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2014 ACCESSORIES AND EQUIPMENT Wiper System & Washer System - Service Information - Cherokee <meta name="InColGX" content=""> </head> <body bgcolor="white" text="black"> <h1>2014 ACCESSORIES AND EQUIPMENT</h1> <h1>Wiper System & Washer System - Service Information - Cherokee</h1><a name="S19164116752014071100000"></a><h2 class="clsHeadOne">DESCRIPTION</h2><a name="S18991568932014071100000"></a><h2 class="clsHeadTwo">FRONT</h2> <p>An electrically operated intermittent front wiper and washer system is standard factory-installed safety equipment on this vehicle. The wiper and washer system includes the following major components, which are described in further detail elsewhere in this service information:</p> <ul class="clsBULLET"> <li><span class="clsEmphBOLD">Front Washer Nozzle</span> - Two fluidic front washer nozzles with integral check valves are secured by latch features to dedicated openings in the hood panel near the base of the windshield.</li> <li><span class="clsEmphBOLD">Front Washer Plumbing</span> - The plumbing for the front washer system consists of rubber hoses, hard plastic tubing and molded rubber or plastic fittings. The plumbing is routed to the dash panel from the washer reservoir along the outboard side of the left front fender load beam. From the dash panel the washer plumbing is routed along the left hood hinge to the hood, then across the underside of the hood panel to the washer nozzles.</li> <li><span class="clsEmphBOLD">Front Wiper Arms And Blades</span> - The two front wiper arms are secured with nuts to the threaded ends of the two wiper pivot shafts, which extend through the cowl plenum cover/grille panel located near the base of the windshield. The two front wiper blades are each secured to their wiper arm with an integral latch, and are parked on the glass near the bottom of the windshield when the front wiper system is not in operation. The left and right wiper arms and wiper blades are unique and are not interchangeable.</li> <li><span class="clsEmphBOLD">Front Wiper Module</span> - The wiper pivot shafts are the only visible components of the front wiper module. The remainder of the module is concealed within the cowl plenum beneath the cowl plenum cover/grille panel. The wiper module includes the wiper module bracket, three rubber-isolated wiper module mounts, the wiper motor, the wiper motor crank arm, the wiper drive link, the wiper connector link and the two wiper pivots.</li> <li><span class="clsEmphBOLD">Washer Fluid Level Switch</span> - The washer fluid level switch is located in a dedicated hole on the lower, outboard side of the washer reservoir, ahead of the left front fender wheel house splash shield.</li> <li><span class="clsEmphBOLD">Washer Pump/Motor</span> - The reversible electric washer pump/motor unit is located in a dedicated hole in a sump area on the lower, outboard side of the washer reservoir, ahead of the left front fender wheel house splash shield. This single reversible washer pump/motor provides washer fluid to either the front or the rear washer system plumbing, depending upon the direction of the pump motor rotation.</li> <li><span class="clsEmphBOLD">Washer Reservoir</span> - The washer reservoir is secured to the left outboard end of the Front End Module (FEM) where it is concealed between the left inner fender shield and the left outer fender panel, ahead of the left front fender wheel house splash shield. The filler neck and cap are the only visible components of the reservoir and, can be easily accessed from the left front corner of the engine compartment.</li> </ul> <p>Certain functions and features of the front wiper and washer systems rely upon resources shared with other electronic modules in the vehicle over a Local Interface Network (LIN) data bus as well as over the Controller Area Network (CAN) data bus. Other electronic modules in the vehicle that may affect front wiper and washer system operation are:</p> <ul class="clsBULLET"> <li><span class="clsEmphBOLD">Body Control Module</span> - The Body Control Module (BCM) is located within the instrument panel on the driver side of the vehicle. Refer to <a class="clsExtHyperlink" id="A00641406_S18620131462014071100000">MODULE, BODY CONTROL, DESCRIPTION</a> .</li> <li><span class="clsEmphBOLD">Light Rain Sensor Module</span> - A Light Rain Sensor Module (LRSM) (also known as the Rain Light Sensor Module/RLSM, the Light Sensor Module/LSM or the Rain Sensor Module/RSM) is used on vehicles equipped with the optional automatic wiper feature. The LRSM is located on a bracket bonded to the inside surface of the windshield glass, near the inside rear view mirror mount.</li> <li><span class="clsEmphBOLD">Right Multifunction Switch</span> - The right multifunction switch is integral to the Steering Column Control Module (SCCM) mounting housing along with the clockspring and the left multifunction switch on the top of the steering column just below the steering wheel. The right multifunction switch is connected to the Steering Control Module (SCM), which is also internal and integral to the SCCM mounting housing. Only the switch control stalk extending from the right side of the steering column is visible, while the remainder of the switch is concealed beneath the steering column shrouds. The right multifunction switch provides all of the driver controls for the front and rear wiper and washer systems.</li> <li><span class="clsEmphBOLD">Steering Control Module</span> - The Steering Control Module (SCM) is internal and integral to the Steering Column Control Module (SCCM) mounting housing which, along with the left and right multifunction switches and the clockspring, is located on the top of the steering column just below the steering wheel. The SCM is completely concealed within the SCCM mounting housing beneath the steering column shrouds. Refer to <a class="clsExtHyperlink" id="A00641406_S17782835782014071100000">MODULE, STEERING COLUMN, DESCRIPTION</a> .</li> </ul> <p>The BCM and the SCM each contain a microcontroller and programming that allow them to communicate with each other and other electronic modules in the vehicle using the Controller Area Network (CAN) data bus. In addition the BCM and the RLSM communicate with each other using the Local Interface Network data bus. Refer to <a class="clsExtHyperlink" id="A00641406_S06081440582014071100000">COMMUNICATION, DESCRIPTION</a> .</p> <p>Hard wired circuitry connects the front wiper and washer system components to the electrical system of the vehicle. These hard wired circuits are integral to several wire harnesses, which are routed throughout the vehicle and retained by many different methods. These circuits may be connected to each other, to the vehicle electrical system and to the front wiper and washer system components through the use of a combination of soldered splices, splice block connectors, and many different types of wire harness terminal connectors and insulators. Refer to the appropriate wiring information. The wiring information includes wiring diagrams, proper wire and connector repair procedures, further details on wire harness routing and retention, as well as pin out and location views for the various wire harness connectors, splices and grounds.</p><a name="S15098116132014071100000"></a><h2 class="clsHeadTwo">HEADLAMP</h2> <p>An electrically operated headlamp washer system is standard factory-installed equipment on this vehicle when it is manufactured for certain markets with High Intensity Discharge (HID) headlamps. The headlamp washer system includes the following major components, which are described in further detail elsewhere in this service information:</p> <ul class="clsBULLET"> <li><span class="clsEmphBOLD">Headlamp Washer Nozzle</span> - A headlamp washer nozzle is secured to the front fascia beneath each front lamp unit.</li> <li><span class="clsEmphBOLD">Headlamp Washer Pump/Motor</span> - The electric headlamp washer pump/motor unit is located in a dedicated hole on the lower, outboard side of the washer reservoir, ahead of the left front fender wheel house splash shield. This high pressure pump is located above and rearward of the reversible front and rear washer pump/motor unit on the reservoir.</li> <li><span class="clsEmphBOLD">Headlamp Washer Plumbing</span> - The plumbing for the headlamp washer system consists of large diameter rubber hoses and molded plastic fittings. The plumbing is routed to the washer nozzles on the front fascia from the washer reservoir. The connections at the headlamp washer pump and the two headlamp washer nozzles feature unique quick-connect fittings.</li> <li><span class="clsEmphBOLD">Headlamp Washer Relay</span> - The headlamp washer relay is soldered onto the Printed Circuit Board (PCB) located within the Power Distribution Center (PDC) and is not serviceable. The PDC is located within the engine compartment near the battery.</li> <li><span class="clsEmphBOLD">Washer Reservoir</span> - A unique washer reservoir is used on vehicles with the optional headlamp washer system, which has dedicated provisions for the headlamp washer pump and plumbing. This reservoir is mounted in the same location and using the same mounting hardware as is used for vehicles without the headlamp washers. The reservoir is concealed between the left inner fender shield and the left outer fender panel, ahead of the left front fender wheel house splash shield. The filler neck and cap are the only visible components of the reservoir and, are accessed from the left front corner of the engine compartment.</li> </ul> <p>Certain functions and features of the headlamp washer system rely upon resources shared with other electronic modules in the vehicle over the Controller Area Network (CAN) data bus. Other electronic modules in the vehicle that may affect headlamp washer system operation are:</p> <ul class="clsBULLET"> <li><span class="clsEmphBOLD">Body Control Module</span> - The Body Control Module (BCM) is located within the instrument panel on the driver side of the vehicle. Refer to <a class="clsExtHyperlink" id="A00641406_S18620131462014071100000">MODULE, BODY CONTROL, DESCRIPTION</a> .</li> <li><span class="clsEmphBOLD">Right Multifunction Switch</span> - The right multifunction switch is integral to the Steering Column Control Module (SCCM) along with the clockspring and the left multifunction switch on the top of the steering column just below the steering wheel. The right multifunction switch is connected to the Steering Control Module (SCM), which is also internal and integral to the SCCM mounting housing. Only the switch control stalk extending from the right side of the steering column is visible, while the remainder of the switch is concealed beneath the steering column shrouds. The right multifunction switch provides all of the driver controls for the headlamp washer system.</li> <li><span class="clsEmphBOLD">Steering Control Module</span> - The Steering Control Module (SCM) is internal and integral to the Steering Column Control Module (SCCM) mounting housing which, along with the left and right multifunction switches and the clockspring, is located on the top of the steering column just below the steering wheel. The SCM is completely concealed within the SCCM mounting housing beneath the steering column shrouds. Refer to <a class="clsExtHyperlink" id="A00641406_S17782835782014071100000">MODULE, STEERING COLUMN, DESCRIPTION</a> .</li> </ul> <p>The BCM and the SCM each contain a microcontroller and programming that allow them to communicate with each other and other electronic modules in the vehicle using the Controller Area Network (CAN) data bus. Refer to <a class="clsExtHyperlink" id="A00641406_S06081440582014071100000">COMMUNICATION, DESCRIPTION</a> .</p> <p>Hard wired circuitry connects the headlamp washer system components to the electrical system of the vehicle. These hard wired circuits are integral to several wire harnesses, which are routed throughout the vehicle and retained by many different methods. These circuits may be connected to each other, to the vehicle electrical system and to the headlamp washer system components through the use of a combination of soldered splices, splice block connectors, and many different types of wire harness terminal connectors and insulators. Refer to the appropriate wiring information. The wiring information includes wiring diagrams, proper wire and connector repair procedures, further details on wire harness routing and retention, as well as pin out and location views for the various wire harness connectors, splices and grounds.</p><a name="S08931859402014071100000"></a><h2 class="clsHeadTwo">REAR</h2> <p>An electrically operated rear wiper and washer system is standard factory equipment on this vehicle. The rear wiper and washer system includes the following major components which are described in further detail elsewhere in this service information:</p> <ul class="clsBULLET"> <li><span class="clsEmphBOLD">Rear Washer Nozzle</span> - The rear washer nozzle and the integrated rear washer system check valve are located in the spoiler on the outer liftgate panel above the center of the liftgate glass opening.</li> <li><span class="clsEmphBOLD">Rear Washer Plumbing</span> - The plumbing for the rear washer system consists of rubber hoses, hard plastic tubing and molded rubber or plastic fittings. The plumbing is routed to the dash panel from the washer reservoir along the outboard side of the left front fender load beam. The plumbing is then routed through the dash into the passenger compartment, up the inner A-pillar to the headliner, above the headliner to the upper liftgate opening header, then through the upper liftgate opening header and the upper liftgate to the rear washer nozzle in the spoiler on the upper liftgate.</li> <li><span class="clsEmphBOLD">Rear Wiper Arm and Blade</span> - The single rear wiper arm and blade assembly is secured by a nut directly to the rear wiper motor output shaft which extends through a rubber grommet inserted through a hole in the liftgate glass and is parked near the base of the liftgate glass when the rear wiper system is not in operation.</li> <li><span class="clsEmphBOLD">Rear Wiper Motor</span> - The rear wiper motor includes the motor and three rubber-isolated wiper motor mounts. The wiper motor output shaft is the only visible component of the rear wiper motor. The remainder of the motor is concealed by the inner liftgate trim panel on the inside of the liftgate beneath the liftgate glass opening.</li> <li><span class="clsEmphBOLD">Washer Pump/Motor</span> - The reversible electric washer pump/motor unit is located in a dedicated hole in a sump area on the lower, outboard surface of the washer reservoir, ahead of the left front fender wheel house. This single reversible washer pump/motor provides washer fluid to either the front or the rear washer system plumbing, depending upon the direction of the pump motor rotation.</li> <li><span class="clsEmphBOLD">Washer Reservoir</span> - The washer reservoir is secured to the left outboard end of the Front End Module (FEM) where it is concealed between the left inner fender shield and the left outer fender panel, ahead of the left front fender wheel house splash shield. The filler neck and cap are the only visible components of the reservoir and, can be easily accessed from the left front corner of the engine compartment.</li> </ul> <p>Certain functions and features of the rear wiper and washer systems rely upon resources shared with other electronic modules in the vehicle over a Local Interface Network (LIN) data bus as well as over the Controller Area Network (CAN) data bus. Other electronic modules in the vehicle that may affect rear wiper and washer system operation are:</p> <ul class="clsBULLET"> <li><span class="clsEmphBOLD">Body Control Module</span> - The Body Control Module (BCM) is located within the instrument panel on the driver side of the vehicle. Refer to <a class="clsExtHyperlink" id="A00641406_S18620131462014071100000">MODULE, BODY CONTROL, DESCRIPTION</a> .</li> <li><span class="clsEmphBOLD">Right Multifunction Switch</span> - The right multifunction switch is integral to the Steering Column Control Module (SCCM) mounting housing along with the clockspring and the left multifunction switch on the top of the steering column just below the steering wheel. The right multifunction switch is connected to the Steering Control Module (SCM), which is also internal and integral to the SCCM mounting housing. Only the switch control stalk extending from the right side of the steering column is visible, while the remainder of the switch is concealed beneath the steering column shrouds. The right multifunction switch provides all of the driver controls for the front and rear wiper and washer systems.</li> <li><span class="clsEmphBOLD">Steering Control Module</span> - The Steering Control Module (SCM) is internal and integral to the Steering Column Control Module (SCCM) mounting housing which, along with the left and right multifunction switches and the clockspring, is located on the top of the steering column just below the steering wheel. The SCM is completely concealed within the SCCM mounting housing beneath the steering column shrouds. Refer to <a class="clsExtHyperlink" id="A00641406_S17782835782014071100000">MODULE, STEERING COLUMN, DESCRIPTION</a> .</li> </ul> <p>Hard wired circuitry connects the rear wiper and washer system components to the electrical system of the vehicle. These hard wired circuits are integral to several wire harnesses which are routed throughout the vehicle and retained by many different methods. These circuits may be connected to each other, to the vehicle electrical system and to the rear wiper and washer system components through the use of a combination of soldered splices, splice block connectors and many different types of wire harness terminal connectors and insulators. Refer to the appropriate wiring information. The wiring information includes wiring diagrams, proper wire and connector repair procedures, further details on wire harness routing and retention, as well as pin out and location views for the various wire harness connectors, splices and grounds.</p><a name="S03864184802014071100000"></a><h2 class="clsHeadOne">OPERATION</h2><a name="S37833593072014071100000"></a><h2 class="clsHeadTwo">FRONT</h2> <p><span class="clsFig"><a class="clsExtGraphicLink" onclick="ajaxModalImg($(this).attr('id'))" id="GC0159502" name="S24643140202014071100000">Fig. 1: Control Knob, Control Stalk & Right Multifunction Switch</a><br><span class="clsCourtesyNote">Courtesy of CHRYSLER GROUP, LLC</span></span></p> <p>The front wiper and washer system is designed to provide the vehicle operator with a convenient, safe and reliable means of maintaining visibility through the windshield glass. The various components of this system are designed to convert electrical energy produced and stored by the vehicle electrical system into the mechanical action of the wiper blades to wipe the outside surface of the glass, as well as into the hydraulic action of the washer system to apply washer fluid stored in an on-board reservoir to the area of the glass to be wiped. When combined, these components provide the means to effectively maintain clear visibility for the vehicle operator by removing excess accumulations of rain, snow, bugs, mud or other minor debris from the outer surface of the windshield glass that might be encountered while driving the vehicle under numerous types of inclement operating conditions.</p> <p>The vehicle operator initiates all front and rear wiper and washer system functions with the control knob (2) and control sleeve (3) on the control stalk (1) of the right multifunction switch that extends from the right side of the steering column, just below the steering wheel. Rotating the control knob on the end of the control stalk, selects the Off, Delay (except with the optional automatic wiper system), Automatic (with the optional automatic wiper system only), Low or High front wiper system operating modes. In the Delay mode, the control knob also allows the vehicle operator to select from one of four intermittent wipe Delay intervals. In the Automatic mode, the control knob allows the vehicle operator to select from one of four automatic wiper sensitivity levels.</p> <p>Pulling the control stalk rearward actuates the momentary front washer system switch, which selects the Wash and Wipe-After-Wash modes depending upon when and how long the switch is held closed. Raising the control stalk upward actuates another momentary switch and selects the Mist mode, which cycles the wiper blades for as long as the switch is held closed then completes the current cycle and parks the blades at the base of the windshield after the control stalk is released.</p> <p>The right multifunction switch provides hard wired digital inputs to the Steering Control Module (SCM) internal to the Steering Column Control Module (SCCM) mounting housing for all of the wiper and washer system functions. The SCM then sends electronic <span class="clsEmphBOLD">wiper switch</span> and <span class="clsEmphBOLD">washer switch</span> status messages to the Body Control Module (BCM) over the Controller Area Network (CAN) data bus requesting the appropriate wiper and washer system operating modes.</p> <p>Front wiper and washer system operation is completely controlled by the SCM and BCM logic circuits, and that logic will only allow these systems to operate when the status of the ignition is Accessory or On. The BCM uses intelligent, high current, self-protected high side switches to control integrated wiper relays that control wiper system operation by energizing or de-energizing the wiper motor low and high speed brushes. The right multifunction switch circuitry receives battery current and a clean ground output from the SCM, then provides digital inputs to the SCM to indicate the selected wiper and washer system mode.</p> <p>The hard wired circuits and components of the front wiper and washer system may be diagnosed using conventional diagnostic tools and procedures. Refer to the appropriate wiring information. However, conventional diagnostic methods will not prove conclusive in the diagnosis of the electronic controls and communication between other modules and devices that provide some features of the front wiper and washer system. The most reliable, efficient and accurate means to diagnose the front wiper and washer system or the electronic controls and communication related to front wiper and washer system operation requires the use of a diagnostic scan tool. Refer to the appropriate diagnostic information.</p><a name="S17962951732014071100000"></a><h2 class="clsHeadThree">OPERATING MODES</h2> <p>Following are paragraphs that briefly describe the operation of each of the front wiper and washer system operating modes.</p> <ul class="clsBULLET"> <li><span class="clsEmphBOLD">Continuous Wipe Mode</span> - When the Low position of the control knob on the control stalk of the right multifunction switch is selected the SCM sends an electronic <span class="clsEmphBOLD">wiper switch low</span> status message to the BCM over the CAN data bus. The BCM then directs battery current to the low speed brush of the wiper motor, causing the wipers to cycle at low speed.<p>When the High position of the control knob is selected the SCM sends an electronic <span class="clsEmphBOLD">wiper switch high</span> status message to the BCM. The BCM then directs battery current to the high speed brush of the wiper motor, causing the wipers to cycle at high speed.</p> <p>When the Off position of the right multifunction switch control knob is selected, the SCM sends an electronic <span class="clsEmphBOLD">wiper switch off</span> status message to the BCM, then one of two events will occur. The event that occurs depends upon the position of the wiper blades on the windshield at the moment that the control knob Off position is selected.</p> <p>If the wiper blades are in the down position on the windshield when the Off position is selected, the park switch that is integral to the wiper motor is closed to ground, which provides a hard wired park switch sense input to the BCM. The BCM then de-energizes the wiper motor and the wiper motor ceases to operate.</p> <p>If the wiper blades are not in the down position on the windshield at the moment the Off position is selected, the park switch is an open circuit and the BCM continues running the wiper motor at low speed until the wiper blades are in the down position on the windshield and the park switch input to the BCM is again closed to ground.</p> </li> <li><span class="clsEmphBOLD">Intermittent Wipe Mode</span> - The following applies to vehicles not equipped with the optional automatic wiper system, or to vehicles equipped with the automatic wiper system that have had that feature disabled using the customer programmable features function.<p>When the control knob on the control stalk of the right multifunction switch is moved to one of the four Delay interval positions the SCM sends an electronic <span class="clsEmphBOLD">wiper switch delay interval</span> status message to the BCM. Then the BCM electronic intermittent wipe logic circuit responds by calculating the correct length of time between wiper sweeps based upon the selected delay interval input.</p> <p>The BCM monitors the changing state of the wiper motor park switch through a hard wired park switch sense input. This input allows the BCM to determine the proper intervals at which to energize and de-energize the wiper motor low speed brush to operate the wiper motor intermittently for one low speed cycle at a time.</p> <p>The BCM logic is also programmed to provide vehicle speed sensitivity to the selected intermittent wipe delay intervals. In order to provide this feature, the BCM monitors electronic <span class="clsEmphBOLD">vehicle speed</span> messages from the Controller Antilock Brake (CAB) (also known as the Antilock Brake Module/ABM, the Antilock Brake System/ABS module or the Electronic Stability Control/ESC module) and doubles the selected delay interval whenever the vehicle speed is about 16 kilometers-per-hour (10 miles-per-hour) or less.</p> </li> <li><span class="clsEmphBOLD">Automatic Wipe Mode</span> - If the vehicle is equipped with the optional automatic wiper system and it is enabled, when the control knob on the control stalk of the right multifunction switch is moved to one of the four sensitivity positions, the SCM sends an electronic <span class="clsEmphBOLD">wiper switch sensitivity</span> message to the BCM over the CAN data bus. The BCM, which is also a Local Interface Network (LIN) data bus master node, relays the <span class="clsEmphBOLD">wiper switch sensitivity</span> message to the Light Rain Sensor Module (LRSM) (also known as the Rain Light Sensor Module/RLSM, the Light Sensor Module/LSM or the Rain Sensor Module/RSM), which is a LIN slave node over the LIN data bus.<p>The LRSM monitors an area within the wipe pattern of the windshield glass for the accumulation of moisture. Based upon internal programming and the selected sensitivity level, when sufficient moisture has accumulated the LRSM sends the appropriate electronic <span class="clsEmphBOLD">wipe command</span> messages back to the BCM over the LIN data bus. Then the BCM operates the wiper system accordingly.</p> <p>As the sensitivity level is set higher, the LRSM is more sensitive to moisture accumulation and will send <span class="clsEmphBOLD">wipe commands</span> more frequently. The third (middle) sensitivity position of the control knob is designed to provide optimal wiper performance for most typical driving requirements. The BCM logic is also programmed to provide an immediate wipe cycle each time the control knob on the control stalk of the multifunction switch is moved from the Off position to one of the four sensitivity positions, and another immediate wipe cycle each time the control knob is moved from a lower sensitivity position to a higher sensitivity position.</p> <p>Also, if a vehicle is equipped with automatic wipers but the feature has been disabled using the customer programmable features function, when any sensitivity position is selected with the right multifunction switch control knob the system will respond in the same manner as in the intermittent wipe mode. The automatic wiper system has features designed to protect the mechanical components of the wiper system, and will not allow automatic wiper operation under the following conditions:</p> <ul class="clsBULLET"> <li><span class="clsEmphBOLD">Low Ambient Temperature</span> - When the ambient temperature is below 0° C (32° F), the automatic wipers will not operate during a new ignition cycle until the wiper switch has been moved to a different position than that which was selected at the moment the current ignition cycle began, or until a vehicle speed input is detected.</li> <li><span class="clsEmphBOLD">Transmission In Neutral</span> - When the transmission gear selector is placed in the Neutral <span class="clsEmphBOLD">N</span> position while the ignition status is On, the automatic wipers will not operate during the current ignition cycle until the wiper switch has been moved to a different position than that which was selected at the moment that Neutral <span class="clsEmphBOLD">N</span> was selected, until the vehicle speed is greater than 8 kilometers-per-hour (5 miles-per-hour) or until the transmission gear selector is moved out of the Neutral <span class="clsEmphBOLD">N</span> position, whichever occurs first.</li> </ul> </li> <li><span class="clsEmphBOLD">Mist Wipe Mode</span> - When the control stalk of the right multifunction switch is lifted upward to the momentary Mist position, the SCM sends an electronic <span class="clsEmphBOLD">wiper mist mode</span> status message to the BCM. The BCM then energizes the low speed brush of the wiper motor for as long as the switch is held closed, then de-energizes the motor when the state of the switch changes to open, parking the wiper blades near the base of the windshield. The BCM can operate the wiper motor in this mode for only one low speed cycle at a time, or for an indefinite number of sequential low speed cycles, depending upon how long the switch is held closed.</li> <li><span class="clsEmphBOLD">Headlamps On With Wipers Mode</span> - The circuitry of the BCM provides an automatic Headlamps On With Wipers mode for vehicles equipped with the optional automatic headlamps. This is a customer programmable feature that can be enabled or disabled through the Electronic Vehicle Information Center (EVIC). If this feature is enabled, when the headlamp switch is in the Auto position, the headlamps will turn On automatically whenever the windshield wipers are turned On; and, if the headlamps were turned On automatically when the wipers were turned On, they will also turn Off automatically when the wipers are turned Off.<p>If this feature is enabled in vehicles equipped with the optional automatic wiper feature, when the automatic wiper mode is selected the headlamps will turn On automatically only after the wipers complete three automatic wipe cycles within about 30 seconds, and they will turn Off automatically after 3 minutes elapse without any automatic wipe cycles unless ambient light conditions dictate otherwise.</p> </li> <li><span class="clsEmphBOLD">Wash Mode</span> - When the control stalk of the right multifunction switch is pulled rearward to the momentary Wash position for more than about one-half second with the wiper system operating, the SCM sends an electronic <span class="clsEmphBOLD">washer switch</span> status message to the BCM. Then the BCM directs battery current and ground to the washer pump/motor. This will cause the washer pump/motor to be energized for as long as the switch is held closed (up to approximately 20 seconds) and to be de-energized when the control stalk is released.<p>When the control stalk is pulled to the momentary Wash position while the wiper system is operating in one of the Delay interval (or sensitivity level with automatic wipers) positions, the washer pump/motor operation is the same. However, the BCM logic also overrides the selected delay interval or sensitivity level and operates the wiper motor in a continuous low speed mode for as long as the control stalk is held in the momentary Wash position, then reverts to the selected delay interval or sensitivity level several wipe cycles after the control stalk is released. If the Wash switch is held closed for more than about 20 seconds, the BCM will suspend washer pump/motor operation until the control stalk is released for about 2 seconds, then cycled back to the Wash position.</p> </li> <li><span class="clsEmphBOLD">Wipe-After-Wash Mode</span> - When the control stalk of the right multifunction switch is pulled rearward to the momentary Wash position for more than about one-half second while the wiper system is not operating, the SCM sends an electronic <span class="clsEmphBOLD">washer switch</span> status message to the BCM. Then the BCM directs battery current and ground to operate the washer pump/motor and energizes the wiper motor in a continuous low speed mode for as long as the switch is held closed (up to approximately 20 seconds). When the control stalk is released, the BCM de-energizes the washer pump/motor immediately, but allows the wiper motor to operate for two or three additional wipe cycles before it de-energizes the wiper motor and parks the wiper blades near the base of the windshield.<p>If the control stalk is pulled rearward for more than about 20 seconds, the BCM will suspend washer pump/motor operation until the stalk is released for about 2 seconds and then cycled back to the Wash position; however, the wipers will continue to operate for as long as the switch is held closed. The BCM monitors the changing state of the wiper motor park switch through a hard wired wiper park switch sense circuit input. This input allows the BCM to count the number of wipe cycles that occur after the control stalk is released, and to determine the proper interval at which to de-energize the wiper motor to complete the Wipe-After-Wash mode cycle.</p> </li> </ul><a name="S09437346292014071100000"></a><h2 class="clsHeadTwo">HEADLAMP</h2> <p>The headlamp washer system is designed to provide the vehicle operator with a convenient, safe, and reliable means of maintaining High Intensity Discharge (HID) headlamp lighting performance. The various components of this system are designed to convert electrical energy produced by the vehicle electrical system into the hydraulic action of the washer system to apply washer fluid stored in an on-board reservoir to the lenses of the two front lamp units, removing excess accumulations of snow, ice, bugs, mud, or other minor debris from the front lamps that might be encountered while driving the vehicle under numerous types of inclement operating conditions.</p> <p>The vehicle operator initiates the headlamp washer system function using the control stalk of the right multifunction switch that extends from the right side of the steering column, just below the steering wheel. While the HID headlamp low beams are turned On, pulling the control stalk rearward towards the steering wheel beyond the actuation point for more than about 100 milliseconds (0.10 second) activates the front washer pump/motor. During any ignition cycle, the first time the front washer pump/motor is activated and; thereafter, each eleventh time the front washer pump/motor is activated, the headlamp washer pump/motor cycle is also activated.</p> <p>Each time the headlamp washers are employed, the headlamp washer pump/motor is activated using a two shot strategy. The initial shot wets the lenses of the HID headlamps. The lenses are then allowed to soak for a short interval before a second shot is dispensed to rinse the lenses. Each shot results in several high pressure streams of washer fluid being dispensed upon the headlamp lenses by the headlamp washer nozzles.</p> <p>Headlamp washer system operation is completely controlled by the Body Control Module (BCM) logic circuits based upon programming and electronic <span class="clsEmphBOLD">wash command</span> message inputs received from the Steering Control Module (SCM) internal to the Steering Column Control Module (SCCM) for all of the wiper and washer system functions. The SCM then sends electronic <span class="clsEmphBOLD">wiper switch</span> and <span class="clsEmphBOLD">washer switch</span> status messages to the BCM over the Controller Area Network (CAN) data bus requesting the appropriate wiper and washer system operating modes.</p> <p>The BCM will only allow this system to operate when the status of the ignition is On and the headlamp low beams are turned On. When the appropriate inputs are monitored and the appropriate programming requirements have been met, the BCM provides the appropriate output to the headlamp washer relay integral to the Printed Circuit Board (PCB) within the Power Distribution Center (PDC). The BCM uses a Low Side Driver (LSD) to energize or de-energize the headlamp washer relay which, in turn, controls the operation of the headlamp washer pump/motor unit.</p> <p>The hard wired circuits and components of the headlamp washer system may be diagnosed using conventional diagnostic tools and procedures. Refer to the appropriate wiring information. However, conventional diagnostic methods will not prove conclusive in the diagnosis of the headlamp washer system or the electronic controls and communication between other modules and devices that provide some features of the headlamp washer system. The most reliable, efficient and accurate means to diagnose the headlamp washer system or the electronic controls and communication related to headlamp washer system operation requires the use of a diagnostic scan tool. Refer to the appropriate diagnostic information.</p><a name="S38422977552014071100000"></a><h2 class="clsHeadTwo">REAR</h2> <p><span class="clsFig"><a class="clsExtGraphicLink" onclick="ajaxModalImg($(this).attr('id'))" id="GC0159502" name="S23938974432014071100000">Fig. 2: Control Knob, Control Stalk & Right Multifunction Switch</a><br><span class="clsCourtesyNote">Courtesy of CHRYSLER GROUP, LLC</span></span></p> <p>The rear wiper and washer system is designed to provide the vehicle operator with a convenient, safe, and reliable means of maintaining visibility through the liftgate glass. The various components of this system are designed to convert electrical energy produced by the vehicle electrical system into the mechanical action of the wiper blade to wipe the outside surface of the glass, as well as into the hydraulic action of the washer system to apply washer fluid stored in an on-board reservoir to the area of the glass to be wiped. When combined, these components provide the means to effectively maintain clear visibility for the vehicle operator by removing excess accumulations of rain, snow, bugs, mud, or other minor debris from the outer surface of the liftgate glass that might be encountered while driving the vehicle under numerous types of inclement operating conditions.</p> <p>The vehicle operator initiates all rear wiper and washer system functions with the control sleeve (3) and the control stalk (1) of the right (wiper) multifunction switch that extends from the right side of the steering column, just below the steering wheel. Rotating the control sleeve to a detent position selects the Off or Delay (Intermittent) rear wiper system operating modes. Pushing the control stalk to a momentary forward position actuates the rear washer system switch, which selects the rear wash mode and dispenses washer fluid in the wipe pattern on the liftgate glass for as long as the switch is held closed.</p> <p>The right multifunction switch provides hard wired digital inputs to the Steering Control Module (SCM) internal to the Steering Column Control Module (SCCM) mounting housing for all of the wiper and washer system functions. The SCM then sends electronic <span class="clsEmphBOLD">wiper switch</span> and <span class="clsEmphBOLD">washer switch</span> status messages to the Body Control Module (BCM) over the Controller Area Network (CAN) data bus requesting the appropriate wiper and washer system operating modes.</p> <p>Rear wiper and washer system operation is completely controlled by the SCM and BCM logic circuits, and that logic will only allow these systems to operate when the status of the ignition is Accessory or On. The BCM uses a High Side Driver (HSD) to control rear wiper system operation by energizing or de-energizing the rear wiper motor. The right multifunction switch circuitry receives battery current and a clean ground output from the SCM, then provides digital inputs to the SCM to indicate the selected wiper and washer system mode.</p> <p>The hard wired circuits and components of the rear wiper and washer system may be diagnosed using conventional diagnostic tools and procedures. Refer to the appropriate wiring information. However, conventional diagnostic methods will not prove conclusive in the diagnosis of the rear wiper and washer system or the electronic controls and communication between other modules and devices that provide some features of the rear wiper and washer system. The most reliable, efficient and accurate means to diagnose the rear wiper and washer system or the electronic controls and communication related to rear wiper and washer system operation requires the use of a diagnostic scan tool. Refer to the appropriate diagnostic information.</p><a name="S38986324222014071100000"></a><h2 class="clsHeadThree">OPERATING MODES</h2> <p>Following are paragraphs that briefly describe the operation of each of the rear wiper and washer system operating modes.</p> <ul class="clsBULLET"> <li><span class="clsEmphBOLD">Intermittent Wipe Mode</span> - When the right (wiper) multifunction switch control sleeve is moved to the Delay (Intermittent) position, the SCM sends an electronic <span class="clsEmphBOLD">rear wiper switch on</span> status message to the BCM over the CAN data bus. The BCM responds by energizing a High Side Driver (HSD) that directs battery current to the rear wiper motor. If the front wiper system is inactive, the BCM will cycle the rear wiper at a fixed intermittent speed. If the front wiper system is active, the BCM cycles the rear wiper in a synchronous manner, at one-half the speed of the front wipers. If Reverse (<span class="clsEmphBOLD">R</span> ) has been selected with the transmission gear selector, the BCM operates the rear wiper in a continuous manner.<p>When the Off position of the right multifunction switch control sleeve is selected, the SCM sends an electronic <span class="clsEmphBOLD">rear wiper switch off</span> status message to the BCM over the CAN data bus. The event that occurs depends upon the position of the wiper blade on the liftgate glass at the moment that the control sleeve Off position is selected.</p> <p>If the rear wiper blade is in the down position on the glass when the Off position is selected, the park switch that is integral to the rear wiper motor is an open circuit, which provides a hard wired park switch sense input to the BCM. The internal BCM circuitry pulls the park switch sense input to ground when the switch is open so that the microcontroller sees a ground when the wiper blade is parked. The BCM then de-energizes the rear wiper motor and the wiper motor ceases to operate.</p> <p>If the rear wiper blade is not in the down position on the liftgate glass at the moment the Off position is selected, the park switch is closed to fused ignition output and the BCM continues running the wiper motor at low speed until the rear wiper blade is in the down position on the liftgate glass and the park switch input to the BCM is again pulled to ground.</p> </li> <li><span class="clsEmphBOLD">Wash Mode</span> - When the control stalk of the right (wiper) multifunction switch is pushed forward to the momentary rear Wash position, the SCM sends an electronic <span class="clsEmphBOLD">washer switch</span> status message to the BCM. Then the BCM directs battery current and ground to the washer pump/motor. This will cause the washer pump/motor to be energized for as long as the switch is held closed (up to approximately 20 seconds) and to be de-energized when the control stalk is released.<p>When the control stalk is pushed forward to the momentary Wash position while the rear wiper system is operating the washer pump/motor operation is the same. However, the BCM logic also overrides the selected wiper operating mode and operates the wiper motor in a continuous low speed mode for as long as the control stalk is held in the momentary Wash position, then reverts to the selected operating mode several wipe cycles after the control stalk is released. If the Wash switch is held closed for more than about 20 seconds, the BCM will suspend washer pump/motor operation until the control stalk is released for about 2 seconds, then cycled back to the Wash position.</p> </li> <li><span class="clsEmphBOLD">Wipe-After-Wash Mode</span> - When the control stalk of the right (wiper) multifunction switch is pushed forward to the momentary rear Wash position for more than about one-half second while the rear wiper system is not operating, the BCM directs battery current and ground to the washer pump/motor and energizes the rear wiper motor in a continuous mode for as long as the switch is held closed. When the control stalk is released, the BCM de-energizes the washer pump/motor immediately, but allows the rear wiper motor to operate for about three additional wipe cycles. An additional wipe cycle is performed about six seconds later before the BCM de-energizes the rear wiper motor and parks the wiper blade near the base of the liftgate glass.<p>The BCM monitors the changing state of the wiper motor park switch through a hard wired wiper park switch sense circuit input. This input allows the BCM to monitor the number of wipe cycles that occur after the control stalk is released, and to determine the proper interval at which to de-energize the wiper motor to complete the Wipe-After-Wash mode cycle.</p> </li> </ul><a name="S23626824392014071100000"></a><h2 class="clsHeadOne">DIAGNOSIS AND TESTING</h2><a name="S35717994362014071100000"></a><h2 class="clsHeadTwo">DIAGNOSIS AND TESTING - FRONT WIPER AND WASHER SYSTEM</h2> <p><span class="clsWarning"><table> <tr> <td class="clsWarningLabel"><span>WARNING:</span></td> <td> <p>To avoid serious or fatal injury on vehicles equipped with airbags, disable the Supplemental Restraint System (SRS) before attempting any steering wheel, steering column, airbag, Occupant Classification System (OCS), seat belt tensioner, impact sensor or instrument panel component diagnosis or service. Disconnect and isolate the battery negative (ground) cable, then wait two minutes for the system capacitor to discharge before performing further diagnosis or service. This is the only sure way to disable the SRS. Failure to follow these instructions may result in accidental airbag deployment.</p> </td> </tr> </table></span></p> <p>If the front wiper motor operates, but the wipers do not move on the windshield, replace the ineffective front wiper motor or wiper linkage module. If the washer pump/motor operates, but no washer fluid is dispensed on the glass; or, if the wipers operate, but chatter, lift or do not clear the glass, clean and inspect the front wiper and washer system components as required. Refer to <a class="clsHyperlink" href="#S25271343542014071100000">CLEANING</a> and <a class="clsHyperlink" href="#S18234511082014071100000">INSPECTION</a>.</p> <p>The hard wired front wiper and washer system circuits and components may be diagnosed using conventional diagnostic tools and procedures. Refer to the appropriate wiring information. The wiring information includes wiring diagrams, proper wire and connector repair procedures, details of wire harness routing and retention, connector pin out information and location views for the various wire harness connectors, splices and grounds.</p> <p>However, conventional diagnostic methods will not prove conclusive in the diagnosis of the front wiper and washer system or the electronic controls and communication between other modules and devices that provide some features of the front wiper and washer system. The most reliable, efficient and accurate means to diagnose the front wiper and washer system or the electronic controls and communication related to front wiper and washer system operation requires the use of a diagnostic scan tool. Refer to the appropriate diagnostic information.</p> <p><span class="clsNote"><table> <tr> <td class="clsNoteLabel"><span>NOTE:</span></td> <td> <p>The front wiper and washer switches are integral to the right multifunction switch in the Steering Column Control Module (SCCM) mounting housing. The right multifunction switch communicates with the Steering Control Module (SCM), which is also internal and integral to the SCCM mounting housing. The SCM communicates with the Body Control Module (BCM) over the Controller Area Network (CAN) data bus. The BCM controls front wiper motor operation through wiper relays that are integral to the Printed Circuit Board (PCB) within the BCM.</p> <p>Before performing any of the following tests, determine whether the other functions of the right multifunction switch are operational. If other right multifunction switch functions are ineffective, diagnose and repair that problem before attempting to repair the Wiper and Washer System.</p> </td> </tr> </table></span></p> <p><span class="clsArticleTable"><a name="S357179943620140711000001"></a><table cellspacing="0" class="clsArticleTable58"> <colgroup> <col span="1" id="COLSPEC6" width="372px"> <col span="1" id="" width="367px"> <col span="1" id="COLSPEC7" width="600px"> </colgroup> <thead> <tr class="clsTblHead"> <th colspan="3" align="CENTER" class="clsCellNormal">FRONT WIPER AND WASHER SYSTEM DIAGNOSIS</th> </tr> <tr class="clsTblHead"> <th align="CENTER" class="clsCellNormal">CONDITION</th> <th align="CENTER" class="clsCellNormal">POSSIBLE CAUSES</th> <th align="CENTER" class="clsCellNormal">CORRECTION</th> </tr> </thead> <tbody> <tr> <td rowspan="5" align="LEFT" class="clsCellNormal">WIPER MOTOR DOES NOT OPERATE IN ANY SWITCH POSITION</td> <td valign="TOP" align="LEFT" class="clsCellNormal">1. Ineffective motor ground circuit.</td> <td valign="TOP" align="LEFT" class="clsCellNormal">1. Test and repair open wiper motor ground circuit if required.</td> </tr> <tr> <td align="" class="clsCellNormal">2. Ineffective motor feed circuits.</td> <td align="" class="clsCellNormal">2. Test and repair low speed and high speed feed circuits between BCM and wiper motor if required.</td> </tr> <tr> <td align="" class="clsCellNormal">3. Ineffective SCM inputs or outputs.</td> <td align="" class="clsCellNormal">3. Use a diagnostic scan tool and the appropriate diagnostic information for further SCM diagnosis.</td> </tr> <tr> <td align="" class="clsCellNormal">4. Ineffective BCM inputs or outputs.</td> <td align="" class="clsCellNormal">4. Use a diagnostic scan tool and the appropriate diagnostic information for further BCM diagnosis.</td> </tr> <tr> <td valign="TOP" align="LEFT" class="clsCellNormal">5. Ineffective wiper motor.</td> <td valign="TOP" align="LEFT" class="clsCellNormal">5. Test and replace open or shorted wiper motor as required.</td> </tr> <tr> <td rowspan="3" align="LEFT" class="clsCellNormal">WIPERS DO NOT PARK CORRECTLY</td> <td align="" class="clsCellNormal">1. Ineffective wiper motor park switch input circuit.</td> <td align="" class="clsCellNormal">1. Test and repair wiper park switch input circuit between BCM and wiper motor if required.</td> </tr> <tr> <td align="" class="clsCellNormal">2. Ineffective BCM inputs or outputs.</td> <td align="" class="clsCellNormal">2. Use a diagnostic scan tool and the appropriate diagnostic information for further BCM diagnosis.</td> </tr> <tr> <td align="" class="clsCellNormal">3. Ineffective wiper motor park switch.</td> <td align="" class="clsCellNormal">3. Test and replace wiper motor if required.</td> </tr> <tr> <td rowspan="3" align="LEFT" class="clsCellNormal">WIPER MOTOR OPERATES SLOWLY IN ALL SWITCH POSITIONS</td> <td valign="TOP" align="LEFT" class="clsCellNormal">1. Ineffective wiper motor.</td> <td valign="TOP" align="LEFT" class="clsCellNormal">1. Check amperage draw with linkage disconnected from wiper motor output shaft. Correct draw should be about 2 amperes on Low speed, or 3 amperes on High speed. If incorrect, refer to the appropriate Possible Cause that follows:</td> </tr> <tr> <td align="" class="clsCellNormal">2. Amperage draw too low.</td> <td align="" class="clsCellNormal">2. Test and repair shorted low and high speed feed circuits if required.</td> </tr> <tr> <td valign="TOP" align="LEFT" class="clsCellNormal">3. Amperage draw too high.</td> <td valign="TOP" align="LEFT" class="clsCellNormal">3. With linkage disconnected from wiper motor output shaft, check linkage and pivots for binding. If binding is detected, repair or replace wiper linkage module if required. If no linkage binding detected, replace the wiper motor if required.</td> </tr> <tr> <td align="LEFT" class="clsCellNormal">WIPERS RUN AT HIGH SPEED WITH SWITCH LOW SPEED SELECTED OR AT LOW SPEED WITH SWITCH HIGH SPEED SELECTED</td> <td valign="TOP" align="LEFT" class="clsCellNormal">1. Ineffective motor feed circuit wiring.</td> <td valign="TOP" align="LEFT" class="clsCellNormal">1. Test and repair low speed and high speed feed circuits between BCM and wiper motor if required.</td> </tr> <tr> <td align="LEFT" class="clsCellNormal">AUTOMATIC WIPERS ONLY ARE INOPERATIVE</td> <td align="LEFT" class="clsCellNormal">1. Automatic wipers (Rain Sensing) feature has been disabled.</td> <td align="LEFT" class="clsCellNormal">1. Be certain that the automatic wipers (Rain Sensing) feature is enabled in the Customer Programmable Features Settings menu.</td> </tr> <tr> <td rowspan="5" align="LEFT" class="clsCellNormal">WASHER PUMP DOES NOT OPERATE</td> <td align="" class="clsCellNormal">1. Ineffective washer pump ground circuit.</td> <td align="" class="clsCellNormal">1. Test and repair open washer pump ground circuit if required.</td> </tr> <tr> <td align="" class="clsCellNormal">2. Ineffective washer pump feed circuits.</td> <td align="" class="clsCellNormal">2. Test and repair washer pump feed circuits between BCM and washer pump if required.</td> </tr> <tr> <td align="" class="clsCellNormal">3. Ineffective SCM inputs or outputs.</td> <td align="" class="clsCellNormal">3. Use a diagnostic scan tool and the appropriate diagnostic information for further SCM diagnosis.</td> </tr> <tr> <td align="" class="clsCellNormal">4. Ineffective BCM inputs or outputs.</td> <td align="" class="clsCellNormal">4. Use a diagnostic scan tool and the appropriate diagnostic information for further BCM diagnosis.</td> </tr> <tr> <td align="" class="clsCellNormal">5. Ineffective washer pump.</td> <td align="" class="clsCellNormal">5. Test and replace open or shorted washer pump if required.</td> </tr> </tbody> </table></span></p><a name="S37845180292014071100000"></a><h2 class="clsHeadThree">DIAGNOSING FALSE WIPES (AUTOMATIC WIPER ONLY)</h2> <p>False wipes are unnecessary wipes that occur when the control knob of the right multifunction switch is in one of the four automatic wiper sensitivity positions and no rain or moisture is apparent within the wipe pattern on the windshield glass. Because this system is designed to operate whenever it detects moisture, if the switch is in one of the automatic wiper sensitivity positions any road spray, bug splatters or mist from passing cars or trucks may occasionally cause the wipers to cycle. These are normal characteristics of this system and are not false wipes.</p> <p>False wipes generally are the result of foreign material or flaws that interfere with the system optics. The optics for this system allow the Light Rain Sensor Module (LRSM) (also known as the Rain Light Sensor Module/RLSM, the Light Sensor Module/LSM or the Rain Sensor Module/RSM) to precisely transmit several InfraRed (IR) light beams and monitor the intensity of these beams reflected from the outer surface of the windshield glass to determine the presence of moisture. The sensitivity of this system is such that anything that distorts the focus or intensity of the IR light beams or impacts the ability of the photo diodes within the LRSM to see and accurately measure these light beams can result in the LRSM logic misinterpreting the resulting input data as moisture on the windshield. The optics for this system include the lenses of the LRSM, the adhesive silicone gelatin (SilGel) layer that bonds the LRSM to the inside of the windshield and the windshield glass.</p> <p>The following procedure should only be used if false wipe occurrences are frequent and persistent. Perform diagnosis of the wiper system, the right multifunction switch, the Steering Control Module (SCM) and the LRSM using a diagnostic scan tool and the appropriate diagnostic procedures before performing the following:</p> <p><span class="clsNote"><table> <tr> <td class="clsNoteLabel"><span>NOTE:</span></td> <td> <p>The Light Rain Sensor Module (LRSM) mounting bracket is serviced as a unit with the windshield glass. If either the bracket or the glass is ineffective or damaged, the entire LRSM bracket and windshield glass unit must be replaced. Also, if the LRSM is removed from the mounting bracket for any reason, the integrity of the adhesive silicone gelatin (SilGel) layer of the LRSM will be compromised and the silicone gelatin pad must be replaced with a new unit.</p> </td> </tr> </table></span></p> <ol class="clsARABICNUM"> <li>Carefully inspect the outer surface of the windshield glass for physical damage, including scratches, cracks or chips in the vicinity of the LRSM mounting bracket. <span class="clsEmphBOLD">Scratches, cracks or chips in the windshield glass outside the area of the LRSM mounting bracket lenses will not cause false wipes.</span> If OK, go to Step 2. If not OK, replace the damaged windshield.</li> <li>From the outside of the windshield glass, carefully inspect the adhesive layer between the windshield glass and the LRSM bracket for any large voids (air pockets). If an adhesive void greater than about 1 millimeter (0.04 inch) is observed, replace the flawed silicone gelatin pad. If OK, go to Step 3.</li> <li>Lightly pull the LRSM away from the windshield bracket to confirm that both sides of the spring steel LRSM mounting band are fully engaged with the mounting bracket on the inside of the windshield glass. If OK, go to Step 4. If not OK, install the LRSM mounting band onto the bracket as required.</li> <li>Remove the LRSM from the mounting bracket. Carefully inspect the LRSM mounting bracket for any physical damage and inspect the windshield glass area within the LRSM mounting bracket for contamination. If OK, go to Step 5. If contaminated, clean any foreign material from the windshield glass using rubbing alcohol and a lint-free cloth. If damaged, replace the damaged LRSM bracket and windshield as a unit.</li> <li>Carefully replace the LRSM with a new unit. Refer to <a class="clsHyperlink" href="#S07282664562014071100000">MODULE, LIGHT RAIN SENSOR, INSTALLATION</a>.</li> </ol><a name="S10402370742014071100000"></a><h2 class="clsHeadTwo">DIAGNOSIS AND TESTING - HEADLAMP WASHER SYSTEM</h2> <p><span class="clsWarning"><table> <tr> <td class="clsWarningLabel"><span>WARNING:</span></td> <td> <p>To avoid serious or fatal injury on vehicles equipped with airbags, disable the Supplemental Restraint System (SRS) before attempting any steering wheel, steering column, airbag, Occupant Classification System (OCS), seat belt tensioner, impact sensor or instrument panel component diagnosis or service. Disconnect and isolate the battery negative (ground) cable, then wait two minutes for the system capacitor to discharge before performing further diagnosis or service. This is the only sure way to disable the SRS. Failure to follow these instructions may result in accidental airbag deployment.</p> </td> </tr> </table></span></p> <p>Before attempting to diagnose the headlamp washer system, confirm whether the front washer system operates satisfactorily. If the front washer system is ineffective or operates improperly, diagnose and repair that problem before attempting to repair the headlamp washer system. If the front washer system operates satisfactorily and the headlamp washer pump/motor unit operates, but both headlamp washer nozzles do not dispense washer fluid on the front lamp unit lenses, inspect the headlamp washer plumbing for pinched or leaking hoses and fittings. If the headlamp washer pump/motor unit does not operate, check the headlamp washer system fuse.</p> <p>The hard wired headlamp washer system circuits and components may be diagnosed using conventional diagnostic tools and procedures. Refer to the appropriate wiring information. The wiring information includes wiring diagrams, proper wire and connector repair procedures, details of wire harness routing and retention, connector pin out information and location views for the various wire harness connectors, splices and grounds.</p> <p>However, conventional diagnostic methods will not prove conclusive in the diagnosis of the headlamp washer system or the electronic controls and communication between other modules and devices that provide some features of the headlamp washer system. The most reliable, efficient and accurate means to diagnose the headlamp washer system or the electronic controls and communication related to headlamp washer system operation requires the use of a diagnostic scan tool. Refer to the appropriate diagnostic information.</p><a name="S35638451292014071100000"></a><h2 class="clsHeadTwo">DIAGNOSIS AND TESTING - REAR WIPER AND WASHER SYSTEM</h2> <p><span class="clsWarning"><table> <tr> <td class="clsWarningLabel"><span>WARNING:</span></td> <td> <p>To avoid serious or fatal injury on vehicles equipped with airbags, disable the Supplemental Restraint System (SRS) before attempting any steering wheel, steering column, airbag, Occupant Classification System (OCS), seat belt tensioner, impact sensor or instrument panel component diagnosis or service. Disconnect and isolate the battery negative (ground) cable, then wait two minutes for the system capacitor to discharge before performing further diagnosis or service. This is the only sure way to disable the SRS. Failure to follow these instructions may result in accidental airbag deployment.</p> </td> </tr> </table></span></p> <p>If the rear wiper motor operates, but the wiper motor output shaft does not move, replace the ineffective rear wiper motor. If the washer pump/motor operates, but no washer fluid is dispensed on the glass; or, if the wiper operates, but chatters, lifts, or does not clear the glass, clean and inspect the rear wiper and washer system components as required. Refer to <a class="clsHyperlink" href="#S25271343542014071100000">CLEANING</a> and <a class="clsHyperlink" href="#S18234511082014071100000">INSPECTION</a>.</p> <p>The hard wired rear wiper and washer system circuits and components may be diagnosed using conventional diagnostic tools and procedures. Refer to the appropriate wiring information. The wiring information includes wiring diagrams, proper wire and connector repair procedures, details of wire harness routing and retention, connector pin out information and location views for the various wire harness connectors, splices and grounds.</p> <p>However, conventional diagnostic methods will not prove conclusive in the diagnosis of the electronic controls and communication between other modules and devices that provide some features of the rear wiper and washer system. The most reliable, efficient and accurate means to diagnose the rear wiper and washer system or the electronic controls and communication related to rear wiper and washer system operation requires the use of a diagnostic scan tool. Refer to the appropriate diagnostic information.</p> <p><span class="clsNote"><table> <tr> <td class="clsNoteLabel"><span>NOTE:</span></td> <td> <p>The rear wiper and washer switches are integral to the right multifunction switch in the Steering Column Control Module (SCCM). The right multifunction switch communicates with the Steering Control Module (SCM), which is also integral to the SCCM. The SCM communicates with the Body Control Module (BCM) over the Controller Area Network (CAN) data bus. The BCM controls rear wiper motor operation through the rear wiper relay that is integral to the Printed Circuit Board (PCB) within the BCM.</p> <p>Before performing any of the following tests, determine whether the other functions of the right multifunction switch are operational. If other right multifunction switch functions are ineffective, diagnose and repair that problem before attempting to repair the Rear Wiper and Washer System.</p> </td> </tr> </table></span></p> <p><span class="clsArticleTable"><a name="S356384512920140711000001"></a><table cellspacing="0" class="clsArticleTable58"> <colgroup> <col span="1" id="COLSPEC10" width="540px"> <col span="1" id="" width="595px"> <col span="1" id="COLSPEC11" width="600px"> </colgroup> <thead> <tr class="clsTblHead"> <th colspan="3" align="CENTER" class="clsCellNormal">REAR WIPER AND WASHER SYSTEM DIAGNOSIS</th> </tr> <tr class="clsTblHead"> <th align="CENTER" class="clsCellNormal">CONDITION</th> <th align="CENTER" class="clsCellNormal">POSSIBLE CAUSES</th> <th align="CENTER" class="clsCellNormal">CORRECTION</th> </tr> </thead> <tbody> <tr> <td rowspan="5" align="LEFT" class="clsCellNormal">WIPER MOTOR DOES NOT OPERATE IN ANY SWITCH POSITION</td> <td valign="TOP" align="LEFT" class="clsCellNormal">1. Ineffective motor ground circuit.</td> <td valign="TOP" align="LEFT" class="clsCellNormal">1. Test and repair open wiper motor ground circuit if required.</td> </tr> <tr> <td align="" class="clsCellNormal">2. Ineffective motor feed circuits.</td> <td align="" class="clsCellNormal">2. Test and repair motor feed circuit between BCM and rear wiper motor if required.</td> </tr> <tr> <td align="" class="clsCellNormal">3. Ineffective SCM inputs or outputs.</td> <td align="" class="clsCellNormal">3. Use a diagnostic scan tool and the appropriate diagnostic information for further SCM diagnosis.</td> </tr> <tr> <td align="" class="clsCellNormal">4. Ineffective BCM inputs or outputs.</td> <td align="" class="clsCellNormal">4. Use a diagnostic scan tool and the appropriate diagnostic information for further BCM diagnosis.</td> </tr> <tr> <td valign="TOP" align="LEFT" class="clsCellNormal">5. Ineffective wiper motor.</td> <td valign="TOP" align="LEFT" class="clsCellNormal">5. Test and replace open or shorted wiper motor if required.</td> </tr> <tr> <td rowspan="3" align="LEFT" class="clsCellNormal">WIPER DOES NOT PARK CORRECTLY</td> <td align="" class="clsCellNoBottom">1. Ineffective wiper motor park switch input circuit.</td> <td align="" class="clsCellNoBottom">1. Test and repair wiper park switch input circuit between BCM and rear wiper motor if required.</td> </tr> <tr> <td align="" class="clsCellNoBottom">2. Ineffective BCM inputs or outputs.</td> <td align="" class="clsCellNoBottom">2. Use a diagnostic scan tool and the appropriate diagnostic information for further BCM diagnosis.</td> </tr> <tr> <td align="" class="clsCellNormal">3. Ineffective wiper motor park switch.</td> <td align="" class="clsCellNormal">3. Test and replace rear wiper motor if required.</td> </tr> <tr> <td rowspan="3" align="LEFT" class="clsCellNormal">WIPER MOTOR OPERATES SLOWLY</td> <td valign="TOP" align="LEFT" class="clsCellNormal">1. Ineffective wiper motor.</td> <td valign="TOP" align="LEFT" class="clsCellNormal">1. Check amperage draw with wiper arm disconnected from rear wiper motor output shaft. Correct draw should be about 6 amperes. If incorrect, refer to the appropriate Possible Cause that follows:</td> </tr> <tr> <td align="" class="clsCellNormal">2. Amperage draw too low.</td> <td align="" class="clsCellNormal">2. Test and repair shorted rear wiper motor signal and fused ignition switch output (run - accessory) circuits if required.</td> </tr> <tr> <td valign="TOP" align="LEFT" class="clsCellNormal">3. Amperage draw too high.</td> <td valign="TOP" align="LEFT" class="clsCellNormal">3. With wiper arm disconnected from wiper motor output shaft check for binding between output shaft and motor output shaft housing. If binding is detected, lubricate if required. If no binding is detected, replace the wiper motor if required.</td> </tr> <tr> <td rowspan="5" align="LEFT" class="clsCellNormal">WASHER PUMP DOES NOT OPERATE</td> <td align="" class="clsCellNoBottom">1. Ineffective washer pump ground circuit.</td> <td align="" class="clsCellNoBottom">1. Test and repair open washer pump ground circuit if required.</td> </tr> <tr> <td align="" class="clsCellNoBottom">2. Ineffective washer pump feed circuit.</td> <td align="" class="clsCellNoBottom">2. Test and repair washer pump feed circuit between BCM and washer pump if required.</td> </tr> <tr> <td align="" class="clsCellNormal">3. Ineffective SCM inputs or outputs.</td> <td align="" class="clsCellNormal">3. Use a diagnostic scan tool and the appropriate diagnostic information for further SCM diagnosis.</td> </tr> <tr> <td align="" class="clsCellNormal">4. Ineffective BCM inputs or outputs.</td> <td align="" class="clsCellNormal">4. Use a diagnostic scan tool and the appropriate diagnostic information for further BCM diagnosis.</td> </tr> <tr> <td align="" class="clsCellNormal">5. Ineffective washer pump.</td> <td align="" class="clsCellNormal">5. Test and replace open or shorted washer pump if required.</td> </tr> </tbody> </table></span></p><a name="S16656774222014071100000"></a><h2 class="clsHeadOne">SPECIFICATIONS</h2><a name="S03938729292014071100000"></a><h2 class="clsHeadTwo">SPECIFICATIONS</h2> <p><span class="clsArticleTable"><a name="S039387292920140711000001"></a><table cellspacing="0" class="clsArticleTable58"> <colgroup> <col span="1" id="COL1" width="600px"> <col span="1" id="COL2" width="211px"> <col span="1" id="COL3" width="213px"> <col span="1" id="COL4" width="216px"> </colgroup> <thead> <tr class="clsTblHead"> <th colspan="4" align="CENTER" class="clsCellNormal">TORQUE SPECIFICATIONS</th> </tr> <tr class="clsTblHead"> <th align="CENTER" class="clsCellNormal">DESCRIPTION</th> <th align="CENTER" class="clsCellNormal">N.m</th> <th align="CENTER" class="clsCellNormal">Ft. Lbs.</th> <th align="CENTER" class="clsCellNormal">In. Lbs.</th> </tr> </thead> <tbody> <tr> <td align="LEFT" class="clsCellNormal">Front Wiper Arm Mounting Nuts</td> <td align="CENTER" class="clsCellNormal">20</td> <td align="CENTER" class="clsCellNormal">15</td> <td align="CENTER" class="clsCellNormal">-</td> </tr> <tr> <td align="LEFT" class="clsCellNormal">Rear Wiper Arm Mounting Nut</td> <td align="CENTER" class="clsCellNormal">9</td> <td align="CENTER" class="clsCellNormal">-</td> <td align="CENTER" class="clsCellNormal">80</td> </tr> <tr> <td align="LEFT" class="clsCellNormal">Front Wiper Module Mounting Screws</td> <td align="CENTER" class="clsCellNormal">5.5</td> <td align="CENTER" class="clsCellNormal">-</td> <td align="CENTER" class="clsCellNormal">49</td> </tr> <tr> <td align="LEFT" class="clsCellNormal">Front Wiper Motor Mounting Screws</td> <td align="CENTER" class="clsCellNormal">7.5</td> <td align="CENTER" class="clsCellNormal">-</td> <td align="CENTER" class="clsCellNormal">66</td> </tr> <tr> <td align="LEFT" class="clsCellNormal">Washer Reservoir Mounting Nuts</td> <td align="CENTER" class="clsCellNormal">7</td> <td align="CENTER" class="clsCellNormal">-</td> <td align="CENTER" class="clsCellNormal">60</td> </tr> <tr> <td align="LEFT" class="clsCellNormal">Washer Reservoir Mounting Screws</td> <td align="CENTER" class="clsCellNormal">7</td> <td align="CENTER" class="clsCellNormal">-</td> <td align="CENTER" class="clsCellNormal">60</td> </tr> </tbody> </table></span></p><a name="S25271343542014071100000"></a><h2 class="clsHeadOne">CLEANING</h2><a name="S04851225092014071100000"></a><h2 class="clsHeadTwo">FRONT WASHER SYSTEM</h2> <p><span class="clsCaution"><table> <tr> <td class="clsCautionLabel"><span>CAUTION:</span></td> <td> <p>Never introduce petroleum-based cleaners, solvents, or contaminants into the washer system. These products can rapidly deteriorate the rubber seals and hoses of the washer system, as well as the rubber squeegees of the wiper blades.</p> </td> </tr> </table></span></p> <p><span class="clsCaution"><table> <tr> <td class="clsCautionLabel"><span>CAUTION:</span></td> <td> <p>Never use compressed air to flush the washer system plumbing. Compressed air pressures are too great for the washer system plumbing components and will result in further system damage. Never use sharp instruments to clear a plugged washer nozzle or damage to the nozzle orifice and improper nozzle spray patterns will result.</p> </td> </tr> </table></span></p> <p>If the washer system is contaminated with foreign material, drain the washer reservoir by removing the washer pump/motor unit from the reservoir. Clean foreign material from the inside of the washer pump inlet filter screen and the washer reservoir using clean washer fluid, a mild detergent or a non-abrasive cleaner. Flush foreign material from the washer system plumbing by first disconnecting the washer hoses from the washer nozzles, then running the washer pump/motor to run clean washer fluid or water through the system. Plugged or restricted front washer nozzles cannot be back-flushed due to the integral check valve mechanism. If the washer nozzle obstruction cannot be cleared, replace the washer nozzle.</p><a name="S42289835402014071100000"></a><h2 class="clsHeadTwo">FRONT WIPER SYSTEM</h2> <p><span class="clsCaution"><table> <tr> <td class="clsCautionLabel"><span>CAUTION:</span></td> <td> <p>Protect the rubber squeegees of the wiper blades from any petroleum-based cleaners, solvents, or contaminants. These products can rapidly deteriorate the rubber squeegees.</p> </td> </tr> </table></span></p> <p>The squeegees of wiper blades exposed to the elements for a long time tend to lose their wiping effectiveness. Periodic cleaning of the squeegees is suggested to remove any deposits of salt or road film. The wiper blades, arms and windshield glass should only be cleaned using a sponge or soft cloth and windshield washer fluid, a mild detergent or a non-abrasive cleaner. If the wiper blades continue to leave streaks, smears, hazing or beading on the glass after thorough cleaning of the squeegees and the glass, the entire wiper blade assembly must be replaced.</p><a name="S33728394942014071100000"></a><h2 class="clsHeadTwo">REAR WASHER SYSTEM</h2> <p><span class="clsCaution"><table> <tr> <td class="clsCautionLabel"><span>CAUTION:</span></td> <td> <p>Never introduce petroleum-based cleaners, solvents or contaminants into the washer system. These products can rapidly deteriorate the rubber seals and hoses of the washer system, as well as the rubber squeegee of the wiper blade.</p> </td> </tr> </table></span></p> <p><span class="clsCaution"><table> <tr> <td class="clsCautionLabel"><span>CAUTION:</span></td> <td> <p>Never use compressed air to flush the washer system plumbing. Compressed air pressures are too great for the washer system plumbing components and will result in further system damage. Never use sharp instruments to clear a plugged washer nozzle or damage to the nozzle orifice and improper nozzle spray patterns will result.</p> </td> </tr> </table></span></p> <p>If the washer system is contaminated with foreign material, drain the washer reservoir by removing the washer pump/motor from the reservoir. Clean foreign material from the inside of the washer pump/motor inlet filter screen and the washer reservoir using clean washer fluid, a mild detergent, or a non-abrasive cleaner. Flush foreign material from the washer system plumbing by first disconnecting the washer hose from the rear washer nozzle, then running the washer pump/motor to run clean washer fluid or water through the system. A plugged or restricted rear washer nozzle cannot be back-flushed due to the integral check valve mechanism. If the rear washer nozzle obstruction cannot be cleared, replace the rear washer nozzle.</p><a name="S15496275022014071100000"></a><h2 class="clsHeadTwo">REAR WIPER SYSTEM</h2> <p><span class="clsCaution"><table> <tr> <td class="clsCautionLabel"><span>CAUTION:</span></td> <td> <p>Protect the rubber squeegee of the wiper blade from any petroleum-based cleaners, solvents or contaminants. These products can rapidly deteriorate the rubber squeegee.</p> </td> </tr> </table></span></p> <p>The squeegee of a wiper blade exposed to the elements for a long time tends to lose its wiping effectiveness. Periodic cleaning of the squeegee is suggested to remove any deposits of salt or road film. The wiper blade, arm, and liftgate glass should only be cleaned using a sponge or soft cloth and windshield washer fluid, a mild detergent, or a non-abrasive cleaner. If the wiper blade continues to leave streaks, smears, hazing, or beading on the glass after thorough cleaning of the squeegees and the glass, the entire wiper blade assembly must be replaced.</p><a name="S18234511082014071100000"></a><h2 class="clsHeadOne">INSPECTION</h2><a name="S36833753402014071100000"></a><h2 class="clsHeadTwo">FRONT WASHER SYSTEM</h2> <p>The washer system components should be inspected periodically, not just when washer performance problems are experienced. This inspection should include the following points:</p> <ol class="clsARABICNUM"> <li>Check for ice or other foreign material in the washer reservoir. If contaminated, clean and flush the washer system. Refer to <a class="clsHyperlink" href="#S25271343542014071100000">CLEANING</a>.</li> <li>Inspect the washer plumbing for pinched, leaking, deteriorated or incorrectly routed hoses and damaged or disconnected hose fittings. Replace damaged or deteriorated hoses and hose fittings. Leaking washer hoses can sometimes be repaired by cutting the hose at the leak and splicing it back together using an in-line connector fitting. Similarly, sections of deteriorated hose can be cut out and replaced by splicing in new sections of hose using in-line connector fittings. Whenever routing a washer hose or a wire harness containing a washer hose, it must be routed away from hot, sharp, or moving parts. Also, sharp bends that might pinch the washer hose must be avoided.</li> </ol><a name="S13276936402014071100000"></a><h2 class="clsHeadTwo">FRONT WIPER SYSTEM</h2> <p><span class="clsFig"><a class="clsExtGraphicLink" onclick="ajaxModalImg($(this).attr('id'))" id="GC0098560" name="S09846230592014071100000">Fig. 3: Wiper Blades And Wiper Arms</a><br><span class="clsCourtesyNote">Courtesy of CHRYSLER GROUP, LLC</span></span></p> <p>The wiper blades and wiper arms should be inspected periodically, not just when wiper performance problems are experienced. This inspection should include the following points:</p> <ol class="clsARABICNUM"> <li>Carefully inspect the wiper blades for any indications of worn or uneven edges (1), foreign material deposits (2), hardening or cracking (3), deformation or fatigue (4) or splitting (5). Inspect the wiper blade support components and the wiper arms for damage (6) or corrosion. If the wiper arms and blades are contaminated with any foreign material, clean them and the glass as required. Refer to <a class="clsHyperlink" href="#S25271343542014071100000">CLEANING</a>. If a wiper blade or arm is damaged, or if corrosion is evident, replace the affected wiper arm or blade with a new unit. Do not attempt to repair a wiper arm or blade that is damaged or corroded.</li> <li>Carefully lift the wiper blade off of the glass. Note the action of the wiper arm hinge. The wiper arm should pivot freely at the hinge, but with no lateral looseness evident. If there is any binding evident in the wiper arm hinge, or if there is evident lateral play in the wiper arm hinge, replace the wiper arm.<p><span class="clsCaution"><table> <tr> <td class="clsCautionLabel"><span>CAUTION:</span></td> <td> <p>Do not allow the wiper arm to spring back against the glass without the wiper blade in place or the glass may be damaged.</p> </td> </tr> </table></span></p> </li> <li>Once proper hinge action of the wiper arm is confirmed, check the hinge for proper spring tension. Remove the wiper blade from the wiper arm. Either place a small postal scale between the blade end of the wiper arm and the glass, or carefully lift the blade end of the arm away from the glass using a small fish scale. On vehicles with unequal wiper arm lengths, be certain that measurements on both arms are taken at a point an equal distance from their wiper arm hinge pins. Compare the scale readings between the right and left wiper arms. Replace a wiper arm if it has comparatively lower spring tension, as evidenced by a lower scale reading.</li> <li>After cleaning and inspecting the wiper components and the glass, if the wiper blade still fails to clear the glass without smearing, streaking, chattering, hazing or beading, replace the wiper blade.</li> </ol><a name="S21571711972014071100000"></a><h2 class="clsHeadTwo">REAR WASHER SYSTEM</h2> <p>The washer system components should be inspected periodically, not just when washer performance problems are experienced. This inspection should include the following points:</p> <ol class="clsARABICNUM"> <li>Check for ice or other foreign material in the washer reservoir. If contaminated, clean and flush the washer system. Refer to <a class="clsHyperlink" href="#S25271343542014071100000">CLEANING</a>.</li> <li>Inspect the washer plumbing for pinched, leaking, deteriorated, or incorrectly routed hoses and damaged or disconnected hose fittings. Replace damaged or deteriorated hoses and hose fittings. Leaking washer hoses can sometimes be repaired by cutting the hose at the leak and splicing it back together using an in-line connector fitting. Similarly, sections of deteriorated hose can be cut out and replaced by splicing in new sections of hose using in-line connector fittings. Whenever routing a washer hose or a wire harness containing a washer hose, it must be routed away from hot, sharp, or moving parts. Also, sharp bends that might pinch the washer hose must be avoided.</li> </ol><a name="S41003856312014071100000"></a><h2 class="clsHeadTwo">REAR WIPER SYSTEM</h2> <p><span class="clsFig"><a class="clsExtGraphicLink" onclick="ajaxModalImg($(this).attr('id'))" id="GC0084779" name="S29315875702014071100000">Fig. 4: Inspecting Wiper Blades</a><br><span class="clsCourtesyNote">Courtesy of CHRYSLER GROUP, LLC</span></span></p> <p>The rear wiper blade and wiper arm should be inspected periodically, not just when wiper performance problems are experienced. This inspection should include the following points:</p> <ol class="clsARABICNUM"> <li>Carefully inspect the wiper blade for any indications of worn or uneven edges (1), foreign material deposits (2), hardening or cracking (3), deformation or fatigue (4), or splitting (5). Inspect the wiper blade support components and the wiper arm for damage (6). If the wiper arm and blade are contaminated with any foreign material, clean them and the glass as required. Refer to <a class="clsHyperlink" href="#S25271343542014071100000">CLEANING</a>. If the wiper blade or arm is damaged, replace it with a new unit. Do not attempt to repair a wiper arm or blade that is damaged or corroded.</li> <li>Carefully lift the wiper blade off of the glass. Note the action of the wiper arm hinge. The wiper arm should pivot freely at the hinge, but with no lateral looseness evident. If there is any binding evident in the wiper arm hinge, or there is evident lateral play in the wiper arm hinge, replace the wiper arm.<p><span class="clsCaution"><table> <tr> <td class="clsCautionLabel"><span>CAUTION:</span></td> <td> <p>Do not allow the wiper arm to spring back against the glass without the wiper blade in place or the glass may be damaged.</p> </td> </tr> </table></span></p> </li> <li>Once proper hinge action of the wiper arm is confirmed, check the hinge for proper spring tension. The spring tension of the wiper arm should be sufficient to cause the rubber squeegee to conform to the curvature of the glass. Replace a wiper arm if it has insufficient spring tension to maintain contact between the squeegee and the glass.</li> <li>After cleaning and inspecting the wiper components and the glass, if the wiper blade still fails to clear the glass without smearing, streaking, chattering, hazing, or beading, replace the wiper blade.</li> </ol><a name="S24255198752014071100000"></a><h2 class="clsHeadOne">ARM, WIPER</h2><a name="S20531708892014071100000"></a><h2 class="clsHeadTwo">DESCRIPTION</h2><a name="S04814854782014071100000"></a><h2 class="clsHeadThree">FRONT</h2> <p><span class="clsFig"><a class="clsExtGraphicLink" onclick="ajaxModalImg($(this).attr('id'))" id="GC0144776" name="S12480023512014071100000">Fig. 5: Stamped Steel Channel, Aluminum Pivot End & Stamped Steel Strap</a><br><span class="clsCourtesyNote">Courtesy of CHRYSLER GROUP, LLC</span></span></p> <p>The front wiper arms are the rigid members located between the wiper pivots that protrude from the cowl plenum cover/grille panel near the base of the windshield and the wiper blades on the windshield glass. These wiper arms have a somewhat sculpted appearance that actually has a functional purpose. The sculpting is designed to reduce wind buffeting, which helps to reduce wind noise within the passenger compartment of the vehicle.</p> <p>These wiper arms feature an over-center hinge design that allows easy access to the windshield glass for cleaning. The wiper arm has a die cast aluminum pivot end (2) with a large, internally tapered mounting hole at one end. A molded black plastic cap snaps over the pivot end to conceal the wiper arm retaining nut and the mounting hole following wiper arm installation.</p> <p>The wide end of a tapered, stamped steel channel (1) hinges on and is secured with a hinge pin to the blade end of the wiper arm pivot end. One end of a rigid stamped steel strap (3), is riveted and crimped within the narrow end of the stamped steel channel. The tip of the wiper blade end of this strap is bent back under itself to form a small hook to cradle the pivot block of the front wiper blade. The entire wiper arm has a satin black finish applied to all of its visible surfaces.</p> <p>Concealed within the stamped steel channel is a long tension spring which is engaged with a formed wire link hooked over a metal dowel pin that passes through the underside of the pivot end. The opposite end of the spring is hooked over another metal dowel pin that passes through the underside of the steel channel.</p> <p>The driver and passenger side wiper arms are unique and are not interchangeable. A wiper arm cannot be adjusted or repaired. If damaged or ineffective, the entire wiper arm unit must be replaced.</p><a name="S28130289742014071100000"></a><h2 class="clsHeadThree">REAR</h2> <p><span class="clsFig"><a class="clsExtGraphicLink" onclick="ajaxModalImg($(this).attr('id'))" id="GC0128680" name="S20280291622014071100000">Fig. 6: Rear Wiper Arm</a><br><span class="clsCourtesyNote">Courtesy of CHRYSLER GROUP, LLC</span></span></p> <p>The rear wiper arm is the rigid member located between the rear wiper motor output shaft that protrudes through the liftgate glass above the center of the liftgate glass opening and the wiper blade on the outside of the glass. The wiper arm is constructed of molded black plastic. A hinged pivot end is also molded plastic.</p> <p>A molded black plastic nut cover (2) with two pivot pins on the back end and snap features on the end nearest the wiper blade fits over the wiper arm retaining nut to conceal the nut and mounting hole following wiper arm installation. The wiper arm hinge and tension spring are concealed on the underside of the wide end of the arm (1), while an integral latch feature (3) concealed on the underside of the narrow end of the wiper arm accepts the pivot pin of the matching molded plastic wiper blade unit.</p> <p>The rear wiper arm cannot be adjusted or repaired. If damaged or ineffective, the entire wiper arm unit must be replaced.</p><a name="S34475264162014071100000"></a><h2 class="clsHeadTwo">OPERATION</h2><a name="S05498370832014071100000"></a><h2 class="clsHeadThree">FRONT</h2> <p>The front wiper arms are designed to mechanically transmit the motion from the wiper pivots to the front wiper blades. The front wiper arm must be properly indexed to the wiper pivot in order to maintain the proper wiper blade travel on the glass. The tapered mounting hole in the wiper arm pivot end interlocks with the serrations on the tapered outer circumference of the wiper pivot shaft, allowing positive engagement and finite adjustment of this connection.</p> <p>The mounting nut locks the front wiper arm to the threaded stud of the wiper pivot shaft. The spring-loaded wiper arm hinge controls the down-force applied through the tip of the wiper arm to the front wiper blade on the glass. The hook formation on the tip of the wiper arm provides a cradle for securing and latching the wiper blade pivot block to the wiper arm.</p><a name="S39869505822014071100000"></a><h2 class="clsHeadThree">REAR</h2> <p>The rear wiper arm is designed to mechanically transmit the motion from the rear wiper motor output shaft to the rear wiper blade. The wiper arm must be properly indexed to the motor output shaft in order to maintain the proper wiper blade travel on the glass. The tapered hole in the wiper arm pivot end interlocks with the serrations on the outer circumference of the tapered motor output shaft, allowing positive engagement and finite adjustment of this connection.</p> <p>A hex nut secures the wiper arm pivot end to the threads on the rear wiper motor output shaft and the plastic cover snaps over this connection for a neat appearance. The spring-loaded wiper arm hinge controls the down-force applied through the tip of the wiper arm to the wiper blade on the glass. The latch formation on the tip of the wiper arm provides a cradle for securing and latching the wiper blade pivot pin to the wiper arm.</p><a name="S25008866622014071100000"></a><h2 class="clsHeadTwo">REMOVAL</h2><a name="S41744052262014071100000"></a><h2 class="clsHeadThree">FRONT</h2> <p><span class="clsFig"><a class="clsExtGraphicLink" onclick="ajaxModalImg($(this).attr('id'))" id="GC0159274" name="S41893658842014071100000">Fig. 7: Front Wiper Arm, Pivot Shaft, Nuts & Caps</a><br><span class="clsCourtesyNote">Courtesy of CHRYSLER GROUP, LLC</span></span></p> <ol class="clsARABICNUM"> <li>Carefully pry the plastic nut cap (1) off of the pivot end of the wiper arm (4).</li> <li>Remove the nut (2) that secures the wiper arm to the wiper pivot shaft (3).</li> <li>Lift the front wiper arm to its over-center position to hold the wiper blade off of the glass and relieve the spring tension on the wiper arm to pivot shaft connection.</li> <li>Use a slight rocking action to disengage the front wiper arm pivot end from the pivot shaft and remove the wiper arm.<p><span class="clsCaution"><table> <tr> <td class="clsCautionLabel"><span>CAUTION:</span></td> <td> <p>The use of a battery terminal puller when removing the front wiper arm is NOT recommended except as a last resort, as this may damage the front wiper arm.</p> </td> </tr> </table></span></p> <p><span class="clsFig"><a class="clsExtGraphicLink" onclick="ajaxModalImg($(this).attr('id'))" id="GC0082824" name="S18783512702014071100000">Fig. 8: Disengaging Wiper Arm From Pivot Shaft</a><br><span class="clsCourtesyNote">Courtesy of CHRYSLER GROUP, LLC</span></span></p> </li> <li>If the rocking action failed to free the wiper arm from the pivot shaft, use a suitable battery terminal puller (3) to disengage the wiper arm (1) from the pivot shaft (2).</li> <li>Remove the wiper arm pivot end from the pivot shaft.</li> </ol><a name="S20104854582014071100000"></a><h2 class="clsHeadThree">REAR</h2> <p><span class="clsFig"><a class="clsExtGraphicLink" onclick="ajaxModalImg($(this).attr('id'))" id="GC0159896" name="S09189537132014071100000">Fig. 9: Wiper Arm, Pivot Cover & Nut</a><br><span class="clsCourtesyNote">Courtesy of CHRYSLER GROUP, LLC</span></span></p> <ol class="clsARABICNUM"> <li>Unsnap and swing the molded plastic pivot cover (1) off of the pivot end of the wiper arm (2).</li> <li>Remove the nut (3) that secures the wiper arm to the rear wiper motor output shaft.<p><span class="clsCaution"><table> <tr> <td class="clsCautionLabel"><span>CAUTION:</span></td> <td> <p>The use of a battery terminal puller when removing the rear wiper arm is NOT recommended as this may damage the rear wiper arm.</p> </td> </tr> </table></span></p> </li> <li>Use a slight rocking action to disengage the rear wiper arm pivot end from the output shaft and remove the wiper arm.</li> </ol><a name="S22763570302014071100000"></a><h2 class="clsHeadTwo">INSTALLATION</h2><a name="S02025329532014071100000"></a><h2 class="clsHeadThree">FRONT</h2> <p><span class="clsFig"><a class="clsExtGraphicLink" onclick="ajaxModalImg($(this).attr('id'))" id="GC0159274" name="S04112862072014071100000">Fig. 10: Front Wiper Arm, Pivot Shaft, Nuts & Caps</a><br><span class="clsCourtesyNote">Courtesy of CHRYSLER GROUP, LLC</span></span></p> <p><span class="clsNote"><table> <tr> <td class="clsNoteLabel"><span>NOTE:</span></td> <td> <p>Be certain that the wiper motor is in the park position before attempting to install the front wiper arms. Transition the status of the ignition switch to On and move the right multifunction switch control knob to its front wiper Off position. If the wiper pivots move, wait until they stop moving, then transition the ignition switch status back to Off. The front wiper motor is now in its park position.</p> </td> </tr> </table></span></p> <ol class="clsARABICNUM"> <li>The front wiper arms must be indexed to the pivot shafts with the front wiper motor in the park position to be properly installed. Position the wiper arm pivot end onto the wiper pivot shaft so that the lower edge of the wiper blade is aligned with the wiper alignment marks located near or within the lower margin of the windshield.</li> <li>Once the wiper blade is aligned, lift the wiper arm away from the windshield slightly to relieve the spring tension on the pivot end and push the pivot end of the wiper arm (4) down firmly and evenly over the pivot shaft (3).</li> <li>Install and tighten the nut (2) that secures the wiper arm to the pivot shaft. Tighten the nut to 20 N.m (15 ft. lbs.).</li> <li>Wet the windshield glass, then operate the front wipers. Turn the wiper switch to the Off position, then check for the correct wiper arm alignment position and readjust as required.</li> <li>Reinstall the plastic cap (1) onto the wiper arm pivot end.</li> </ol><a name="S36471923942014071100000"></a><h2 class="clsHeadThree">REAR</h2> <p><span class="clsFig"><a class="clsExtGraphicLink" onclick="ajaxModalImg($(this).attr('id'))" id="GC0159896" name="S37290998932014071100000">Fig. 11: Wiper Arm, Pivot Cover & Nut</a><br><span class="clsCourtesyNote">Courtesy of CHRYSLER GROUP, LLC</span></span></p> <p><span class="clsNote"><table> <tr> <td class="clsNoteLabel"><span>NOTE:</span></td> <td> <p>Be certain that the rear wiper motor is in the park position before attempting to install the rear wiper arm. Transition the status of the ignition switch to On and move the rear wiper switch to its Off position. If the wiper motor output shaft moves, wait until it stops moving, then transition the status of the ignition switch back to Off. The wiper motor is now in its park position.</p> </td> </tr> </table></span></p> <ol class="clsARABICNUM"> <li>The rear wiper arm (2) must be indexed to the rear wiper motor output shaft with the motor in the park position to be properly installed. Position the wiper arm pivot end onto the output shaft so that the tip of the wiper blade is horizontal and parallel with the sine wave rear window defogger grid line at the bottom of the liftgate glass.</li> <li>With the rear wiper arm properly indexed, push the tapered mounting hole on the pivot end of the wiper arm down over the output shaft.</li> <li>Install and tighten the nut (3) that secures the rear wiper arm to the output shaft. Tighten the nut to 9 N.m (80 in. lbs.).</li> <li>Fold and snap the molded plastic pivot cover (1) over the nut on the pivot end of the rear wiper arm.</li> <li>Wet the liftgate glass and operate the rear wiper. Turn the rear wiper switch to the Off position, then check for correct wiper arm position and readjust as required.</li> </ol><a name="S05358638382014071100000"></a><h2 class="clsHeadOne">BLADE, WIPER</h2><a name="S13366601692014071100000"></a><h2 class="clsHeadTwo">DESCRIPTION</h2><a name="S12350349362014071100000"></a><h2 class="clsHeadThree">FRONT</h2> <p><span class="clsFig"><a class="clsExtGraphicLink" onclick="ajaxModalImg($(this).attr('id'))" id="GC0144778" name="S19619812422014071100000">Fig. 12: Blade Covers, Integral Latch & Pivot Block</a><br><span class="clsCourtesyNote">Courtesy of CHRYSLER GROUP, LLC</span></span></p> <p>Each front wiper blade is secured by an integral latch (2) and an integral pivot block (3) to the hook formation on the tip of each wiper arm, and rests on the glass near the base of the windshield when the wipers are not in operation. These wiper blades have a somewhat sculpted appearance that actually has a functional purpose. The sculpted appearance is due to molded plastic blade covers (1) securely fastened over the bridges and links of the wiper blade. This sculpting is designed to reduce wind buffeting, which helps to reduce wind noise within the passenger compartment of the vehicle.</p> <p>The wiper blade consists of the following components:</p> <ul class="clsBULLET"> <li><span class="clsEmphBOLD">Blade Covers</span> - The molded plastic blade covers shield the wiper superstructure and elements to reduce wind buffeting.</li> <li><span class="clsEmphBOLD">Element (4)</span> - The wiper element or squeegee is the resilient rubber member of the wiper blade that contacts the glass.</li> <li><span class="clsEmphBOLD">Flexor</span> - The flexor is a rigid metal component running along the length of each side of the wiper element where it is gripped by the claws of the superstructure.</li> <li><span class="clsEmphBOLD">Superstructure</span> - The superstructure includes several stamped steel bridges and links with claw formations that grip the wiper blade element. Also included in this unit is the latching, molded plastic pivot block that secures the superstructure to the wiper arm. All of the metal components of the wiper blade have a satin black finish applied.</li> </ul> <p>The passenger side wiper blades are 45.00 centimeters (17.71 inches) long. The driver side wiper blades are 65.00 centimeters (25.59 inches) long. They have non-replaceable rubber elements (squeegees). The wiper blades cannot be adjusted or repaired. If ineffective, worn or damaged the entire wiper blade unit must be replaced.</p><a name="S30937705332014071100000"></a><h2 class="clsHeadThree">REAR</h2> <p><span class="clsFig"><a class="clsExtGraphicLink" onclick="ajaxModalImg($(this).attr('id'))" id="GC0128682" name="S06629608742014071100000">Fig. 13: Rear Wiper Blade Is Secured By An Integral Pivot Pin</a><br><span class="clsCourtesyNote">Courtesy of CHRYSLER GROUP, LLC</span></span></p> <p>The rear wiper blade is secured by an integral pivot pin (2) to a receptacle at the tip of the rear wiper arm, and rests near the base of the liftgate glass when the wiper is not in operation. The rear wiper blade consists of the following components:</p> <ul class="clsBULLET"> <li><span class="clsEmphBOLD">Superstructure (1)</span> - The superstructure includes a molded black plastic bridge and plastic links with claw formations that grip the wiper blade element. Also included in this unit is the pivot pin that secures the superstructure to the wiper arm.</li> <li><span class="clsEmphBOLD">Element (3)</span> - The wiper element or squeegee is the resilient rubber member of the wiper blade that contacts the glass.</li> <li><span class="clsEmphBOLD">Flexor</span> - The flexor is a rigid metal component running along the length of each side of the wiper element where it is gripped by the claws of the superstructure.</li> </ul> <p>The rear wiper blade is 35 centimeters (13.78 inches) long with a non-replaceable element (squeegee). The wiper blade superstructure cannot be adjusted or repaired. If ineffective, worn or damaged the entire wiper blade unit must be replaced.</p><a name="S34642899282014071100000"></a><h2 class="clsHeadTwo">OPERATION</h2><a name="S42304874302014071100000"></a><h2 class="clsHeadThree">FRONT</h2> <p>The wiper blades are moved back and forth across the glass by the wiper arms when the wipers are being operated. The wiper blade superstructure is the flexible frame that grips the wiper blade element and evenly distributes the force of the spring-loaded wiper arm along the length of the element. The combination of the wiper arm force and the flexibility of the superstructure makes the element conform to and maintain proper contact with the glass, even as the blade is moved over the varied curvature that may be encountered across the glass surface.</p> <p>The wiper element flexor provides the claws of the blade superstructure with a rigid, yet flexible component on the element which can be gripped. The rubber element is designed to be stiff enough to maintain an even cleaning edge as it is drawn across the glass, yet be resilient enough to conform to the glass surface and flip from one cleaning edge to the other each time the wiper blade changes directions.</p><a name="S33154181072014071100000"></a><h2 class="clsHeadThree">REAR</h2> <p>The rear wiper blade is moved back and forth across the liftgate glass by the wiper arm when the rear wiper system is in operation. The wiper blade superstructure is the flexible frame that grips the wiper blade element and evenly distributes the force of the spring-loaded wiper arm along the length of the element. The combination of the wiper arm force and the flexibility of the superstructure makes the element conform to and maintain proper contact with the glass, even as the blade is moved over the varied curvature found across the glass surface.</p> <p>The wiper element flexor provides the claws of the blade superstructure with a rigid, yet flexible component on the element which can be gripped. The rubber element is designed to be stiff enough to maintain an even cleaning edge as it is drawn across the glass, but resilient enough to conform to the glass surface and flip from one cleaning edge to the other each time the wiper blade changes directions.</p><a name="S35388395982014071100000"></a><h2 class="clsHeadTwo">REMOVAL</h2><a name="S04738468152014071100000"></a><h2 class="clsHeadThree">FRONT</h2> <p><span class="clsCaution"><table> <tr> <td class="clsCautionLabel"><span>CAUTION:</span></td> <td> <p>Do not allow the wiper arm to spring back against the glass without the wiper blade in place or the glass may be damaged.</p> </td> </tr> </table></span></p> <p><span class="clsFig"><a class="clsExtGraphicLink" onclick="ajaxModalImg($(this).attr('id'))" id="GC0144782" name="S11258843302014071100000">Fig. 14: Tab, Wiper Arm & Element</a><br><span class="clsCourtesyNote">Courtesy of CHRYSLER GROUP, LLC</span></span></p> <p><span class="clsNote"><table> <tr> <td class="clsNoteLabel"><span>NOTE:</span></td> <td> <p>The notched end of the wiper element flexor should always be oriented towards the end of the wiper blade that is nearest to the wiper pivot.</p> </td> </tr> </table></span></p> <ol class="clsARABICNUM"> <li>Lift the wiper arm (2) to raise the wiper blade and element (3) off of the glass, until the wiper arm hinge is in its over-center position.</li> <li>To remove the blade from the arm, lift or gently pry the latch release tab (1) located just in front of the pivot block at the tip of the arm upward until it stands perpendicular to the wiper arm.</li> <li>Rotate the lower end of the blade slightly downward (toward the wiper element and away from the wiper arm), then slide the blade away from the tip towards the pivot end of the arm far enough to disengage the pivot block from the hook formation on the end of the arm.</li> <li>Extract the hook formation on the tip of the wiper arm through the opening in the wiper blade superstructure between the latch and the pivot block.</li> <li>Gently lower the tip of the wiper arm onto the glass.</li> </ol><a name="S04887307242014071100000"></a><h2 class="clsHeadThree">REAR</h2> <p><span class="clsFig"><a class="clsExtGraphicLink" onclick="ajaxModalImg($(this).attr('id'))" id="GC0159489" name="S12964009452014071100000">Fig. 15: Rear Wiper Arm & Cover</a><br><span class="clsCourtesyNote">Courtesy of CHRYSLER GROUP, LLC</span></span></p> <ol class="clsARABICNUM"> <li>Lift the rear wiper arm pivot cover (1) upward to allow the rear wiper blade to be raised off of the glass.<p><span class="clsNote"><table> <tr> <td class="clsNoteLabel"><span>NOTE:</span></td> <td> <p>The rear wiper arm cannot be raised to its over-center hinge position unless the pivot cover is raised first.</p> </td> </tr> </table></span></p> </li> <li>Lift the rear wiper arm (2) to its over-center hinge position to raise the wiper blade and element off of the liftgate glass.<p><span class="clsFig"><a class="clsExtGraphicLink" onclick="ajaxModalImg($(this).attr('id'))" id="GC0159378" name="S10459021322014071100000">Fig. 16: Wiper Blade, Wiper Arm, Pivot Pin & Receptacle</a><br><span class="clsCourtesyNote">Courtesy of CHRYSLER GROUP, LLC</span></span></p> </li> <li>To remove the wiper blade (3) from the wiper arm (1), grasp the end of the blade nearest to the motor output shaft, then over-rotate it out from under the arm and past its stop far enough to unsnap the blade pivot pin (2) from the receptacle (4) on the end of the arm.</li> <li>Gently lower the tip of the wiper arm onto the glass.</li> </ol><a name="S41943022172014071100000"></a><h2 class="clsHeadTwo">INSTALLATION</h2><a name="S33019001152014071100000"></a><h2 class="clsHeadThree">FRONT</h2> <p><span class="clsCaution"><table> <tr> <td class="clsCautionLabel"><span>CAUTION:</span></td> <td> <p>Do not allow the wiper arm to spring back against the glass without the wiper blade in place or the glass may be damaged.</p> </td> </tr> </table></span></p> <p><span class="clsFig"><a class="clsExtGraphicLink" onclick="ajaxModalImg($(this).attr('id'))" id="GC0144782" name="S14061367202014071100000">Fig. 17: Tab, Wiper Arm & Element</a><br><span class="clsCourtesyNote">Courtesy of CHRYSLER GROUP, LLC</span></span></p> <p><span class="clsNote"><table> <tr> <td class="clsNoteLabel"><span>NOTE:</span></td> <td> <p>The notched end of the wiper element flexor should always be oriented towards the end of the wiper blade that is nearest to the wiper pivot.</p> </td> </tr> </table></span></p> <ol class="clsARABICNUM"> <li>Lift the wiper arm (2) off of the windshield glass, until the wiper arm hinge is in its over-center position.</li> <li>Position the wiper blade and element unit (3) near the hook formation on the tip of the arm with the notched end of the wiper element flexor oriented towards the end of the wiper arm that is nearest to the wiper pivot.</li> <li>Insert the hook formation on the tip of the arm through the opening in the blade superstructure between the latch (1) and the pivot block far enough to engage the pivot block into the hook.</li> <li>Slide the pivot block up into the hook formation on the tip of the wiper arm until it is fully engaged.</li> <li>Rotate the latch release tab down into the blade until it snaps into its locked position. Latch engagement will be accompanied by an audible click.</li> <li>Gently lower the wiper blade and element onto the glass.</li> </ol><a name="S10896159142014071100000"></a><h2 class="clsHeadThree">REAR</h2> <p><span class="clsFig"><a class="clsExtGraphicLink" onclick="ajaxModalImg($(this).attr('id'))" id="GC0159489" name="S13107999042014071100000">Fig. 18: Rear Wiper Arm & Cover</a><br><span class="clsCourtesyNote">Courtesy of CHRYSLER GROUP, LLC</span></span></p> <ol class="clsARABICNUM"> <li>Lift the rear wiper arm pivot cap (1) upward to allow the rear wiper arm to be raised off of the glass.<p><span class="clsNote"><table> <tr> <td class="clsNoteLabel"><span>NOTE:</span></td> <td> <p>The rear wiper arm cannot be raised to its over-center hinge position unless the pivot cover is raised first.</p> </td> </tr> </table></span></p> </li> <li>Lift the rear wiper arm (2) to its over-center hinge position and off of the liftgate glass.<p><span class="clsFig"><a class="clsExtGraphicLink" onclick="ajaxModalImg($(this).attr('id'))" id="GC0159378" name="S12524548132014071100000">Fig. 19: Wiper Blade, Wiper Arm, Pivot Pin & Receptacle</a><br><span class="clsCourtesyNote">Courtesy of CHRYSLER GROUP, LLC</span></span></p> </li> <li>Position the rear wiper blade (3) with the pivot pin (2) aligned with the opening of the receptacle (4) on the tip of the wiper arm (1).</li> <li>Using hand pressure, press the wiper blade pivot pin firmly and evenly into the wiper arm receptacle until it snaps into place.</li> <li>Lower the wiper blade onto the glass and snap the pivot cover back into place.</li> </ol><a name="S11706623312014071100000"></a><h2 class="clsHeadOne">CHECK VALVE, WASHER</h2><a name="S40456925732014071100000"></a><h2 class="clsHeadTwo">DESCRIPTION</h2><a name="S39881005932014071100000"></a><h2 class="clsHeadThree">DESCRIPTION</h2> <p>Diaphragm-type washer system check valves are standard equipment in this vehicle. The check valves for the washer system are integral to their respective front and rear washer nozzles. Refer to <a class="clsHyperlink" href="#S41868405472014071100000">NOZZLE, WASHER, DESCRIPTION</a>.</p><a name="S39644545332014071100000"></a><h2 class="clsHeadTwo">OPERATION</h2><a name="S12853334952014071100000"></a><h2 class="clsHeadThree">OPERATION</h2> <p>Diaphragm-type washer system check valves are standard equipment in this vehicle. The check valves for the washer system are integral to their respective front and rear washer nozzles. Refer to <a class="clsHyperlink" href="#S22029652422014071100000">NOZZLE, WASHER, OPERATION</a>.</p><a name="S25909571022014071100000"></a><h2 class="clsHeadOne">HOSES AND TUBES, WASHER</h2><a name="S26688711462014071100000"></a><h2 class="clsHeadTwo">DESCRIPTION</h2><a name="S03967786472014071100000"></a><h2 class="clsHeadThree">FRONT</h2> <p><span class="clsFig"><a class="clsExtGraphicLink" onclick="ajaxModalImg($(this).attr('id'))" id="GC0159928" name="S41620324062014071100000">Fig. 20: Front Washer Plumbing, Rear Washer Plumbing, Hood Plumbing & Body Plumbing</a><br><span class="clsCourtesyNote">Courtesy of CHRYSLER GROUP, LLC</span></span></p> <p>The reservoir front washer plumbing (4) consists of small diameter rubber hose or hard plastic tubing that is routed along with the reservoir rear washer plumbing (1) from the washer reservoir located on the left outboard Front End Module (FEM) hydroform ahead of the left front wheel housing. The plumbing is attached to its respective front or rear barbed outlet nipple of the washer pump/motor unit near the bottom of the reservoir, then routed through dedicated troughs integral to the reservoir to the left front fender load beam.</p> <p>Plastic push-in type retainers secure the plumbing to the underside and the outboard side of the load beam. The front and rear plumbing are then connected by molded plastic quick-connect fittings above the left front wheel house. The front plumbing is connected to the hood plumbing (2). The rear plumbing is connected to the body plumbing (3), which is routed through a grommet and a hole in the dash panel into the passenger compartment.</p> <p><span class="clsFig"><a class="clsExtGraphicLink" onclick="ajaxModalImg($(this).attr('id'))" id="GC0159585" name="S09588099562014071100000">Fig. 21: Hood Plumbing, Hood Panel & Front Washer Nozzle</a><br><span class="clsCourtesyNote">Courtesy of CHRYSLER GROUP, LLC</span></span></p> <p>The hood plumbing (3) is routed from the load beam to the left hood hinge lower bracket, then to the left hood hinge upper bracket to the hood panel (1) and the inner hood reinforcement. The plumbing is then connected by molded rubber fittings to the barbed nipple of each front washer nozzle (2). The hood plumbing is also secured by plastic push-in type retainers to the load beam, the hood hinge and the inner hood reinforcement.</p> <p>Washer hose or tube is available for service only as roll stock, which must then be cut to length. The molded plastic washer hose fittings and routing clips cannot be repaired. If these fittings or clips are ineffective or damaged, they must be replaced.</p><a name="S12232775262014071100000"></a><h2 class="clsHeadThree">HEADLAMP</h2> <p>The headlamp washer system plumbing consists of a large diameter high pressure rubber supply line that is routed from the outlet nipple of the headlamp washer pump/motor unit on the washer reservoir to one barbed nipple of a wye fitting behind the center of the front fascia. The other two barbed nipples of the wye fitting are connected to two short lengths of supply line that each terminate at a headlamp washer nozzle behind the fascia and below the two front lamp units. The supply line connections at the nozzles and at the headlamp washer pump are secured using molded plastic quick-connect fittings.</p> <p>Washer hose or tube is available for service only as roll stock, which must then be cut to length. The molded plastic washer plumbing fittings and routing clips cannot be repaired. If these fittings or clips are ineffective or damaged, they must be replaced.</p><a name="S39294231402014071100000"></a><h2 class="clsHeadThree">REAR</h2> <p><span class="clsFig"><a class="clsExtGraphicLink" onclick="ajaxModalImg($(this).attr('id'))" id="GC0159301" name="S23314912872014071100000">Fig. 22: Rear Washer Plumbing</a><br><span class="clsCourtesyNote">Courtesy of CHRYSLER GROUP, LLC</span></span></p> <p>The reservoir rear washer plumbing consists of a small diameter rubber hose or hard plastic tubing that is routed along with the reservoir front washer plumbing from the washer reservoir under the left front fender ahead of the left front wheel house to the outboard side of the left front fender load beam. The plumbing is attached to its respective front or rear barbed outlet nipple of the washer pump/motor unit near the bottom of the reservoir. The plumbing is then secured by plastic push-in type retainers to the load beam.</p> <p>The reservoir rear washer plumbing is connected by a molded plastic quick-connect fitting to the body rear washer plumbing above the left front wheel house. The body rear washer plumbing then passes from the engine compartment through a hole with a rubber grommet in the dash panel near the belt line to the left cowl side area within the passenger compartment.</p> <p>The body rear washer plumbing (5) is routed up the inner left A-pillar (6), where it is connected by a molded plastic quick-connect fitting to the headliner rear washer plumbing (3). The plumbing is secured by plastic push-in type retainers (2) to the inner A-pillar. The headliner rear washer hose is secured to the headliner (1) substrate and routed along with the antenna wiring (4) toward the back of the vehicle.</p> <p><span class="clsFig"><a class="clsExtGraphicLink" onclick="ajaxModalImg($(this).attr('id'))" id="GC0159696" name="S02099186642014071100000">Fig. 23: Headliner, Rear Washer Plumbing & Upper Liftgate Opening Header</a><br><span class="clsCourtesyNote">Courtesy of CHRYSLER GROUP, LLC</span></span></p> <p>Above the headliner (3) at the back of the vehicle the headliner rear washer plumbing (4) is connected to the liftgate rear washer plumbing (1) by another molded plastic quick-connect fitting. The liftgate rear washer plumbing is routed along with the liftgate wire harness through a clearance hole in the upper liftgate opening header (2) and rubber grommets in the upper liftgate opening trough and the liftgate inner and outer panels to the rear spoiler. The hose is secured to routing clips integral to the Center High Mounted Stop Lamp (CHMSL) housing within the spoiler to the barbed quick-connect nipple of the rear washer nozzle within the liftgate spoiler.</p> <p>Washer hose or tube is available for service only as roll stock, which must then be cut to length. Portions of the rear washer plumbing is integral to the headliner. The molded plastic washer hose fittings and routing clips cannot be repaired. If these fittings or clips are ineffective or damaged, they must be replaced.</p><a name="S03924477242014071100000"></a><h2 class="clsHeadTwo">OPERATION</h2><a name="S17376018302014071100000"></a><h2 class="clsHeadThree">FRONT</h2> <p>Washer fluid in the washer reservoir is pressurized and fed by the washer pump/motor unit through the front washer system plumbing and fittings to the two front washer nozzles. Whenever routing the washer plumbing or a wire harness containing washer plumbing, it must be routed away from hot, sharp, or moving parts; and, sharp bends that might pinch the plumbing must be avoided.</p><a name="S05157065262014071100000"></a><h2 class="clsHeadThree">HEADLAMP</h2> <p>Washer fluid in the washer reservoir is pressurized and fed by the headlamp washer pump/motor unit through the headlamp washer system plumbing and fittings to the two telescopic headlamp washer nozzles. Whenever routing the washer plumbing, it must be routed away from hot, sharp, or moving parts; and, sharp bends that might pinch the plumbing must be avoided.</p><a name="S28230722742014071100000"></a><h2 class="clsHeadThree">REAR</h2> <p>Washer fluid in the washer reservoir is pressurized and fed by the washer pump/motor unit through the rear washer system plumbing and fittings to the rear washer nozzle. Whenever routing the washer plumbing or a wire harness containing washer plumbing, it must be routed away from hot, sharp or moving parts; and, any sharp bends that might pinch the plumbing must be avoided.</p><a name="S03089698662014071100000"></a><h2 class="clsHeadTwo">STANDARD PROCEDURE</h2><a name="S28556334472014071100000"></a><h2 class="clsHeadThree">DISCONNECTING HIGH PRESSURE WASHER PLUMBING QUICK-CONNECT FITTINGS</h2> <p><span class="clsFig"><a class="clsExtGraphicLink" onclick="ajaxModalImg($(this).attr('id'))" id="GC0158474" name="S08840732792014071100000">Fig. 24: Disconnecting High Pressure Washer Plumbing Quick-Connect Fittings</a><br><span class="clsCourtesyNote">Courtesy of CHRYSLER GROUP, LLC</span></span></p> <p>Molded plastic quick-connect fittings join sections of the high pressure headlamp washer plumbing. To disconnect this fitting:</p> <ol class="clsARABICNUM"> <li>Push the molded plastic female half of the quick-connect fitting toward the male half quick-connect nipple of the headlamp washer pump, headlamp washer nozzle or other plumbing fitting.</li> <li>While still pushing the two halves of the connector toward each other, squeeze or pinch the ribbed retainers on each side of the female half of the quick-connect between your thumb and forefinger.</li> <li>Finally, pull the female half of the quick-connect fitting straight back from the male half quick-connect nipple to disconnect.<p><span class="clsNote"><table> <tr> <td class="clsNoteLabel"><span>NOTE:</span></td> <td> <p>When reconnecting the quick-connect fitting, align the female half of the fitting to the male half of the fitting. Do <span class="clsEmphBOLD">not</span> attempt to reconnect using an angled approach. Push the two halves together until an audible click is heard.</p> </td> </tr> </table></span></p> </li> </ol><a name="S07165403902014071100000"></a><h2 class="clsHeadThree">DISCONNECTING LOW PRESSURE WASHER PLUMBING QUICK-CONNECT FITTINGS</h2> <p><span class="clsFig"><a class="clsExtGraphicLink" onclick="ajaxModalImg($(this).attr('id'))" id="GC0144839" name="S00845052332014071100000">Fig. 25: Molded Plastic Quick-Connect & Washer Hose Tubes</a><br><span class="clsCourtesyNote">Courtesy of CHRYSLER GROUP, LLC</span></span></p> <p>Molded plastic quick-connect fittings join sections of the low pressure front and rear washer plumbing. To disconnect this fitting:</p> <ol class="clsARABICNUM"> <li>Squeeze the two solid sides (not the open sides) of the female half of the quick-connect fitting at the outer edge.</li> <li>While still squeezing the female half of the fitting, pull the two sections of the washer plumbing away from each other.</li> </ol><a name="S26290044982014071100000"></a><h2 class="clsHeadThree">DISCONNECTING REAR WASHER NOZZLE QUICK-CONNECT FITTING</h2> <p><span class="clsFig"><a class="clsExtGraphicLink" onclick="ajaxModalImg($(this).attr('id'))" id="GC0159272" name="S03960679082014071100000">Fig. 26: Rear Washer Nozzle Quick-Connect Fitting</a><br><span class="clsCourtesyNote">Courtesy of CHRYSLER GROUP, LLC</span></span></p> <p>A molded plastic quick-connect fitting (2) joins the rear washer nozzle to the rear washer hose (3). To disconnect this fitting:</p> <ol class="clsARABICNUM"> <li>Spread apart the two ends of the quick-connect fitting retention collar (1) far enough to release the quick-connect nipple fitting of the rear washer nozzle.</li> <li>With the quick-connect nipple fitting of the rear washer nozzle released, pull the nozzle and the rear washer hose away from each other to disconnect them.<p><span class="clsNote"><table> <tr> <td class="clsNoteLabel"><span>NOTE:</span></td> <td> <p>When reconnecting the quick-connect fitting, align the female half of the fitting to the male half of the fitting. Do <span class="clsEmphBOLD">not</span> attempt to reconnect using an angled approach. Push the two halves together until an audible click is heard.</p> </td> </tr> </table></span></p> </li> </ol><a name="S05905199102014071100000"></a><h2 class="clsHeadOne">LINKAGE, WIPER ARM</h2><a name="S42725911232014071100000"></a><h2 class="clsHeadTwo">DESCRIPTION</h2><a name="S04769540932014071100000"></a><h2 class="clsHeadThree">DESCRIPTION</h2> <p><span class="clsFig"><a class="clsExtGraphicLink" onclick="ajaxModalImg($(this).attr('id'))" id="GC0155851" name="S18731060952014071100000">Fig. 27: Wiper Arm Linkage Components</a><br><span class="clsCourtesyNote">Courtesy of CHRYSLER GROUP, LLC</span></span></p> <p>The wiper linkage module is secured within the cowl plenum panel beneath the cowl plenum cover/grille panel. The ends of the wiper pivot shafts protrude through dedicated openings in the cowl plenum cover/grille panel to drive the wiper arms and blades and are the only visible components of the wiper linkage module.</p> <p>The wiper linkage module consists of the following major components:</p> <ul class="clsBULLET"> <li><span class="clsEmphBOLD">Bracket</span> - The wiper linkage module bracket (2) consists of two tubular members that extend from opposite sides of a die cast center section that serves as the wiper motor mount. Each tubular member has a die cast pivot bracket formation secured at the outboard end where the wiper pivots are secured. The wiper linkage module bracket is secured within the cowl plenum by two screws through two rubber insulators (1).</li> <li><span class="clsEmphBOLD">Crank Arm</span> - The wiper motor crank arm is a stamped steel unit with a slotted hole on the driven end that is secured to the wiper motor output shaft with a nut, and has a ball stud secured to the drive end.</li> <li><span class="clsEmphBOLD">Linkage</span> - A stamped steel drive link (5) connects the wiper motor crank arm to the left wiper pivot lever arm. A stamped steel connector link (4) connects the left wiper pivot lever arm to the right wiper pivot lever arm. Each link has a plastic socket-type bushing on each end. The bushing on the pivot end of each link is snap-fit over a ball stud on the crank arm or the pivot lever arm.</li> <li><span class="clsEmphBOLD">Motor</span> - The wiper motor (3) is secured by a bracket integral to the motor transmission housing with two screws and nuts near the center of the wiper linkage module bracket. A knob-like rubber insulator (6) on a stud integral to the motor transmission housing is engaged in a slot in a stamped bracket on the cowl plenum panel. The two-speed permanent magnet wiper motor features an integral transmission, an internal park switch and an internal automatic resetting circuit breaker. An integral connector receptacle connects the motor to the vehicle electrical system.</li> <li><span class="clsEmphBOLD">Pivots</span> - The two front wiper pivots (7) are secured to the ends of the wiper module bracket. The lever arm that extends from the lower end of the left pivot shaft has two ball studs that are engaged with the bushings of the drive and connector links. The lever arm of the right pivot shaft has a single ball stud that is engaged with the bushing of the connector link. The upper end of each pivot shaft where the wiper arms will be fastened each is tapered and serrated with a threaded stud formation at the tip.</li> </ul> <p>The wiper motor and crank arm unit is available for separate service replacement. Any other component of the wiper linkage module cannot be adjusted or repaired. If any component of the module other than the motor is ineffective or damaged, the entire wiper linkage module unit must be replaced.</p><a name="S09304515862014071100000"></a><h2 class="clsHeadTwo">OPERATION</h2><a name="S23195985302014071100000"></a><h2 class="clsHeadThree">OPERATION</h2> <p>The wiper linkage module operation is controlled by the battery current inputs received by the wiper motor through the Body Control Module (BCM). The wiper motor speed is controlled by current flow to either the low speed or the high speed set of brushes. The park switch is a single pole, single throw, momentary switch within the wiper motor that is mechanically actuated by the wiper motor transmission components. The park switch alternately closes the wiper park switch sense circuit to ground or to battery current, depending upon the position of the wipers on the glass. This feature allows the motor to complete its current wipe cycle after the wiper system has been turned Off, and to park the wiper blades in the lowest portion of the wipe pattern. The automatic resetting circuit breaker protects the motor from overloads.</p> <p>The wiper motor crank arm, the two wiper linkage members and the two wiper pivots mechanically convert the rotary output of the wiper motor to the back and forth wiping motion of the wiper arms and blades on the glass.</p> <p>The hard wired inputs and outputs of the wiper motor may be diagnosed using conventional diagnostic tools and procedures. Refer to the appropriate wiring information. However, conventional diagnostic methods will not prove conclusive in the diagnosis of the wiper motor or the electronic controls and communication between other modules and devices that provide some features of the wiper and washer system. The most reliable, efficient and accurate means to diagnose the wiper motor, the BCM or the electronic controls and communication related to wiper motor operation requires the use of a diagnostic scan tool. Refer to <a class="clsExtHyperlink" id="A00641437_S41615554032014071100000">DIAGNOSIS AND TESTING</a> .</p><a name="S19506094222014071100000"></a><h2 class="clsHeadTwo">REMOVAL</h2><a name="S16316003682014071100000"></a><h2 class="clsHeadThree">REMOVAL</h2> <p><span class="clsFig"><a class="clsExtGraphicLink" onclick="ajaxModalImg($(this).attr('id'))" id="GC0160134" name="S22764540862014071100000">Fig. 28: Front Wiper Module, Brackets & Fasteners</a><br><span class="clsCourtesyNote">Courtesy of CHRYSLER GROUP, LLC</span></span></p> <ol class="clsARABICNUM"> <li>Disconnect and isolate the negative cable from the battery.</li> <li>Remove both front wiper arms from the wiper pivots. Refer to <a class="clsHyperlink" href="#S25008866622014071100000">ARM, WIPER, REMOVAL</a>.</li> <li>Remove the cowl plenum cover/grille panel from over the front wiper module.</li> <li>Disconnect the wire harness (2) connector from the connector receptacle for the front wiper motor.</li> <li>Remove the two screws that secure the ends of the front wiper module (1) bracket to the stamped brackets (3 and 5) within the cowl plenum.</li> <li>Pull the front wiper module inboard far enough to disengage the knob-like rubber isolator from the slotted bracket (4) on the rearward wall of the cowl plenum.</li> <li>Remove the front wiper module from the cowl plenum as a unit.</li> </ol><a name="S20676768892014071100000"></a><h2 class="clsHeadTwo">INSTALLATION</h2><a name="S07466797842014071100000"></a><h2 class="clsHeadThree">INSTALLATION</h2> <p><span class="clsFig"><a class="clsExtGraphicLink" onclick="ajaxModalImg($(this).attr('id'))" id="GC0160134" name="S40905898422014071100000">Fig. 29: Front Wiper Module, Brackets & Fasteners</a><br><span class="clsCourtesyNote">Courtesy of CHRYSLER GROUP, LLC</span></span></p> <p><span class="clsNote"><table> <tr> <td class="clsNoteLabel"><span>NOTE:</span></td> <td> <p>The wiper motor can be removed from the wiper linkage module and is serviced independently from the remainder of the wiper linkage module for this vehicle. Refer to <a class="clsHyperlink" href="#S01456571902014071100000">MOTOR, WIPER, REMOVAL</a>.</p> </td> </tr> </table></span></p> <ol class="clsARABICNUM"> <li>Position the wiper linkage module (1) to the cowl as a unit.</li> <li>Position the knob-like rubber isolator to the slotted bracket (4) on the rear wall of the cowl plenum panel and pull the module outboard far enough to seat the isolator into the bracket.</li> <li>Starting on the outboard side, install and tighten the two screws that secure the wiper linkage module to the stamped brackets (3 and 5) within the cowl plenum. Tighten the screws to 5.5 N.m (49 in. lbs.).</li> <li>Reconnect the wire harness connector (2) to the connector receptacle for the wiper motor. Be certain that the connector is fully engaged and locked.</li> <li>Reinstall the cowl plenum cover/grille panel over the wiper linkage module. Refer to <a class="clsExtHyperlink" id="A00641412_S32759382262014071100000">COVER, COWL PANEL, INSTALLATION</a> .</li> <li>Reinstall both wiper arms onto the wiper pivots. Refer to <a class="clsHyperlink" href="#S22763570302014071100000">ARM, WIPER, INSTALLATION</a>.</li> <li>Reconnect the negative cable to the battery.</li> </ol><a name="S07080675922014071100000"></a><h2 class="clsHeadOne">MODULE, LIGHT RAIN SENSOR</h2><a name="S35028870002014071100000"></a><h2 class="clsHeadTwo">DESCRIPTION</h2><a name="S21705022132014071100000"></a><h2 class="clsHeadThree">DESCRIPTION</h2> <p><span class="clsFig"><a class="clsExtGraphicLink" onclick="ajaxModalImg($(this).attr('id'))" id="GC0155789" name="S12521536242014071100000">Fig. 30: Light Rain Sensor Module Components</a><br><span class="clsCourtesyNote">Courtesy of CHRYSLER GROUP, LLC</span></span></p> <p>The Light Rain Sensor Module (LRSM) (1) is the primary component of the automatic wiper system. The LRSM is also capable of performing an ambient light sensor function; therefore, it is alternately referred to as the Rain Light Sensor Module (RLSM), the Light Sensor Module (LSM) or the Rain Sensor Module (RSM). The LRSM is located on the inside of the windshield glass just below and to the right of the inside rear view mirror mounting button. The LRSM is concealed from view within the vehicle interior by a molded plastic inside rear view mirror bracket trim cover that fits over the top of the LRSM housing and the LRSM mounting bracket, but the LRSM is visible through the windshield glass from the exterior of the vehicle.</p> <p>The molded black plastic LRSM housing has an integral connector receptacle (2) with three terminal pins. These terminal pins connect the LRSM to the vehicle electrical system through a dedicated take out and connector of the overhead wire harness that extends from above the headliner. The windshield side of the housing is filled with a clear, silicone gelatin (also known as SilGel) adhesive membrane pad (3), which serves as an optical coupler between the sensor and the inside of the windshield glass. A spring steel retaining strap or clip extends forward on each side of the housing to latch the LRSM to a molded black plastic mounting bracket, which is permanently bonded to the inside of the windshield glass.</p> <p>Concealed and protected within the LRSM housing is the electronic circuitry of the module, which includes an InfraRed (IR) diode and photocell based light and rain sensors, control electronics and Local Interface Network (LIN) data bus communication management hardware. The LRSM is a LIN slave node and communicates over a single LIN bus circuit with the Body Control Module (BCM). The BCM is a LIN master node and a gateway to the Controller Area Network (CAN) data bus. The BCM controls the exchange of electronic messages back and forth between the LRSM and other electronic modules in the vehicle, as well as with a diagnostic scan tool connected to the Data Link Connector (DLC).</p> <p>The LRSM cannot be adjusted or repaired. If ineffective or damaged, the entire module must be replaced. The silicone gelatin adhesive membrane pad is available for separate service replacement. The LRSM mounting bracket is serviced only as a unit with the windshield glass.</p><a name="S04944049232014071100000"></a><h2 class="clsHeadTwo">OPERATION</h2><a name="S23423272732014071100000"></a><h2 class="clsHeadThree">OPERATION</h2> <p>The Light Rain Sensor Module (LRSM) (1) (also known as the Rain Light Sensor Module/RLSM, the Light Sensor Module/LSM or the Rain Sensor Module/RSM) senses moisture and ambient light levels on the outside of the windshield glass and sends electronic messages to the Body Control Module (BCM) over the Local Interface Network (LIN) data bus to give an indication of the monitored conditions. The BCM relays messages back and forth between the LRSM and other electronic modules in the vehicle.</p> <p>For the rain sensor function, InfraRed (IR) diodes within the LRSM generate infrared light beams that are aimed by the optics of the sensor through the windshield glass, while an IR photo diode monitors the infrared light reflected back from the windshield glass. When sufficient moisture accumulates within the wipe pattern on the windshield glass, less of the infrared light is reflected back and the sensor detects a change in the monitored infrared light intensity. For the light sensor function, an IR photo diode within the sensor monitors the intensity of the ambient infrared light received through the windshield glass and the sensor optics.</p> <p>The internal programming of the LRSM sends the appropriate electronic <span class="clsEmphBOLD">wipe command</span> messages to the BCM over the LIN data bus. The BCM then responds by activating or deactivating the wiper system. Similarly, the LRSM provides electronic <span class="clsEmphBOLD">ambient light level</span> messages to the BCM, and the BCM relays these messages to other electronic modules in the vehicle.</p> <p>The Steering Control Module (SCM) sends electronic <span class="clsEmphBOLD">wiper switch status</span> and <span class="clsEmphBOLD">automatic wipe sensitivity level</span> messages over the Controller Area Network (CAN) data bus to the BCM based upon the driver-selected settings of the control knob on the control stalk of the right multifunction switch. The higher the selected wipe sensitivity setting the more sensitive the LRSM is to the accumulated moisture on the windshield glass, and the more frequently the LRSM will send <span class="clsEmphBOLD">wipe commands</span> to the BCM to operate the wiper system. The BCM also monitors electronic <span class="clsEmphBOLD">automatic display brightness level</span> messages based upon the driver-selected settings of the Electronic Vehicle Information Center (EVIC) as well as electronic messages from other electronic modules in the vehicle received over the CAN data bus, then relays the messages to the LRSM over the LIN bus.</p> <p>The LRSM operates on battery current received through a fused ignition output (run/accessory) circuit. The LRSM has a path to ground at all times through a take out of the body wire harness with an eyelet terminal that is secured to the body sheet metal. Therefore, the LRSM is operational only when the ignition switch status is On or Accessory.</p> <p>If the BCM receives an electronic status message from the LRSM indicating a sensor failure condition, a <span class="clsEmphBOLD">Rain Sensor Failure</span> message should be displayed by the Instrument Cluster (IC) (also known as the Instrument Panel Cluster/IPC). It is important to note that the default operation of the automatic wiper system is continuous wipe On, while the default operation for automatic lighting is On. Therefore, if no command message is received by the BCM from the LRSM for more than about five seconds when the Automatic wipe mode is selected, the wipers will default to Low Speed or High Speed continuous wipe operation. Likewise, if no command message is received by the BCM from the LRSM when the Automatic lighting mode is selected, the exterior lighting will default to On. The BCM must be properly configured for the automatic wipers and automatic lighting options in order for these systems to function.</p> <p>The hard wired circuits of the LRSM may be diagnosed using conventional diagnostic tools and procedures. Refer to the appropriate wiring information. However, conventional diagnostic methods will not prove conclusive in the diagnosis of the LRSM or the electronic controls and communication between other modules and devices that provide some features of the automatic wiper and automatic lighting systems. The most reliable, efficient and accurate means to diagnose the LRSM or the electronic controls and communication related to LRSM operation requires the use of a diagnostic scan tool. Refer to the appropriate diagnostic information.</p><a name="S20630721382014071100000"></a><h2 class="clsHeadTwo">STANDARD PROCEDURE</h2><a name="S14111892372014071100000"></a><h2 class="clsHeadThree">PROTECTIVE CAP REMOVAL</h2> <p><span class="clsFig"><a class="clsExtGraphicLink" onclick="ajaxModalImg($(this).attr('id'))" id="GC0156442" name="S28006710852014071100000">Fig. 31: Protective Cap, Adhesive Membrane, LRSM & Latches</a><br><span class="clsCourtesyNote">Courtesy of CHRYSLER GROUP, LLC</span></span></p> <p><span class="clsCaution"><table> <tr> <td class="clsCautionLabel"><span>CAUTION:</span></td> <td> <p>The Light Rain Sensor Module (LRSM) (3) is equipped with a clear, silicone gelatin (SilGel) adhesive membrane (2) that serves as an optical coupler between the sensor and the windshield glass. Extreme care must be exercised to protect this membrane from contamination before it is installed in the vehicle. The LRSM should always be serviced only in a dust-free environment. Do not touch the membrane with your fingers or tools. The membrane should only come into contact with the clean and dry inside surface of the glass within the mounting bracket bonded to the windshield. The service replacement LRSM is shipped with a clear plastic protective cap (1) installed and secured to the outer circumference of the LRSM by two latch features (4). This protective cap should not be removed until immediately before the LRSM is to be installed using the following procedure.</p> </td> </tr> </table></span></p> <p><span class="clsFig"><a class="clsExtGraphicLink" onclick="ajaxModalImg($(this).attr('id'))" id="GC0155824" name="S30115895382014071100000">Fig. 32: Tabs, Protective Cap & LRSM</a><br><span class="clsCourtesyNote">Courtesy of CHRYSLER GROUP, LLC</span></span></p> <ol class="clsARABICNUM"> <li>Firmly grasp the LRSM (3) by the outer circumference from the side opposite the SilGel membrane pad.</li> <li>Firmly grasp the protective shipping cap (2) of the LRSM by the two latch release tabs (1) between your thumb and index finger from the SilGel membrane pad side of the module.</li> <li>Firmly pinch the two latch release tabs together between your thumb and index finger far enough to release the two latch features of the protective cap from the outer circumference of the LRSM.</li> <li>Pull the protective cap off of the LRSM.</li> <li>Install the LRSM into the mounting bracket bonded onto the windshield as instructed in the Installation procedure. Refer to <a class="clsHyperlink" href="#S07282664562014071100000">MODULE, LIGHT RAIN SENSOR, INSTALLATION</a>.</li> </ol><a name="S19606283672014071100000"></a><h2 class="clsHeadThree">SILICONE GELATIN PAD REPLACEMENT</h2> <p><span class="clsFig"><a class="clsExtGraphicLink" onclick="ajaxModalImg($(this).attr('id'))" id="GC0156178" name="S31903522602014071100000">Fig. 33: LRSM & Adhesive Membrane</a><br><span class="clsCourtesyNote">Courtesy of CHRYSLER GROUP, LLC</span></span></p> <p><span class="clsCaution"><table> <tr> <td class="clsCautionLabel"><span>CAUTION:</span></td> <td> <p>The Light Rain Sensor Module (LRSM) is equipped with a clear, silicone gelatin (SilGel) adhesive membrane that serves as an optical coupler between the sensor and the windshield glass. Extreme care must be exercised to protect this membrane from contamination before it is installed in the vehicle. The LRSM should always be serviced only in a dust-free environment. Do not touch the membrane with your fingers or tools. The membrane should only come into contact with the clean and dry inside surface of the glass within the mounting bracket bonded to the windshield. If contaminated, clean any foreign material from the windshield glass using rubbing alcohol and a lint-free cloth. A contaminated SilGel membrane will negatively impact LRSM performance.</p> </td> </tr> </table></span></p> <p><span class="clsCaution"><table> <tr> <td class="clsCautionLabel"><span>CAUTION:</span></td> <td> <p>When installing the replacement silicone gelatin (SilGel) adhesive membrane pad onto the Light Rain Sensor Module (LRSM), it is necessary to minimize air pockets trapped between the SilGel membrane and the LRSM. Excessive air pockets will negatively impact LRSM performance. It is important to adhere to the procedure steps in a deliberate manner to achieve satisfactory results.</p> </td> </tr> </table></span></p> <ol class="clsARABICNUM"> <li>Carefully peel away the old silicone gelatin adhesive membrane pad (2) from the windshield (optics) side of the Light Rain Sensor Module (LRSM) (1).</li> <li>Thoroughly clean the windshield (optics) side of the LRSM using isopropyl alcohol and a clean, lint-free cloth.</li> <li>Using care not to contaminate, touch or damage the replacement pad, peel off the yellow protective foil.<p><span class="clsFig"><a class="clsExtGraphicLink" onclick="ajaxModalImg($(this).attr('id'))" id="GC0155862" name="S07011109952014071100000">Fig. 34: Protective Film & Replacement Pad</a><br><span class="clsCourtesyNote">Courtesy of CHRYSLER GROUP, LLC</span></span></p> </li> <li>Looking through the transparent protective film (1), align and center the replacement pad (2) over the windshield (optics) side of the LRSM. Then use a slow, smooth and deliberate motion to roll the pad onto the windshield (optics) side of the LRSM.</li> <li>With the transparent protective film still in place, use a thumb and a firm wiping motion to press the entire surface pad against the windshield (optics) side of the LRSM.</li> <li>To avoid contamination or damage of the replacement pad, do not remove the transparent protective film until just before reinstalling the LRSM onto the windshield. Refer to <a class="clsHyperlink" href="#S07282664562014071100000">MODULE, LIGHT RAIN SENSOR, INSTALLATION</a>.</li> </ol><a name="S09297379692014071100000"></a><h2 class="clsHeadTwo">REMOVAL</h2><a name="S41249893932014071100000"></a><h2 class="clsHeadThree">REMOVAL</h2> <p><span class="clsFig"><a class="clsExtGraphicLink" onclick="ajaxModalImg($(this).attr('id'))" id="GC0155849" name="S26414520072014071100000">Fig. 35: LRSM, Harness Connector, Mount Bracket & Retaining Strap</a><br><span class="clsCourtesyNote">Courtesy of CHRYSLER GROUP, LLC</span></span></p> <ol class="clsARABICNUM"> <li>Disconnect and isolate the negative cable from the battery.</li> <li>Remove the inside rear view mirror from the mounting button (3) on the inside of the windshield glass (2). Refer to <a class="clsExtHyperlink" id="A00641412_S29848908052014071100000">MIRROR, REARVIEW, REMOVAL</a> .</li> <li>Disconnect the wire harness connector (1) from the connector receptacle for the Light Rain Sensor Module (LRSM) (6).</li> <li>Insert the tip of a small screwdriver into the rectangular cutout on one side of the spring steel retaining strap (5) on the LRSM and carefully pry the end of the strap closest to the glass away from the groove in the mounting bracket (4) on the windshield. Now rotate the loose side of the strap away from the glass far enough to disengage the other side of the strap from the mounting bracket groove.</li> <li>Firmly grasp the connector receptacle of the LRSM to pull the module away from the windshield glass and the mounting bracket.</li> <li>If the LRSM will be reinstalled, the silicone gelatin (also known as SilGel) adhesive membrane pad MUST be removed, discarded and replaced with a new unit as described in: Standard Procedure - Silicone Gelatin Pad Replacement. Refer to <a class="clsHyperlink" href="#S20630721382014071100000">MODULE, LIGHT RAIN SENSOR, STANDARD PROCEDURE</a>.</li> </ol><a name="S07282664562014071100000"></a><h2 class="clsHeadTwo">INSTALLATION</h2><a name="S12840572712014071100000"></a><h2 class="clsHeadThree">INSTALLATION</h2> <p><span class="clsCaution"><table> <tr> <td class="clsCautionLabel"><span>CAUTION:</span></td> <td> <p>The Light Rain Sensor Module (LRSM) is equipped with a clear, silicone gelatin (SilGel) adhesive membrane that serves as an optical coupler between the sensor and the windshield glass. Extreme care must be exercised to protect this membrane from contamination before it is installed in the vehicle. The LRSM should always be serviced only in a dust-free environment. Do not touch the membrane with your fingers or tools. The membrane should only come into contact with the clean and dry inside surface of the glass within the mounting bracket bonded to the windshield. If contaminated, clean any foreign material from the windshield glass using rubbing alcohol and a lint-free cloth. A contaminated SilGel membrane will negatively impact LRSM performance.</p> </td> </tr> </table></span></p> <p><span class="clsCaution"><table> <tr> <td class="clsCautionLabel"><span>CAUTION:</span></td> <td> <p>When installing the Light Rain Sensor Module (LRSM) it is necessary to minimize air pockets trapped between the SilGel membrane and the windshield glass. Excessive air pockets will negatively impact LRSM performance. It is important to adhere to the procedure steps in a deliberate manner to achieve satisfactory results.</p> </td> </tr> </table></span></p> <p><span class="clsCaution"><table> <tr> <td class="clsCautionLabel"><span>CAUTION:</span></td> <td> <p>To avoid excessive air pockets, do not try to install the spring steel retaining strap until AFTER the Light Rain Sensor Module (LRSM) has been successfully positioned to the glass within the mounting bracket bonded to the windshield.</p> </td> </tr> </table></span></p> <p><span class="clsFig"><a class="clsExtGraphicLink" onclick="ajaxModalImg($(this).attr('id'))" id="GC0156128" name="S01672048332014071100000">Fig. 36: LRSM & Mounting Bracket</a><br><span class="clsCourtesyNote">Courtesy of CHRYSLER GROUP, LLC</span></span></p> <ol class="clsARABICNUM"> <li>If a new Light Rain Sensor Module (LRSM) is being installed, remove the protective shipping cap from the LRSM as described in: Standard Procedure - Protective Cap Removal. Refer to <a class="clsHyperlink" href="#S20630721382014071100000">MODULE, LIGHT RAIN SENSOR, STANDARD PROCEDURE</a>. If an existing LRSM is being reused, the silicone gelatin (also known as SilGel) adhesive membrane pad MUST be removed, discarded and replaced with a new unit as described in: Standard Procedure - Silicone Gelatin Pad Replacement. Refer to <a class="clsHyperlink" href="#S20630721382014071100000">MODULE, LIGHT RAIN SENSOR, STANDARD PROCEDURE</a>.</li> <li>Grasp the LRSM (2) by the connector receptacle between your thumb and middle finger. Place your index finger on the back of the LRSM at the point opposite the connector receptacle.</li> <li>Align the LRSM with the mounting bracket (1) bonded onto the inside of the windshield glass near the inside rear view mirror mounting button.</li> <li>Slowly insert the LRSM into the mounting bracket at a slight angle so that the edge of the module nearest the tip of your index finger makes the initial contact with the windshield glass.</li> <li>Using a slow, deliberate motion and light pressure, draw your index finger across the back of the LRSM toward the connector receptacle until the silicone gelatin adhesive membrane pad is in full contact with the windshield glass.<p><span class="clsFig"><a class="clsExtGraphicLink" onclick="ajaxModalImg($(this).attr('id'))" id="GC0155849" name="S25301958882014071100000">Fig. 37: LRSM, Harness Connector, Mount Bracket & Retaining Strap</a><br><span class="clsCourtesyNote">Courtesy of CHRYSLER GROUP, LLC</span></span></p> </li> <li>Engage one side of the spring steel retaining strap (5) into the groove on one side of the LRSM mounting bracket (4) on the inside of the windshield glass (2).</li> <li>Depress the opposite side of the retaining strap over the LRSM firmly and evenly until it fully engages the groove of the mounting bracket with an audible click.</li> <li>Looking through the windshield from outside the vehicle, inspect the silicone gelatin adhesive membrane pad for air pockets. If air pockets are observed, let the vehicle stand for about four hours at room temperature to allow the air pockets to dissipate. If an adhesive void (air pocket) greater than about 1 millimeter (0.04 inch) is observed, replace the flawed silicone gelatin adhesive membrane pad with a new unit as described in: Standard Procedure - Silicone Gelatin Pad Replacement. Refer to <a class="clsHyperlink" href="#S20630721382014071100000">MODULE, LIGHT RAIN SENSOR, STANDARD PROCEDURE</a>.</li> <li>Reconnect the wire harness connector (1) to the LRSM connector receptacle (6).</li> <li>Reinstall the inside rear view mirror to the mounting button (3) on the inside of the windshield glass. Refer to <a class="clsExtHyperlink" id="A00641412_S11149406302014071100000">MIRROR, REARVIEW, INSTALLATION</a> .</li> <li>Reconnect the negative cable to the battery.</li> </ol><a name="S38985480012014071100000"></a><h2 class="clsHeadOne">NOZZLE, WASHER</h2><a name="S41868405472014071100000"></a><h2 class="clsHeadTwo">DESCRIPTION</h2><a name="S15224545672014071100000"></a><h2 class="clsHeadThree">FRONT</h2> <p><span class="clsFig"><a class="clsExtGraphicLink" onclick="ajaxModalImg($(this).attr('id'))" id="GC0156278" name="S01264897562014071100000">Fig. 38: Washer Nozzle Components</a><br><span class="clsCourtesyNote">Courtesy of CHRYSLER GROUP, LLC</span></span></p> <p>The fluidic front washer nozzles (1) are constructed of molded plastic and include an integral check valve. Each nozzle has two integral latches (3) that secure it in a dedicated hole in the hood panel near the base of the windshield. A resilient rubber gasket (2) seals the nozzle to the outer hood panel. The domed upper surface of the washer nozzle is visible on the outside of the hood panel and the nozzle orifices are oriented towards the windshield glass.</p> <p>An integral diaphragm type check valve is contained within the body of each nozzle. The barbed washer plumbing fittings (4) for the nozzles extend below the hood panel and are accessible from the engine compartment when the hood is opened.</p> <p>A front washer nozzle cannot be adjusted or repaired and, if ineffective or damaged, it must be replaced.</p><a name="S12477844122014071100000"></a><h2 class="clsHeadThree">HEADLAMP</h2> <p><span class="clsFig"><a class="clsExtGraphicLink" onclick="ajaxModalImg($(this).attr('id'))" id="GC0159795" name="S18613807392014071100000">Fig. 39: On-Road Nozzle & Off-Road Nozzle</a><br><span class="clsCourtesyNote">Courtesy of CHRYSLER GROUP, LLC</span></span></p> <p>Vehicles equipped with the optional headlamp washer system have two static headlamp washer nozzles mounted in the front bumper fascia, one beneath each front lamp unit. Two unique versions of the nozzle are used and they are not interchangeable. The on-road version of the nozzle (1) used in vehicles that are not equipped with the optional off-road front bumper fascia can be identified by a more rounded bezel appearance and a straight quick-connect inlet nipple. The off-road version of the nozzle (2) used in vehicles that are equipped with the optional off-road front bumper fascia can be identified by a more elongated bezel appearance and a right angle quick-connect inlet nipple.</p> <p>The fixed body of both molded plastic nozzles have a fixed integral mounting clip on the rearward side just below the bezel, and a movable integral mounting clip on the opposite side. Both also have an integral index tab that engages a notch in the front bumper fascia mounting hole. A large diameter high pressure washer fluid supply line from the dedicated headlamp washer pump/motor unit is connected to the inlet nipple on the nozzle body using a molded plastic quick-connect fitting.</p> <p>The headlamp washer nozzle cannot be adjusted or repaired and, if ineffective or damaged, the nozzle must be replaced with a new unit.</p><a name="S00197372282014071100000"></a><h2 class="clsHeadThree">REAR</h2> <p><span class="clsFig"><a class="clsExtGraphicLink" onclick="ajaxModalImg($(this).attr('id'))" id="GC0159712" name="S20603419752014071100000">Fig. 40: Fluidic Rear Washer Nozzle</a><br><span class="clsCourtesyNote">Courtesy of CHRYSLER GROUP, LLC</span></span></p> <p>The fluidic rear washer nozzle (4) is constructed of molded plastic and includes an integral check valve. The rear washer nozzle is secured by two integral latch features (3) within a mounting hole near the Center High-Mounted Stop Lamp (CHMSL) in the lower surface of the rear spoiler above the liftgate glass opening on the outer liftgate panel.</p> <p>The outer surface of the washer nozzle is visible on the lower exterior surface of the spoiler, and a rubber gasket seals the nozzle bezel or flange (2) to the spoiler mounting hole. The nozzle orifice (1) is oriented downward towards the liftgate glass. The barbed washer plumbing quick-connect nipple fitting (5) is concealed between the spoiler and the liftgate outer panel.</p> <p>The rear washer nozzle cannot be adjusted or repaired and, if ineffective or damaged, it must be replaced.</p><a name="S22029652422014071100000"></a><h2 class="clsHeadTwo">OPERATION</h2><a name="S36757084362014071100000"></a><h2 class="clsHeadThree">FRONT</h2> <p>The two washer nozzles are designed to dispense washer fluid into the wiper pattern area on the outside of the windshield glass. Pressurized washer fluid is fed to each nozzle from the washer reservoir by the washer pump/motor unit through a single supply line, which is attached to a barbed nipple on each washer nozzle below the hood panel. A fluidic matrix within the washer nozzle causes the pressurized washer fluid to be emitted from the nozzle orifice as an oscillating stream to more effectively cover a larger area of the glass to be cleaned.</p> <p>The integral check valve in each nozzle prevents washer fluid from draining out of the washer supply lines back to the washer reservoir. This drain-back would result in a lengthy delay after the washer switch is actuated until washer fluid was dispensed through the nozzles, because the washer pump would have to refill the washer plumbing from the reservoir to the nozzles. Such a drain-back condition could also result in water, dirt, or other outside contaminants being drawn into the washer system by a siphoning action through the washer nozzle orifice. This water could subsequently freeze and plug the nozzle, while other contaminants could interfere with proper nozzle operation and cause improper nozzle spray patterns. In addition, the check valve prevents washer fluid from siphoning out through the washer nozzles after the washer system is turned Off.</p> <p>When the washer pump pressurizes and pumps washer fluid from the reservoir through the washer plumbing, the fluid pressure unseats a diaphragm from over a sump well within the nozzle by overriding the spring pressure applied to it by a piston. With the diaphragm unseated, washer fluid is allowed to flow toward the nozzle orifice. When the washer pump stops operating, the spring pressure on the piston seats the diaphragm over the sump well in the nozzle and fluid flow in either direction within the washer plumbing is prevented.</p><a name="S36566673272014071100000"></a><h2 class="clsHeadThree">HEADLAMP</h2> <p>Each time the headlamp washer pump/motor unit is activated, pressure builds within the high pressure supply lines to each headlamp washer nozzle. As the hydraulic pressure is delivered to the nozzle, the nozzle sprays several high pressure streams against the lens of the front lamp unit.</p><a name="S35291276462014071100000"></a><h2 class="clsHeadThree">REAR</h2> <p>The rear washer nozzle is designed to dispense washer fluid into the wiper pattern area on the outside of the liftgate glass. Pressurized washer fluid is fed to the nozzle from the washer reservoir by the washer pump/motor through a single supply line, which is attached to a barbed nipple on the back of the nozzle. A fluidic matrix within the nozzle causes the pressurized washer fluid to be emitted from the nozzle orifice as an oscillating stream to more effectively cover a larger area of the glass to be cleaned.</p> <p>The integral check valve in the nozzle prevents washer fluid from draining out of the washer supply hose back to the washer reservoir. This drain-back would result in a lengthy delay after the washer switch is actuated until washer fluid was dispensed through the nozzle because the washer pump would have to refill the washer plumbing from the reservoir to the nozzle. Such a drain-back condition could also result in water, dirt, or other outside contaminants being siphoned into the washer system through the washer nozzle orifice. This water could subsequently freeze and plug the nozzle, while other contaminants could interfere with proper nozzle operation and cause improper nozzle spray patterns. In addition, the check valve prevents washer fluid from siphoning through the washer nozzle after the washer system is turned Off.</p> <p>When the washer pump pressurizes and pumps washer fluid from the reservoir through the washer plumbing, the fluid pressure unseats a diaphragm from over a sump well within the nozzle by overriding the spring pressure applied to it by a piston. With the diaphragm unseated, washer fluid is allowed to flow toward the nozzle orifice. When the washer pump stops operating, the spring pressure on the piston seats the diaphragm over the sump well within the nozzle and fluid flow in either direction within the washer plumbing is prevented.</p><a name="S32469163012014071100000"></a><h2 class="clsHeadTwo">REMOVAL</h2><a name="S35795267362014071100000"></a><h2 class="clsHeadThree">FRONT</h2> <p><span class="clsFig"><a class="clsExtGraphicLink" onclick="ajaxModalImg($(this).attr('id'))" id="GC0159585" name="S03808651612014071100000">Fig. 41: Hood Plumbing, Hood Panel & Front Washer Nozzle</a><br><span class="clsCourtesyNote">Courtesy of CHRYSLER GROUP, LLC</span></span></p> <ol class="clsARABICNUM"> <li>From the underside of the hood (1), remove the push-in retainers that secure the rear edge of the hood silencer pad to the inner hood reinforcement as necessary to access the washer nozzle (2) plumbing connections.</li> <li>From the underside of the hood, disconnect the washer plumbing (3) fitting from the barbed nipple of the washer nozzle.</li> <li>From the underside of the hood, release the integral latch features of the washer nozzle and push the nozzle out through the mounting hole toward the top side of the hood.</li> <li>Remove the washer nozzle from the top of the hood panel.</li> </ol><a name="S02294918532014071100000"></a><h2 class="clsHeadThree">HEADLAMP</h2> <p><span class="clsFig"><a class="clsExtGraphicLink" onclick="ajaxModalImg($(this).attr('id'))" id="GC0159976" name="S34424478562014071100000">Fig. 42: Headlamp Washer Nozzle</a><br><span class="clsCourtesyNote">Courtesy of CHRYSLER GROUP, LLC</span></span></p> <p><span class="clsCaution"><table> <tr> <td class="clsCautionLabel"><span>CAUTION:</span></td> <td> <p>Take proper precautions to ensure there is no cosmetic damage done to the paint finish of the headlamp washer nozzle cover or the front fascia during the following procedure.</p> </td> </tr> </table></span></p> <p><span class="clsNote"><table> <tr> <td class="clsNoteLabel"><span>NOTE:</span></td> <td> <p>There are two headlamp washer nozzle configurations available for this vehicle: one for vehicles not equipped with an off-road package, and another for vehicles equipped with an off-road package (shown here). However, the removal and installation procedures for these two nozzle configurations is identical.</p> </td> </tr> </table></span></p> <ol class="clsARABICNUM"> <li>Remove the front fascia from the vehicle. Refer to <a class="clsExtHyperlink" id="A00641392_S17471547342014071100000">FASCIA, FRONT, REMOVAL</a> .</li> <li>From the back side of the front fascia (1), disconnect the high pressure hose quick-connect fitting from the quick-connect nipple of the headlamp washer nozzle.<p>Refer to <a class="clsHyperlink" href="#S03089698662014071100000">HOSES AND TUBES, WASHER, STANDARD PROCEDURE</a>.</p> </li> <li>From the back side of the front fascia, compress the movable mounting clip (2) of the headlamp washer nozzle (3) tightly against the body of the nozzle.</li> <li>With the movable mounting clip fully compressed, tip the body of the nozzle forward far enough to raise the end of the movable clip through the mounting hole of the front fascia.</li> <li>Disengage the fixed mounting clip (4) of the nozzle and pull it upward through the mounting hole of the front fascia.</li> <li>Remove the headlamp washer nozzle from the front fascia.</li> </ol><a name="S42685103502014071100000"></a><h2 class="clsHeadThree">REAR</h2> <p><span class="clsFig"><a class="clsExtGraphicLink" onclick="ajaxModalImg($(this).attr('id'))" id="GC0159954" name="S22668130102014071100000">Fig. 43: Rear Washer Nozzle</a><br><span class="clsCourtesyNote">Courtesy of CHRYSLER GROUP, LLC</span></span></p> <ol class="clsARABICNUM"> <li>Remove the liftgate spoiler from the top of the liftgate outer panel. Refer to <a class="clsExtHyperlink" id="A00641412_S38997035922014071100000">SPOILER, REMOVAL</a> .</li> <li>From the interior of the spoiler (1), disengage the rear washer hose from the routing clips on the back of the Center High Mounted Stop Lamp (CHMSL) housing (5).</li> <li>Disconnect the quick-connect fitting (2) of the washer hose from the quick-connect nipple of the rear washer nozzle (4). Refer to <a class="clsHyperlink" href="#S03089698662014071100000">HOSES AND TUBES, WASHER, STANDARD PROCEDURE</a>.</li> <li>From the interior of the spoiler, release the latch features (3) of the rear washer nozzle and push the nozzle out through the mounting hole to the outside of the spoiler.</li> <li>Remove the rear washer nozzle from the liftgate spoiler.</li> </ol><a name="S14174175012014071100000"></a><h2 class="clsHeadTwo">INSTALLATION</h2><a name="S23872308982014071100000"></a><h2 class="clsHeadThree">FRONT</h2> <p><span class="clsFig"><a class="clsExtGraphicLink" onclick="ajaxModalImg($(this).attr('id'))" id="GC0159585" name="S05996330902014071100000">Fig. 44: Hood Plumbing, Hood Panel & Front Washer Nozzle</a><br><span class="clsCourtesyNote">Courtesy of CHRYSLER GROUP, LLC</span></span></p> <ol class="clsARABICNUM"> <li>Position the washer nozzle (2) to the mounting hole on the outside of the hood panel (1).</li> <li>Align the anti-rotation tabs of the nozzle with the anti-rotation notches in the mounting hole.</li> <li>Using hand pressure, push firmly and evenly on the top of the washer nozzle until the integral latch features lock into place on the underside of the hood.</li> <li>From the underside of the hood, reconnect the washer plumbing (3) fitting to the barbed nipple of the nozzle.</li> <li>Reinstall the push-in retainers that secure the rear edge of the hood silencer pad to the inner hood reinforcement.</li> </ol><a name="S20404113972014071100000"></a><h2 class="clsHeadThree">HEADLAMP</h2> <p><span class="clsFig"><a class="clsExtGraphicLink" onclick="ajaxModalImg($(this).attr('id'))" id="GC0159976" name="S27229045922014071100000">Fig. 45: Headlamp Washer Nozzle</a><br><span class="clsCourtesyNote">Courtesy of CHRYSLER GROUP, LLC</span></span></p> <p><span class="clsCaution"><table> <tr> <td class="clsCautionLabel"><span>CAUTION:</span></td> <td> <p>Take proper precautions to ensure there is no cosmetic damage done to the paint finish of the headlamp washer nozzle cover or the front fascia during the following procedure.</p> </td> </tr> </table></span></p> <ol class="clsARABICNUM"> <li>Insert the quick-connect nipple and body of the headlamp washer nozzle (3) into the mounting hole of the front fascia (1).</li> <li>Engage the fixed mounting clip (4) on the nozzle body through the mounting hole.<p>Tilt the nozzle body rearward far enough to engage the movable mounting clip (2) through the mounting hole and until the nozzle bezel is flush with the surface of the front fascia.</p> </li> <li>From the back side of the front fascia (1), reconnect the high pressure hose quick-connect fitting to the quick-connect nipple of the headlamp washer nozzle.</li> <li>Reinstall the front fascia onto the vehicle. Refer to <a class="clsExtHyperlink" id="A00641392_S35713371732014071100000">FASCIA, FRONT, INSTALLATION</a> .</li> </ol><a name="S39961709102014071100000"></a><h2 class="clsHeadThree">REAR</h2> <p><span class="clsFig"><a class="clsExtGraphicLink" onclick="ajaxModalImg($(this).attr('id'))" id="GC0159954" name="S18105699072014071100000">Fig. 46: Rear Washer Nozzle</a><br><span class="clsCourtesyNote">Courtesy of CHRYSLER GROUP, LLC</span></span></p> <ol class="clsARABICNUM"> <li>Position the rear washer nozzle (4) to the mounting hole in the liftgate spoiler (1). Be certain that the rubber gasket is in position on the back of the nozzle bezel or flange.</li> <li>Using hand pressure, push firmly and evenly on the nozzle bezel or flange until both integral latch features (3) are fully engaged on the inside of the spoiler mounting hole.</li> <li>Reconnect the washer supply line quick-connect fitting (2) to the quick-connect barbed nipple on the back of the nozzle.</li> <li>Engage the washer hose into the routing clips on the back of the Center High Mounted Stop Lamp (CHMSL) housing (5).</li> <li>Reinstall the spoiler onto the liftgate outer panel. Refer to <a class="clsExtHyperlink" id="A00641412_S39640989192014071100000">SPOILER, INSTALLATION</a> .</li> </ol><a name="S37688542772014071100000"></a><h2 class="clsHeadOne">MOTOR, WIPER</h2><a name="S08552011052014071100000"></a><h2 class="clsHeadTwo">DESCRIPTION</h2><a name="S32180878882014071100000"></a><h2 class="clsHeadThree">FRONT</h2> <p>The front wiper motor is packaged with the wiper linkage module in this vehicle. Refer to <a class="clsHyperlink" href="#S42725911232014071100000">LINKAGE, WIPER ARM, DESCRIPTION</a>.</p><a name="S05859297542014071100000"></a><h2 class="clsHeadThree">REAR</h2> <p><span class="clsFig"><a class="clsExtGraphicLink" onclick="ajaxModalImg($(this).attr('id'))" id="GC0146222" name="S20405310822014071100000">Fig. 47: Rear Wiper Motor, Motor Output Shaft, Integral Connector Receptacle & Rubber Isolators</a><br><span class="clsCourtesyNote">Courtesy of CHRYSLER GROUP, LLC</span></span></p> <p>The rear wiper motor is concealed behind the lower liftgate inside trim panel on the liftgate inner panel just below the liftgate glass near the center. The threaded and tapered end of the motor output shaft (1) that extends through the liftgate glass to drive the rear wiper arm and blade is the only visible component of the rear wiper motor. A rubber grommet is engaged within the output shaft clearance hole of the liftgate glass and seals the output shaft housing where it passes through the glass. An integral connector receptacle (4) connects the rear wiper motor to the vehicle electrical system through a dedicated take out and connector of the liftgate wire harness. The rear wiper motor consists of the following major components:</p> <ul class="clsBULLET"> <li><span class="clsEmphBOLD">Bracket (2)</span> - The rear wiper motor bracket consists of a Stamped metal mounting plate for the wiper motor that is secured with screws to the wiper motor transmission housing. The bracket is secured with screws through three rubber isolators (5) to three mounting points that are integral to the liftgate inner panel.</li> <li><span class="clsEmphBOLD">Motor (3)</span> - The single-speed permanent magnet rear wiper motor is secured to the rear wiper motor bracket. The wiper motor includes an integral transmission, the motor output shaft, a park switch and an integral connector receptacle. An automatic resetting circuit breaker and an internal clutch mechanism protect the motor from overloads.</li> </ul> <p>The rear wiper motor cannot be adjusted or repaired. If any component of the motor is ineffective or damaged, the entire rear wiper motor unit must be replaced. The motor output shaft grommet, the mounting hardware and the liftgate glass are available for individual service replacement.</p><a name="S37578802042014071100000"></a><h2 class="clsHeadTwo">OPERATION</h2><a name="S23396105552014071100000"></a><h2 class="clsHeadThree">FRONT</h2> <p>The front wiper motor is packaged with the wiper linkage module in this vehicle. Refer to <a class="clsHyperlink" href="#S09304515862014071100000">LINKAGE, WIPER ARM, OPERATION</a>.</p><a name="S10454942692014071100000"></a><h2 class="clsHeadThree">REAR</h2> <p>The rear wiper motor operation is controlled by the Body Control Module (BCM), which uses relays soldered onto the BCM Printed Circuit Board (PCB) to control rear wiper system operation for energizing or de-energizing the rear wiper motor. The BCM uses internal programming, hard wired inputs received from the right (wiper) multifunction switch and the rear wiper motor park switch as well as electronic messages received over the Controller Area Network (CAN) data bus to provide the rear wiper and washer system operating modes.</p> <p>The rear wiper motor park switch is a single pole, single throw, momentary switch within the wiper motor that is mechanically actuated by the wiper motor transmission components. The park switch alternately closes and opens a voltage signal for the rear wiper motor electronic control logic circuitry of the BCM. The park switch is normally an open circuit when the rear wiper blade is in the parked position, and is connected to fused ignition output when the rear wiper blade is anywhere except parked.</p> <p>This park switch input allows the electronic logic circuits of the BCM to control all of the electronic features of rear wiper motor operation and to keep the motor energized long enough to complete its current wipe cycle and park the wiper blade at the base of the glass after the status of the rear wiper system or the ignition switch transitions to Off. The internal BCM circuitry pulls the park switch sense input to ground when the switch is open so that the microcontroller sees a ground when the wiper blade is parked.</p> <p>The rear wiper motor is grounded at all times through a take out with an eyelet terminal connector in the body wire harness that is secured to a ground location in the passenger compartment. The automatic resetting circuit breaker protects the motor from overloads. The rear wiper motor transmission converts the rotary output of the wiper motor to the back and forth wiping motion of the rear wiper arm and blade on the liftgate glass.</p> <p>The hard wired inputs and outputs of the rear wiper motor may be diagnosed using conventional diagnostic tools and procedures. Refer to the appropriate wiring information. However, conventional diagnostic methods will not prove conclusive in the diagnosis of the rear wiper motor or the electronic controls and communication between other modules and devices that provide some features of the rear wiper and washer system. The most reliable, efficient and accurate means to diagnose the rear wiper motor or the electronic controls and communication related to rear wiper motor operation requires the use of a diagnostic scan tool. Refer to the appropriate diagnostic information.</p><a name="S01456571902014071100000"></a><h2 class="clsHeadTwo">REMOVAL</h2><a name="S36942854782014071100000"></a><h2 class="clsHeadThree">FRONT</h2> <p><span class="clsFig"><a class="clsExtGraphicLink" onclick="ajaxModalImg($(this).attr('id'))" id="GC0159598" name="S25712784872014071100000">Fig. 48: Front Wiper Linkage Module</a><br><span class="clsCourtesyNote">Courtesy of CHRYSLER GROUP, LLC</span></span></p> <p><span class="clsCaution"><table> <tr> <td class="clsCautionLabel"><span>CAUTION:</span></td> <td> <p>Do not apply pressure to, or pry on the plastic drive link bushings. When removing a drive link from, or installing a drive link onto the ball stud on the wiper motor crank arm apply pressure to, or pry on only the metal portions of the drive link around the bushing. If the bushing is damaged, the entire wiper linkage module MUST be replaced.</p> </td> </tr> </table></span></p> <p><span class="clsCaution"><table> <tr> <td class="clsCautionLabel"><span>CAUTION:</span></td> <td> <p>Do not remove the crank arm nut from the wiper motor output shaft. The crank arm is indexed to the output shaft with the motor in the park position during the manufacturing process, but there are no provisions made for correctly indexing this connection in the field. If the crank arm to output shaft indexing is incorrect, the entire wiper motor and crank arm unit MUST be replaced.</p> </td> </tr> </table></span></p> <ol class="clsARABICNUM"> <li>Disconnect and isolate the negative cable from the battery.</li> <li>Remove the front wiper linkage module from the cowl plenum and place it on a suitable work surface. Refer to <a class="clsHyperlink" href="#S19506094222014071100000">LINKAGE, WIPER ARM, REMOVAL</a>.</li> <li>Disengage the socket bushing (1) of the wiper drive link (2) from the ball stud on the wiper motor crank arm (6) using two large screwdrivers, one on each side of the ball stud. Pry firmly and evenly between the crank arm and the metal portion of the drive link until the socket unsnaps from the ball.</li> <li>Remove the two screws (5) that secure the motor bracket (3) to the module bracket (4).</li> <li>Remove the wiper motor and crank arm as a unit from the module bracket.</li> </ol><a name="S09601288952014071100000"></a><h2 class="clsHeadThree">REAR</h2> <p><span class="clsFig"><a class="clsExtGraphicLink" onclick="ajaxModalImg($(this).attr('id'))" id="GC0146226" name="S04724277702014071100000">Fig. 49: Liftgate Glass, Rear Wiper Arm & Output Shaft</a><br><span class="clsCourtesyNote">Courtesy of CHRYSLER GROUP, LLC</span></span></p> <ol class="clsARABICNUM"> <li>Disconnect and isolate the negative cable from the battery.</li> <li>From the outside of the liftgate glass (4), remove the rear wiper arm (2) from the rear wiper motor output shaft (5). Refer to <a class="clsHyperlink" href="#S25008866622014071100000">ARM, WIPER, REMOVAL</a>.<p><span class="clsFig"><a class="clsExtGraphicLink" onclick="ajaxModalImg($(this).attr('id'))" id="GC0159895" name="S33624979532014071100000">Fig. 50: Rear Wiper Motor</a><br><span class="clsCourtesyNote">Courtesy of CHRYSLER GROUP, LLC</span></span></p> </li> <li>From the inside of the liftgate, remove the trim from the liftgate inner panel (1). Refer to <a class="clsExtHyperlink" id="A00641412_S27256992482014071100000">PANEL, TRIM, REMOVAL</a> .</li> <li>Disconnect the liftgate wire harness connector (4) from the rear wiper motor (2) connector receptacle.</li> <li>Remove the three screws (3) that secure the motor mounting bracket to the liftgate inner panel.</li> <li>Carefully slide the rear wiper motor output shaft and housing out of the grommet installed in the clearance hole of the liftgate glass.</li> <li>From the outside of the liftgate, remove the output shaft grommet from the clearance hole in the liftgate glass and discard.</li> </ol><a name="S13698500752014071100000"></a><h2 class="clsHeadTwo">INSTALLATION</h2><a name="S10506483502014071100000"></a><h2 class="clsHeadThree">FRONT</h2> <p><span class="clsFig"><a class="clsExtGraphicLink" onclick="ajaxModalImg($(this).attr('id'))" id="GC0159598" name="S23896344212014071100000">Fig. 51: Front Wiper Linkage Module</a><br><span class="clsCourtesyNote">Courtesy of CHRYSLER GROUP, LLC</span></span></p> <p><span class="clsCaution"><table> <tr> <td class="clsCautionLabel"><span>CAUTION:</span></td> <td> <p>Do not apply pressure to, or pry on the plastic drive link bushings. When removing a drive link from, or installing a drive link onto the ball stud on the wiper motor crank arm apply pressure to, or pry on only the metal portions of the drive link around the bushing. If the bushing is damaged, the entire wiper linkage module MUST be replaced.</p> </td> </tr> </table></span></p> <p><span class="clsCaution"><table> <tr> <td class="clsCautionLabel"><span>CAUTION:</span></td> <td> <p>Do not remove the crank arm nut from the wiper motor output shaft. The crank arm is indexed to the output shaft with the motor in the park position during the manufacturing process, but there are no provisions made for correctly indexing this connection in the field. If the crank arm to output shaft indexing is incorrect, the entire wiper motor and crank arm unit MUST be replaced.</p> </td> </tr> </table></span></p> <ol class="clsARABICNUM"> <li>Position the front wiper motor unit to the front wiper module bracket (4).</li> <li>Install and tighten the two screws (5) into the two nuts that secure the motor bracket (3) to the module bracket. Tighten the screws to 7.5 N.m (66 in. lbs.).</li> <li>Position the socket bushing (1) of the wiper drive link (2) over the ball stud on the crank arm (6).</li> <li>Place a short 19 millimeter or 3/4 inch socket over the domed cap side of the socket bushing as an installation tool. Use large channel-lock pliers to firmly and evenly apply enough pressure to the underside of the crank arm and the top of the socket installation tool to snap the bushing onto the ball stud. <span class="clsEmphBOLD">Do not apply pressure directly to the plastic bushing.</span> <p><span class="clsNote"><table> <tr> <td class="clsNoteLabel"><span>NOTE:</span></td> <td> <p>Be certain to transition the ignition switch to the On status, then turn the front wiper switch On and Off again to cycle the wiper motor and linkage to their natural park position before reinstalling the front wiper arms onto the wiper pivots.</p> </td> </tr> </table></span></p> </li> <li>Reinstall the front wiper linkage module into the vehicle. Refer to <a class="clsHyperlink" href="#S20676768892014071100000">LINKAGE, WIPER ARM, INSTALLATION</a>.</li> <li>Reconnect the negative cable to the battery.</li> </ol><a name="S20503671302014071100000"></a><h2 class="clsHeadThree">REAR</h2> <p><span class="clsFig"><a class="clsExtGraphicLink" onclick="ajaxModalImg($(this).attr('id'))" id="GC0146226" name="S20376097432014071100000">Fig. 52: Liftgate Glass, Rear Wiper Arm & Output Shaft</a><br><span class="clsCourtesyNote">Courtesy of CHRYSLER GROUP, LLC</span></span></p> <ol class="clsARABICNUM"> <li>From the outside of the liftgate, install a new rubber grommet (3) into the rear wiper motor output shaft clearance hole of the liftgate glass (4). Always use a new grommet in the glass.<p><span class="clsFig"><a class="clsExtGraphicLink" onclick="ajaxModalImg($(this).attr('id'))" id="GC0159895" name="S42929915542014071100000">Fig. 53: Rear Wiper Motor</a><br><span class="clsCourtesyNote">Courtesy of CHRYSLER GROUP, LLC</span></span></p> </li> <li>From the inside of the liftgate, position the rear wiper motor (2) output shaft and housing through the grommet in the liftgate glass clearance hole.</li> <li>Position the rear wiper motor mounting bracket to the liftgate inner panel.</li> <li>Install and tighten the three screws (3) that secure the motor mounting bracket to the liftgate inner panel. Tighten the screws securely.</li> <li>Reconnect the liftgate wire harness connector (4) to the rear wiper motor connector receptacle.</li> <li>Reinstall the trim onto the liftgate inner panel. Refer to <a class="clsExtHyperlink" id="A00641412_S35567916532014071100000">PANEL, TRIM, INSTALLATION</a> .</li> <li>From the outside of the liftgate, reinstall the rear wiper arm onto the motor output shaft. Refer to <a class="clsHyperlink" href="#S22763570302014071100000">ARM, WIPER, INSTALLATION</a>.</li> <li>Reconnect the negative cable to the battery.</li> </ol><a name="S19472222332014071100000"></a><h2 class="clsHeadOne">PUMP, WINDSHIELD WASHER</h2><a name="S03526575422014071100000"></a><h2 class="clsHeadTwo">DESCRIPTION</h2><a name="S03454964892014071100000"></a><h2 class="clsHeadThree">FRONT AND REAR</h2> <p><span class="clsFig"><a class="clsExtGraphicLink" onclick="ajaxModalImg($(this).attr('id'))" id="GC0082822" name="S30269394712014071100000">Fig. 54: Washer Pump/Motor</a><br><span class="clsCourtesyNote">Courtesy of CHRYSLER GROUP, LLC</span></span></p> <p>The washer pump/motor unit is located on the top of a sump area on the outboard side of the washer reservoir, which is located between the left front fender and the left front fender load beam ahead of the left front wheel house splash shield. A small permanently lubricated and sealed reversible electric motor (3) is coupled to the rotor-type washer pump (4). The use of an integral valve body (7) allows the washer pump/motor unit to provide washer fluid to either the front or the rear washer systems, depending upon the direction of the pump impeller rotation.</p> <p>An inlet nipple (6) on the pump housing passes through a rubber grommet seal/filter screen installed in a dedicated mounting hole of the washer reservoir sump. The filter screen prevents most debris from entering the pump housing. When the pump is installed in the reservoir the front barbed outlet nipple (5) on the pump valve body housing connects the unit to the front washer plumbing, and the rear barbed outlet nipple (8) connects the unit to the rear washer plumbing. The letters <span class="clsEmphBOLD">F</span> and <span class="clsEmphBOLD">R</span> molded into the valve body housing adjacent to each nipple provide further clarification of the nipple assignments.</p> <p>The washer pump/motor unit is retained on the reservoir by the interference fit between the pump inlet nipple and the grommet seal, which is a light press fit. The top of the washer pump is also secured to the washer reservoir by the use of a snap fit between the snap post (2) at the top of the pump motor housing and a receptacle molded into the reservoir that allows for mounting of the washer pump without the use of fasteners. An integral connector receptacle (1) on the top of the motor housing connects the unit to the vehicle electrical system through a dedicated take out and connector of the Front End Module (FEM) wire harness.</p> <p>The washer pump/motor unit cannot be repaired. If ineffective or damaged, the entire washer pump/motor unit must be replaced. The rubber grommet seal/filter screen is available for separate service replacement.</p><a name="S16478116092014071100000"></a><h2 class="clsHeadThree">HEADLAMP</h2> <p><span class="clsFig"><a class="clsExtGraphicLink" onclick="ajaxModalImg($(this).attr('id'))" id="GC0118604" name="S04755157382014071100000">Fig. 55: Headlamp Washer Pump/Motor Unit</a><br><span class="clsCourtesyNote">Courtesy of CHRYSLER GROUP, LLC</span></span></p> <p>The headlamp washer pump/motor unit (1) of vehicles so equipped is located on the top of a sump area just above and rearward of the reversible front and rear washer pump on the outboard side of the washer reservoir, between the left front fender and left front fender load beam ahead of the left front wheel house splash shield. A small permanently lubricated and sealed electric motor is coupled to the rotor-type washer pump.</p> <p>An inlet nipple (4) on the bottom of the pump housing (3) passes through a rubber grommet seal/filter screen installed in a dedicated mounting hole of the washer reservoir. When the pump is installed in the reservoir the quick connect outlet nipple (5) on the pump housing points toward the left side of the vehicle and connects the unit to the headlamp washer plumbing.</p> <p>The headlamp washer pump/motor unit is retained on the reservoir by the interference fit between the pump inlet nipple and the grommet seal, which is a light press fit. The top of the washer pump is also secured to the washer reservoir by a light snap fit into a receptacle molded into the reservoir that allows for mounting of the washer pump without the use of fasteners. An integral connector receptacle (2) on the top of the motor housing connects the unit to the vehicle electrical system through a dedicated take out and connector of the Front End Module (FEM) wire harness.</p> <p>The headlamp washer pump/motor unit cannot be repaired. If ineffective or damaged, the entire headlamp washer pump/motor unit must be replaced. The rubber grommet seal/filter screen is available for separate service replacement.</p><a name="S40079247922014071100000"></a><h2 class="clsHeadTwo">OPERATION</h2><a name="S33401601452014071100000"></a><h2 class="clsHeadThree">FRONT AND REAR</h2> <p><span class="clsFig"><a class="clsExtGraphicLink" onclick="ajaxModalImg($(this).attr('id'))" id="GC0082823" name="S11233093812014071100000">Fig. 56: Washer Pump/Motor Operation</a><br><span class="clsCourtesyNote">Courtesy of CHRYSLER GROUP, LLC</span></span></p> <p>The washer pump/motor unit features a small Direct Current (DC) reversible electric motor. The direction of the motor is controlled by hard wired outputs from the Body Control Module (BCM). When battery current and ground are applied to the two pump motor terminals, the motor rotates in one direction. When the polarity of these connections is reversed, the motor rotates in the opposite direction. When the pump motor is energized, the rotor-type pump pressurizes the washer fluid and forces it through one of the two pump outlet nipples, and into the front or rear washer plumbing.</p> <p>The BCM controls the hard wired outputs to the pump motor based upon electronic <span class="clsEmphBOLD">washer switch</span> status messages received over the Controller Area Network (CAN) data bus from the Steering Control Module (SCM). The SCM monitors analog and digital inputs from the front and rear washer switch circuitry contained within the right multifunction switch to determine the proper electronic messages to send. Whenever the low washer fluid indicator is illuminated, the BCM is programmed to suppress all rear washer requests in order to give priority to the need for forward visibility.</p> <p>Washer fluid is drawn through the pump inlet nipple from the washer reservoir to the inlet port of the washer pump housing. An integral valve body is located in a housing on the outlet port side (2) of the pump housing. A diaphragm (4) in this valve body controls which washer system plumbing receives the washer fluid being pressurized by the pump.</p> <p>When the pump impeller (1) rotates in the counterclockwise direction (viewed from the bottom), the biased diaphragm is sealing off the rear washer system outlet and nipple so the pressurized washer fluid is pushed out through the pump front outlet port and the front washer outlet nipple (5). When the pump impeller rotates in the clockwise direction (viewed from the bottom), pressurized washer fluid is pushed out through the pump rear outlet port and moves the diaphragm to open the rear washer outlet nipple and seal off the front washer outlet nipple, then the pressurized washer fluid is pushed out through the rear washer outlet nipple (3).</p> <p>The washer pump/motor unit and the hard wired motor control circuits from the BCM may be diagnosed using conventional diagnostic tools and procedures. Refer to the appropriate wiring information. However, conventional diagnostic methods will not prove conclusive in the diagnosis of the washer pump/motor unit or the electronic controls and communication between other modules and devices that provide some features of the front and rear wiper and washer system. The most reliable, efficient and accurate means to diagnose the washer pump/motor unit or the electronic controls and communication related to washer pump/motor unit operation requires the use of a diagnostic scan tool. Refer to the appropriate diagnostic information.</p><a name="S04806874972014071100000"></a><h2 class="clsHeadThree">HEADLAMP</h2> <p>Headlamp washer pump/motor unit operation is completely controlled by the Body Control Module (BCM) logic circuits based upon electronic <span class="clsEmphBOLD">headlamp switch</span> and <span class="clsEmphBOLD">washer switch</span> status messages received from the Steering Control Module (SCM) over the Controller Area Network (CAN) data bus. The SCM monitors hard wired analog and digital inputs from the headlamp switch circuitry of the left multifunction switch and from the front washer switch circuitry of the right multifunction switch to determine the proper status messages to send.</p> <p>The headlamp washer relay control coil operates on ground received from the BCM, and the BCM will only allow the relay to function while the engine is running. In addition, the BCM will only allow the headlamp washers to operate when the headlamps are turned On. The BCM uses both a Low Side Driver (LSD) to energize or de-energize the headlamp washer relay in the Power Distribution Center (PDC) which, in turn, controls the operation of the headlamp washer pump/motor unit.</p> <p>The hard wired circuits and components of the headlamp washer pump/motor unit may be diagnosed using conventional diagnostic tools and procedures. Refer to the appropriate wiring information. However, conventional diagnostic methods will not prove conclusive in the diagnosis of the headlamp washer pump/motor or the electronic controls and communication between other modules and devices that provide some features of the headlamp washer system. The most reliable, efficient and accurate means to diagnose the headlamp washer pump/motor unit or the electronic controls and communication related to headlamp washer pump/motor unit operation requires the use of a diagnostic scan tool. Refer to the appropriate diagnostic information.</p><a name="S41223474102014071100000"></a><h2 class="clsHeadTwo">REMOVAL</h2><a name="S23651767662014071100000"></a><h2 class="clsHeadThree">FRONT AND REAR</h2> <p><span class="clsFig"><a class="clsExtGraphicLink" onclick="ajaxModalImg($(this).attr('id'))" id="GC0159723" name="S13040160512014071100000">Fig. 57: Washer Pump/Motor Unit</a><br><span class="clsCourtesyNote">Courtesy of CHRYSLER GROUP, LLC</span></span></p> <p><span class="clsNote"><table> <tr> <td class="clsNoteLabel"><span>NOTE:</span></td> <td> <p>The washer pump/motor unit may be removed from the washer reservoir without removing the reservoir from the vehicle.</p> </td> </tr> </table></span></p> <ol class="clsARABICNUM"> <li>Disconnect and isolate the negative cable from the battery.</li> <li>Turn the steering wheel to move the front wheels to the full left position.</li> <li>Raise and support the vehicle.</li> <li>Remove the plastic push-in fasteners that secure the forward end of the left front wheel house splash shield to the inner fender panel and the front fascia. Refer to <a class="clsExtHyperlink" id="A00641412_S06426288432014071100000">SHIELD, SPLASH, FRONT WHEELHOUSE, REMOVAL</a> .</li> <li>Pull the forward end of the left front wheelhouse splash shield away from the inner fender panel and front fascia far enough to access the washer pump/motor unit (3) on the outboard side of the washer reservoir (1) on the outboard end of the Front End Module (FEM) hydroform.</li> <li>Disconnect the FEM wire harness connector (2) for the washer pump motor from the motor connector receptacle.<p><span class="clsNote"><table> <tr> <td class="clsNoteLabel"><span>NOTE:</span></td> <td> <p>To aid in reinstallation, note the installed position of the front and rear washer plumbing fittings (4) prior to disconnecting them from the washer pump.</p> </td> </tr> </table></span></p> </li> <li>Disconnect the front and rear washer plumbing fittings from the barbed outlet nipples of the washer pump and allow the washer fluid to drain into a clean container for reuse.</li> <li>Pull lightly outward on the top of the washer pump/motor housing away from the washer reservoir to disengage the snap post on the top of the motor from the receptacle in the reservoir.</li> <li>Using hand pressure, firmly grasp and pull the washer pump upward far enough to disengage the pump inlet nipple from the rubber grommet seal/filter screen in the reservoir. Care must be taken not to damage the reservoir.</li> <li>Remove the washer pump/motor unit from the washer reservoir.</li> <li>Remove the rubber grommet seal from the washer pump mounting hole in the reservoir and discard.</li> </ol><a name="S25413034652014071100000"></a><h2 class="clsHeadThree">HEADLAMP</h2> <p><span class="clsFig"><a class="clsExtGraphicLink" onclick="ajaxModalImg($(this).attr('id'))" id="GC0159409" name="S16001819802014071100000">Fig. 58: Headlamp Washer Pump/Motor Unit</a><br><span class="clsCourtesyNote">Courtesy of CHRYSLER GROUP, LLC</span></span></p> <p><span class="clsNote"><table> <tr> <td class="clsNoteLabel"><span>NOTE:</span></td> <td> <p>The headlamp washer pump/motor unit may be removed from the washer reservoir without removing the reservoir from the vehicle.</p> </td> </tr> </table></span></p> <ol class="clsARABICNUM"> <li>Disconnect and isolate the negative cable from the battery.</li> <li>Siphon the washer fluid from the washer reservoir into a clean container for reuse.</li> <li>Turn the steering wheel to move the front wheels to the full left position.</li> <li>Raise and support the vehicle.</li> <li>Remove the plastic push-in fasteners that secure the forward end of the left front wheelhouse splash shield to the inner fender panel and the front fascia. Refer to <a class="clsExtHyperlink" id="A00641412_S06426288432014071100000">SHIELD, SPLASH, FRONT WHEELHOUSE, REMOVAL</a> .</li> <li>Pull the forward end of the left front wheelhouse splash shield away from the inner fender panel and front fascia far enough to access the headlamp washer pump/motor unit (3) on the outboard side of the washer reservoir (1) on the outboard end of the Front End Module (FEM) hydroform. The headlamp washer pump is above and behind the reversible front and rear washer pump/motor unit (5).</li> <li>Disconnect the FEM wire harness connector (2) for the headlamp washer pump motor from the motor connector receptacle.</li> <li>Disconnect the high pressure headlamp washer supply line quick connect fitting from the headlamp washer pump outlet quick connect nipple. Refer to <a class="clsHyperlink" href="#S03089698662014071100000">HOSES AND TUBES, WASHER, STANDARD PROCEDURE</a>.</li> <li>Pull lightly outward on the top of the headlamp washer pump/motor housing away from the washer reservoir to unsnap it from the molded receptacle in the reservoir.</li> <li>Using hand pressure, firmly grasp and pull the headlamp washer pump upward far enough to disengage the pump inlet nipple from the rubber grommet seal/filter screen in the reservoir. Care must be taken not to damage the reservoir.</li> <li>Remove the rubber grommet seal/filter screen from the pump mounting hole in the washer reservoir and discard.</li> </ol><a name="S09525000772014071100000"></a><h2 class="clsHeadTwo">INSTALLATION</h2><a name="S12650771362014071100000"></a><h2 class="clsHeadThree">FRONT AND REAR</h2> <p><span class="clsFig"><a class="clsExtGraphicLink" onclick="ajaxModalImg($(this).attr('id'))" id="GC0159723" name="S27382368582014071100000">Fig. 59: Washer Pump/Motor Unit</a><br><span class="clsCourtesyNote">Courtesy of CHRYSLER GROUP, LLC</span></span></p> <ol class="clsARABICNUM"> <li>Lubricate a new rubber grommet seal/filter screen with clean washer fluid and install it into the washer pump mounting hole in the washer reservoir (1). Always use a new rubber grommet seal/filter screen on the reservoir.</li> <li>Position the inlet nipple on the base of the pump housing of the washer pump/motor unit (3) to the rubber grommet seal/filter screen in the reservoir.</li> <li>Using hand pressure, press firmly and evenly downward on the top of washer pump/motor unit until the inlet nipple is fully seated in the rubber grommet seal/filter screen in the pump mounting hole of the reservoir.</li> <li>Align the snap post on the top of the motor housing with the snap post receptacle in the washer reservoir.</li> <li>Using hand pressure, press firmly and evenly on the top of motor housing until the post snaps into the receptacle.<p><span class="clsNote"><table> <tr> <td class="clsNoteLabel"><span>NOTE:</span></td> <td> <p>Be certain to reconnect the front and rear washer plumbing fitting to the proper outlet nipples of the washer pump. Failure to properly connect the fittings will cause the front and rear washer systems to operate incorrectly.</p> </td> </tr> </table></span></p> </li> <li>Reconnect the front and rear washer plumbing fittings (4) to the barbed outlet nipples of the washer pump.</li> <li>Reconnect the Front End Module (FEM) wire harness connector (2) for the washer pump/motor unit to the connector receptacle on the top of the motor.</li> <li>Reinstall the plastic push-in fasteners that secure the left front wheelhouse splash shield to the inner fender panel and the front fascia. Refer to <a class="clsExtHyperlink" id="A00641412_S37594678492014071100000">SHIELD, SPLASH, FRONT WHEELHOUSE, INSTALLATION</a> .</li> <li>Lower the vehicle.</li> <li>Reconnect the negative cable to the battery.</li> <li>Refill the washer reservoir with the washer fluid drained from the reservoir during the removal procedure.</li> </ol><a name="S03622298482014071100000"></a><h2 class="clsHeadThree">HEADLAMP</h2> <p><span class="clsFig"><a class="clsExtGraphicLink" onclick="ajaxModalImg($(this).attr('id'))" id="GC0159409" name="S14219377592014071100000">Fig. 60: Headlamp Washer Pump/Motor Unit</a><br><span class="clsCourtesyNote">Courtesy of CHRYSLER GROUP, LLC</span></span></p> <ol class="clsARABICNUM"> <li>Install a new rubber grommet seal/filter screen into the headlamp washer pump/motor unit mounting hole in the washer reservoir (1). Always use a new rubber grommet seal on the reservoir.</li> <li>Position the inlet nipple of the headlamp washer pump/motor unit (3) to the rubber grommet seal/filter screen in the reservoir.</li> <li>Using hand pressure, press firmly and evenly downward on the headlamp washer pump/motor unit until the inlet nipple is fully seated in the rubber grommet seal/filter screen in the pump mounting hole of the reservoir.</li> <li>Using hand pressure, press the top of the headlamp washer pump/motor housing firmly inward far enough to engage the snap fit between the motor housing and the molded motor receptacle in the reservoir.</li> <li>Reconnect the Front End Module (FEM) wire harness connector (2) to the connector receptacle on the top of the pump motor.</li> <li>Reconnect the headlamp washer high pressure supply line quick connect fitting to the headlamp washer pump outlet quick connect nipple. Refer to <a class="clsHyperlink" href="#S03089698662014071100000">HOSES AND TUBES, WASHER, STANDARD PROCEDURE</a>.</li> <li>Reinstall the plastic push-in fasteners that secure the left front wheelhouse splash shield to the inner fender panel and the front fascia. Refer to <a class="clsExtHyperlink" id="A00641412_S37594678492014071100000">SHIELD, SPLASH, FRONT WHEELHOUSE, INSTALLATION</a> .</li> <li>Lower the vehicle.</li> <li>Refill the washer reservoir with the washer fluid drained during removal.</li> <li>Reconnect the negative cable to the battery.</li> </ol><a name="S22273788042014071100000"></a><h2 class="clsHeadOne">RESERVOIR, WINDSHIELD WASHER</h2><a name="S07915530332014071100000"></a><h2 class="clsHeadTwo">DESCRIPTION</h2><a name="S39358060292014071100000"></a><h2 class="clsHeadThree">DESCRIPTION</h2> <p><span class="clsFig"><a class="clsExtGraphicLink" onclick="ajaxModalImg($(this).attr('id'))" id="GC0159974" name="S26938013802014071100000">Fig. 61: Windshield Washer Reservoir</a><br><span class="clsCourtesyNote">Courtesy of CHRYSLER GROUP, LLC</span></span></p> <p>A single washer fluid reservoir (1) is used for both the front and rear washer systems. The molded plastic washer fluid reservoir is mounted on the left outboard side of the Front End Module (FEM) hydroform between the left front fender and the left front fender load beam, ahead of the left front wheel, where it is concealed by the left front wheel house splash shield. The only visible component of the washer reservoir is the filler neck and cap unit (2), which extends upward into the engine compartment just behind the upper radiator cross member. A bright yellow plastic filler cap with a rubber seal and an International Control and Display Symbol icon for <span class="clsEmphBOLD">Windshield Washer</span> molded into it snaps over the open end of the filler neck. The cap hinges on and is secured to the reservoir filler neck by an integral retainer ring and bail strap.</p> <p>There are separate, dedicated holes on the outboard side of the reservoir provided for the reversible front and rear washer pump/motor unit (5) and the washer fluid level switch (4). The inboard side of the washer reservoir has integral mounting tabs that are secured to weld studs on the FEM hydroform by two nuts. A mounting tab near the top of the filler neck is secured by a screw to the upper radiator cross member. A mounting tab at the upper rear corner of the reservoir is secured to the battery tray after the FEM is secured to the vehicle. The left front fender wheel house splash shield must be removed to access the washer reservoir for service.</p> <p>A unique reservoir is used for vehicles manufactured for export markets with the optional High Intensity Discharge (HID) headlamps and the headlamp washer system. This reservoir has a dedicated sump and mounting receptacle for the headlamp washer pump (3) on the outboard side of the reservoir, above and rearward of the reversible front and rear washer pump. The location and mounting provisions for this reservoir are the same as those for vehicles without the headlamp washer system.</p> <p>The washer reservoir cannot be repaired and, if ineffective or damaged, it must be replaced. The washer reservoir, rubber grommet seals for the washer pump/motor units and the washer fluid level switch as well as the filler cap are each available for individual service replacement.</p><a name="S11319523962014071100000"></a><h2 class="clsHeadTwo">OPERATION</h2><a name="S13493602472014071100000"></a><h2 class="clsHeadThree">OPERATION</h2> <p>The washer fluid reservoir provides a secure, on-vehicle storage location for a large reserve of washer fluid for operation of the front and rear washer systems. The washer reservoir filler neck provides a clearly marked and readily accessible point from which to add washer fluid to the reservoir.</p> <p>The reversible front and rear washer pump/motor unit is located in a sump area near the bottom on the outboard side of the reservoir to be certain that washer fluid will be available to the pump as the fluid level in the reservoir becomes depleted. The front and rear washer pump/motor unit is mounted in the lowest position in the sump. The washer fluid level switch is mounted just above the sump area of the reservoir so that there will be adequate warning to the vehicle operator that the washer fluid level is low, before the front and rear washer systems will no longer operate.</p> <p>On vehicles equipped with the headlamp washer system the reservoir features a second sump located rearward of and above the front and rear washer pump sump. This allows the front and rear washer systems to remain operational after the washer fluid level falls below the pump inlet for the headlamp washer pump.</p><a name="S06446522062014071100000"></a><h2 class="clsHeadTwo">REMOVAL</h2><a name="S42657784472014071100000"></a><h2 class="clsHeadThree">REMOVAL</h2> <p><span class="clsFig"><a class="clsExtGraphicLink" onclick="ajaxModalImg($(this).attr('id'))" id="GC0159659" name="S23890486032014071100000">Fig. 62: Upper Radiator Support, Filler Neck & Screw</a><br><span class="clsCourtesyNote">Courtesy of CHRYSLER GROUP, LLC</span></span></p> <ol class="clsARABICNUM"> <li>Disconnect and isolate the negative cable from the battery.</li> <li>Turn the steering wheel to move the front wheels to the full left position.</li> <li>Remove the screw (3) that secures the washer reservoir filler neck (2) to the upper radiator support (1).<p><span class="clsFig"><a class="clsExtGraphicLink" onclick="ajaxModalImg($(this).attr('id'))" id="GC0159921" name="S06529453232014071100000">Fig. 63: Washer Fluid Level Switch, Pump/Motor & Headlamp Washer Pump/Motor</a><br><span class="clsCourtesyNote">Courtesy of CHRYSLER GROUP, LLC</span></span></p> </li> <li>Raise and support the vehicle.</li> <li>Remove the plastic push-in fasteners that secure the forward end of the left front wheelhouse splash shield to the inner fender panel and the front fascia. Refer to <a class="clsExtHyperlink" id="A00641412_S06426288432014071100000">SHIELD, SPLASH, FRONT WHEELHOUSE, REMOVAL</a> .</li> <li>Pull the forward end of the front wheelhouse splash shield away from the inner fender panel and front fascia far enough to access the washer reservoir (4) for service.</li> <li>Disconnect the Front End Module (FEM) wire harness connectors from the washer fluid level switch (6), the washer pump/motor (7) and, if equipped, the headlamp washer pump/motor (5).<p><span class="clsNote"><table> <tr> <td class="clsNoteLabel"><span>NOTE:</span></td> <td> <p>To aid in reinstallation, note the installed position of the washer hoses prior to disconnecting them from the washer pump.</p> </td> </tr> </table></span></p> </li> <li>Disconnect the front and rear washer hoses from the barbed outlet nipples of the washer pump and allow the washer fluid to drain into a clean container for reuse.</li> <li>If the vehicle is so equipped, disconnect the headlamp washer supply hose quick-connect fitting from the headlamp washer pump/motor.</li> <li>Remove the screw (3) that secures the mounting tab on the upper rear corner of the washer reservoir to the battery tray (2).</li> <li>Remove the two nuts (8) that secure the forward mounting tabs of the washer reservoir to the weld studs on the outboard side of the FEM hydroform (1).</li> <li>Lower the washer reservoir from the vehicle, rotating it as necessary for clearance.</li> </ol><a name="S24672658832014071100000"></a><h2 class="clsHeadTwo">INSTALLATION</h2><a name="S04175993212014071100000"></a><h2 class="clsHeadThree">INSTALLATION</h2> <p><span class="clsFig"><a class="clsExtGraphicLink" onclick="ajaxModalImg($(this).attr('id'))" id="GC0159921" name="S18462286862014071100000">Fig. 64: Washer Fluid Level Switch, Pump/Motor & Headlamp Washer Pump/Motor</a><br><span class="clsCourtesyNote">Courtesy of CHRYSLER GROUP, LLC</span></span></p> <ol class="clsARABICNUM"> <li>Position the washer reservoir (4) into the left front fender wheel house from underneath the vehicle.</li> <li>Raise the washer reservoir into position, rotating it as necessary for clearance.</li> <li>Engage the two mounting tabs at the front of the washer reservoir over the weld studs on the outboard side of the Front End Module (FEM) hydroform (1).</li> <li>Install and tighten the two nuts (8) that secure the washer reservoir to the weld studs on the FEM hydroform. Tighten the nuts to 7 N.m (60 in. lbs.).</li> <li>Install and tighten the screw (3) that secures the mounting tab on the upper rear corner of the washer reservoir to the battery tray (2). Tighten the screw to 7 N.m (60 in. lbs.).<p><span class="clsNote"><table> <tr> <td class="clsNoteLabel"><span>NOTE:</span></td> <td> <p>Be certain to reconnect the front and rear washer hoses to the proper outlet nipples of the washer pump. Failure to properly connect the hoses will cause the front and rear washer systems to operate incorrectly.</p> </td> </tr> </table></span></p> </li> <li>Reconnect the front and rear washer hoses to the barbed outlet nipples of the washer pump (7).</li> <li>If the vehicle is so equipped, reconnect the headlamp washer supply hose quick-connect fitting to the outlet nipple of the headlamp washer pump (5).</li> <li>Reconnect the FEM wire harness connectors to the washer fluid level switch (6), the washer pump/motor and, if equipped, the headlamp washer pump/motor.</li> <li>Reinstall the plastic push-in fasteners that secure the left front wheelhouse splash shield to the inner fender panel and the front fascia. Refer to <a class="clsExtHyperlink" id="A00641412_S37594678492014071100000">SHIELD, SPLASH, FRONT WHEELHOUSE, INSTALLATION</a> .</li> <li>Lower the vehicle.<p><span class="clsFig"><a class="clsExtGraphicLink" onclick="ajaxModalImg($(this).attr('id'))" id="GC0159659" name="S02298448682014071100000">Fig. 65: Upper Radiator Support, Filler Neck & Screw</a><br><span class="clsCourtesyNote">Courtesy of CHRYSLER GROUP, LLC</span></span></p> </li> <li>Install and tighten the screw (3) that secures the washer reservoir filler neck (2) mounting tab to the upper radiator cross member (1). Tighten the screw to 7 N.m (60 in. lbs.).</li> <li>Refill the washer reservoir with the washer fluid drained during removal.</li> <li>Reconnect the negative cable to the battery.</li> </ol><a name="S38017907992014071100000"></a><h2 class="clsHeadOne">SWITCH, MULTIFUNCTION, RIGHT</h2><a name="S12266182052014071100000"></a><h2 class="clsHeadTwo">DESCRIPTION</h2><a name="S40384157732014071100000"></a><h2 class="clsHeadThree">DESCRIPTION</h2> <p><span class="clsFig"><a class="clsExtGraphicLink" onclick="ajaxModalImg($(this).attr('id'))" id="GC0159844" name="S13424836232014071100000">Fig. 66: Steering Column Control Module (SCCM) & Clockspring</a><br><span class="clsCourtesyNote">Courtesy of CHRYSLER GROUP, LLC</span></span></p> <p>The right (wiper) multifunction switch (3) is integral to the Steering Column Control Module (SCCM) (2), which includes both the left (1) and right multifunction switches, the microcontroller based Steering Control Module (SCM) and serves as the carrier for the clockspring (4). The right multifunction switch is located on the right side of the steering column, just below the steering wheel. This switch is the primary control for the front and rear wiper and washer systems.</p> <p><span class="clsFig"><a class="clsExtGraphicLink" onclick="ajaxModalImg($(this).attr('id'))" id="GC0159502" name="S20966292832014071100000">Fig. 67: Control Knob, Control Stalk & Right Multifunction Switch</a><br><span class="clsCourtesyNote">Courtesy of CHRYSLER GROUP, LLC</span></span></p> <p>The only visible components of the switch are the control stalk (1), control knob (2) and control sleeve (3) that extend through the steering column shrouds on the right side of the column. The remainder of the switch including its mounting provisions and electrical connections are concealed within the SCCM beneath the steering column shrouds. The switch controls are constructed of molded black plastic. Each of the switch controls has white International Control and Display Symbol graphics applied to it, which clearly identify its many functions.</p> <p>The right (wiper) multifunction switch provides the vehicle operator with a control interface for the following wiper and washer system functions:</p> <ul class="clsBULLET"> <li><span class="clsEmphBOLD">Continuous Front Wipers</span> - The right multifunction switch control knob provides detent switching for two continuous front wipe modes, low speed or high speed.</li> <li><span class="clsEmphBOLD">Intermittent Front Wipers</span> - The right multifunction switch control knob provides detent switching for the intermittent front wipe mode with four minor detent delay interval positions. The four delay positions become four sensitivity positions for vehicles equipped with the optional automatic wiper system.</li> <li><span class="clsEmphBOLD">Front Wiper Mist Mode</span> - The right multifunction switch control stalk includes momentary switching of the front wiper motor low speed circuit to provide a mist mode features (sometimes referred to as pulse wipe), which allows the vehicle operator to momentarily operate the front wipers for one or more complete cycles.</li> <li><span class="clsEmphBOLD">Front Washer Mode</span> - The right multifunction switch control stalk provides momentary switching for control of the front washer system operation.</li> <li><span class="clsEmphBOLD">Intermittent Rear Wipe Mode</span> - The right multifunction switch control sleeve provides detent switching for a single fixed interval intermittent rear wiper mode.</li> <li><span class="clsEmphBOLD">Rear Washer Mode</span> - The right multifunction switch control stalk provides momentary switching for control of rear washer system operation.</li> </ul> <p>The right multifunction switch cannot be adjusted or repaired. If any function of the switch is ineffective, or if the switch is damaged, the entire SCCM mounting housing, SCM and multifunction switches unit must be replaced. Refer to <a class="clsExtHyperlink" id="A00641406_S29777494742014071100000">MODULE, STEERING COLUMN, REMOVAL</a> . The clockspring is available for separate service replacement.</p><a name="S40329001822014071100000"></a><h2 class="clsHeadTwo">OPERATION</h2><a name="S20244856102014071100000"></a><h2 class="clsHeadThree">OPERATION</h2> <p>The right (wiper) multifunction switch uses resistor multiplexing to control the many functions and features it provides using a minimal number of hard wired circuits. The switch receives clean grounds from the Steering Control Module (SCM), then provides resistor multiplexed return outputs to the SCM to indicate the selected switch positions. The SCM then sends electronic <span class="clsEmphBOLD">switch status</span> messages over the Controller Area Network (CAN) data bus to the Body Control Module (BCM) and other electronic modules in the vehicle.</p> <p>If the SCM detects no inputs from the right multifunction switch, it transmits an electronic <span class="clsEmphBOLD">Signal Not Available (SNA)</span> status message over the CAN data bus. The SNA status signals the other electronic modules to implement a fail-safe or default mode of operation for the front and rear wiper systems. The fail-safe mode will maintain the last selected front and rear wiper system operation for the remainder of the current ignition cycle, after which both wiper systems will default to Off.</p> <p>The hard wired inputs and outputs of the SCM may be diagnosed using conventional diagnostic tools and procedures. Refer to the appropriate wiring information. However, conventional diagnostic methods will not prove conclusive in the diagnosis of the right multifunction switch or the electronic controls and communication between other modules and devices that provide some features of the wiper and washer system. The most reliable, efficient and accurate means to diagnose the right multifunction switch or the electronic controls and communication related to right multifunction switch operation requires the use of a diagnostic scan tool. Refer to the appropriate diagnostic information.</p> <p>Following are descriptions of how the right multifunction switch is operated to control the many front and rear wiper and washer system functions and features it provides:</p> <ul class="clsBULLET"> <li><span class="clsEmphBOLD">Front Washer Control</span> - The right multifunction switch control stalk is pulled rearward towards the steering wheel to a momentary WASH position to activate the washer pump/motor in the front washer mode. The washer pump/motor will continue to operate for as long as the control stalk is held in this position. The SCM reads the resistor multiplexed input from the right multifunction switch and sends an electronic <span class="clsEmphBOLD">front washer switch status</span> message over the CAN data bus to the BCM and to other electronic modules in the vehicle.</li> <li><span class="clsEmphBOLD">Front Wiper Control</span> - The control knob on the end of the right multifunction switch control stalk is rotated to one of the two continuous wiper detent positions (LO or HI), to one of four intermittent delay or sensitivity wiper detent positions, or to the OFF position to select the front wiper mode. The SCM reads the resistor multiplexed input from the right multifunction switch and sends electronic <span class="clsEmphBOLD">front wiper switch status</span> messages over the CAN data bus to the BCM and to other electronic modules in the vehicle.</li> <li><span class="clsEmphBOLD">Front Wiper Mist Mode</span> - The right multifunction switch control stalk is lifted upward to a momentary MIST position to activate the front wiper MIST mode. The front wiper motor will continue to operate, one complete cycle at a time, for as long as the control stalk is held in this position. The SCM reads the resistor multiplexed input from the right multifunction switch and sends an electronic <span class="clsEmphBOLD">front wiper switch status</span> message over the CAN data bus to the BCM and to other electronic modules in the vehicle.</li> <li><span class="clsEmphBOLD">Rear Washer Control</span> - The right multifunction switch control pushed forward away from the steering wheel to the momentary WASH positions to activate the washer pump/motor in the rear washer mode. The washer pump/motor will continue to operate in the rear washer mode for as long as the control stalk is held in this position. The SCM reads the input from the right multifunction switch and sends an electronic <span class="clsEmphBOLD">rear washer switch status</span> message over the CAN data bus to the BCM and to other electronic modules in the vehicle.</li> <li><span class="clsEmphBOLD">Rear Wiper Control</span> - The rear wiper mode is selected when the right multifunction switch control sleeve is rotated to the fixed interval intermittent rear wipe detent ON position detent position. The SCM reads the input from the right multifunction switch and sends an electronic <span class="clsEmphBOLD">rear wiper switch status</span> message over the CAN data bus to the BCM and to other electronic modules in the vehicle.</li> </ul><a name="S15262567262014071100000"></a><h2 class="clsHeadTwo">DIAGNOSIS AND TESTING</h2><a name="S31233218062014071100000"></a><h2 class="clsHeadThree">DIAGNOSIS AND TESTING - RIGHT MULTIFUNCTION SWITCH</h2> <p>The hard wired inputs and outputs of the Steering Control Module (SCM) may be diagnosed using conventional diagnostic tools and procedures. Refer to the appropriate wiring information. However, conventional diagnostic methods will not prove conclusive in the diagnosis of the right multifunction switch or the electronic controls and communication between other modules and devices that provide some features of the wiper and washer system. The most reliable, efficient and accurate means to diagnose the right multifunction switch or the electronic controls and communication related to right multifunction switch operation requires the use of a diagnostic scan tool. Refer to the appropriate diagnostic information.</p><a name="S25389660152014071100000"></a><h2 class="clsHeadTwo">REMOVAL</h2><a name="S18895555662014071100000"></a><h2 class="clsHeadThree">REMOVAL</h2> <p>The right multifunction switch is serviced only as a unit with the Steering Column Control Module (SCCM) mounting housing, the Steering Control Module (SCM) and both multifunction switches. Refer to <a class="clsExtHyperlink" id="A00641406_S29777494742014071100000">MODULE, STEERING COLUMN, REMOVAL</a> . The clockspring is available for separate service replacement.</p><a name="S37870319002014071100000"></a><h2 class="clsHeadTwo">INSTALLATION</h2><a name="S27777156802014071100000"></a><h2 class="clsHeadThree">INSTALLATION</h2> <p>The right multifunction switch is serviced only as a unit with the Steering Column Control Module (SCCM) mounting housing, the Steering Control Module (SCM) and both multifunction switches. Refer to <a class="clsExtHyperlink" id="A00641406_S35571612142014071100000">MODULE, STEERING COLUMN, INSTALLATION</a> . The clockspring is available for separate service replacement.</p><a name="S41469823462014071100000"></a><h2 class="clsHeadOne">SWITCH, WASHER FLUID LEVEL</h2><a name="S33104122022014071100000"></a><h2 class="clsHeadTwo">DESCRIPTION</h2><a name="S19883093302014071100000"></a><h2 class="clsHeadThree">DESCRIPTION</h2> <p><span class="clsFig"><a class="clsExtGraphicLink" onclick="ajaxModalImg($(this).attr('id'))" id="GC0160031" name="S25956925252014071100000">Fig. 68: Washer Fluid Level Switch</a><br><span class="clsCourtesyNote">Courtesy of CHRYSLER GROUP, LLC</span></span></p> <p>The washer fluid level switch is a single pole, single throw reed-type switch mounted just above the sump area near the bottom of the washer reservoir. Only the molded plastic switch mounting flange (1) and the integral connector receptacle (5) are visible when the switch is installed in the reservoir. A short barbed nipple formation extends from the inner surface of the switch mounting flange and is pressed through a rubber grommet seal (4) installed in the mounting hole of the reservoir.</p> <p>A molded plastic float (3) hangs under a molded plastic beam (2) that extends axially from the switch mounting flange. A small permanent magnet is secured within a receptacle on the bottom of the float, and the reed switch is concealed within the beam.</p> <p>The washer fluid level switch cannot be adjusted or repaired. If ineffective or damaged, it must be replaced. The grommet seal should be replaced with a new unit each time the switch is removed from the washer reservoir.</p><a name="S16923973862014071100000"></a><h2 class="clsHeadTwo">OPERATION</h2><a name="S18260508472014071100000"></a><h2 class="clsHeadThree">OPERATION</h2> <p>The washer fluid level switch uses a float to monitor the level of the washer fluid in the washer reservoir. The float contains a small magnet. When the float moves, the proximity of this magnet to a stationary reed switch within the beam formation of the switch changes. When the fluid level in the washer reservoir is at or above the float level, the float rises and the influence of the float magnetic field is applied to the reed switch causing the normally open reed switch contacts to close. When the fluid level in the washer reservoir falls below the level of the float, the float falls and the influence of the float magnetic field is removed from the reed switch, causing the contacts of the normally open reed switch to open.</p> <p>The washer fluid level switch is connected to the vehicle electrical system through a dedicated take out and connector of the Front End Module (FEM) wire harness. The switch is connected in series between the washer fluid switch sense and return circuits of the Body Control Module (BCM). When the switch opens, the BCM senses the input on the washer fluid switch return circuit. The BCM is programmed to respond to this input by sending an electronic message to the Instrument Cluster (IC) (also known as the Instrument Panel Cluster/IPC) over the Controller Area Network (CAN) data bus requesting illumination of the low washer fluid indicator and the sounding of an audible chime tone warning.</p> <p>The washer fluid level switch and the hard wired circuits between the switch and the BCM may be diagnosed using conventional diagnostic tools and procedures. Refer to the appropriate wiring information. However, conventional diagnostic methods will not prove conclusive in the diagnosis of the washer fluid level switch or the electronic controls and communication between other modules and devices that provide some features of the wiper and washer systems. The most reliable, efficient and accurate means to diagnose the washer fluid level switch or the electronic controls and communication related to washer fluid level switch operation requires the use of a diagnostic scan tool. Refer to the appropriate diagnostic information.</p><a name="S17875378572014071100000"></a><h2 class="clsHeadTwo">REMOVAL</h2><a name="S27194409012014071100000"></a><h2 class="clsHeadThree">REMOVAL</h2> <p><span class="clsFig"><a class="clsExtGraphicLink" onclick="ajaxModalImg($(this).attr('id'))" id="GC0159792" name="S32325964732014071100000">Fig. 69: Washer Fluid Level Sensor Unit & Connector</a><br><span class="clsCourtesyNote">Courtesy of CHRYSLER GROUP, LLC</span></span></p> <p><span class="clsNote"><table> <tr> <td class="clsNoteLabel"><span>NOTE:</span></td> <td> <p>The washer fluid level switch can be removed from the washer reservoir without removing the reservoir from the vehicle.</p> </td> </tr> </table></span></p> <ol class="clsARABICNUM"> <li>Disconnect and isolate the negative cable from the battery.</li> <li>Turn the steering wheel to move the front wheels to the full left position.</li> <li>Raise and support the vehicle.</li> <li>Remove the plastic push-in fasteners that secure the forward end of the left front wheel house splash shield to the inner fender panel and the front fascia. Refer to <a class="clsExtHyperlink" id="A00641412_S06426288432014071100000">SHIELD, SPLASH, FRONT WHEELHOUSE, REMOVAL</a> .</li> <li>Pull the forward end of the left front wheel house splash shield away from the inner fender panel and front fascia far enough to access the washer fluid level sensor unit (3) on the outboard side of the washer reservoir (1) on the outboard end of the Front End Module (FEM) hydroform.</li> <li>Disconnect the FEM wire harness connector (2) for the washer fluid level sensor from the sensor connector receptacle.</li> <li>Disconnect one of the reservoir washer plumbing fittings from the barbed outlet nipple of the washer pump (4) and allow the washer fluid to drain into a clean container for reuse.</li> <li>Using a trim stick or another suitable wide flat-bladed tool, gently pry the barbed nipple of the washer fluid level sensor out of the rubber grommet seal on the reservoir just above the sump. Care must be taken not to damage the reservoir.</li> <li>Remove the washer fluid level sensor from the washer reservoir.</li> <li>Remove the rubber grommet seal from the washer fluid level sensor mounting hole in the washer reservoir and discard.</li> </ol><a name="S21189564462014071100000"></a><h2 class="clsHeadTwo">INSTALLATION</h2><a name="S11896124842014071100000"></a><h2 class="clsHeadThree">INSTALLATION</h2> <p><span class="clsFig"><a class="clsExtGraphicLink" onclick="ajaxModalImg($(this).attr('id'))" id="GC0159792" name="S26434395172014071100000">Fig. 70: Washer Fluid Level Sensor Unit & Connector</a><br><span class="clsCourtesyNote">Courtesy of CHRYSLER GROUP, LLC</span></span></p> <ol class="clsARABICNUM"> <li>Lubricate a new rubber grommet seal with clean washer fluid and install it into the washer fluid level sensor mounting hole in the washer reservoir (1). Always use a new rubber grommet seal on the reservoir.</li> <li>Insert the float of the washer fluid level sensor (3) through the rubber grommet seal and into the washer reservoir. The flat of the index tab on the washer fluid level switch mounting flange should be pointed downward.</li> <li>Using hand pressure, press firmly and evenly on the washer fluid level sensor mounting flange until the barbed nipple is fully seated in the rubber grommet seal in the mounting hole of the washer reservoir.</li> <li>Reconnect the Front End Module (FEM) wire harness connector (2) for the washer fluid level sensor to the sensor connector receptacle.</li> <li>Reconnect the reservoir washer plumbing fitting to the barbed outlet nipple of the washer pump (4).</li> <li>Reinstall the plastic push-in fasteners that secure the left front wheel house splash shield to the inner fender panel and the front fascia. Refer to <a class="clsExtHyperlink" id="A00641412_S37594678492014071100000">SHIELD, SPLASH, FRONT WHEELHOUSE, INSTALLATION</a> .</li> <li>Lower the vehicle.</li> <li>Reconnect the negative cable to the battery.</li> <li>Refill the washer reservoir with the washer fluid siphoned from the reservoir during the removal procedure.</li> </ol> </body> </html>

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WIPER SYSTEM & WASHER SYSTEM - SERVICE INFORMATION
  • HEADINGS
    • DESCRIPTION
      • FRONT
      • HEADLAMP
      • REAR
    • OPERATION
      • FRONT
        • OPERATING MODES
      • HEADLAMP
      • REAR
        • OPERATING MODES
    • DIAGNOSIS AND TESTING
      • DIAGNOSIS AND TESTING - FRONT WIPER AND WASHER SYSTEM
        • DIAGNOSING FALSE WIPES (AUTOMATIC WIPER ONLY)
      • DIAGNOSIS AND TESTING - HEADLAMP WASHER SYSTEM
      • DIAGNOSIS AND TESTING - REAR WIPER AND WASHER SYSTEM
    • SPECIFICATIONS
      • SPECIFICATIONS
    • CLEANING
      • FRONT WASHER SYSTEM
      • FRONT WIPER SYSTEM
      • REAR WASHER SYSTEM
      • REAR WIPER SYSTEM
    • INSPECTION
      • FRONT WASHER SYSTEM
      • FRONT WIPER SYSTEM
      • REAR WASHER SYSTEM
      • REAR WIPER SYSTEM
    • ARM, WIPER
      • DESCRIPTION
        • FRONT
        • REAR
      • OPERATION
        • FRONT
        • REAR
      • REMOVAL
        • FRONT
        • REAR
      • INSTALLATION
        • FRONT
        • REAR
    • BLADE, WIPER
      • DESCRIPTION
        • FRONT
        • REAR
      • OPERATION
        • FRONT
        • REAR
      • REMOVAL
        • FRONT
        • REAR
      • INSTALLATION
        • FRONT
        • REAR
    • CHECK VALVE, WASHER
      • DESCRIPTION
        • DESCRIPTION
      • OPERATION
        • OPERATION
    • HOSES AND TUBES, WASHER
      • DESCRIPTION
        • FRONT
        • HEADLAMP
        • REAR
      • OPERATION
        • FRONT
        • HEADLAMP
        • REAR
      • STANDARD PROCEDURE
        • DISCONNECTING HIGH PRESSURE WASHER PLUMBING QUICK-CONNECT FITTINGS
        • DISCONNECTING LOW PRESSURE WASHER PLUMBING QUICK-CONNECT FITTINGS
        • DISCONNECTING REAR WASHER NOZZLE QUICK-CONNECT FITTING
    • LINKAGE, WIPER ARM
      • DESCRIPTION
        • DESCRIPTION
      • OPERATION
        • OPERATION
      • REMOVAL
        • REMOVAL
      • INSTALLATION
        • INSTALLATION
    • MODULE, LIGHT RAIN SENSOR
      • DESCRIPTION
        • DESCRIPTION
      • OPERATION
        • OPERATION
      • STANDARD PROCEDURE
        • PROTECTIVE CAP REMOVAL
        • SILICONE GELATIN PAD REPLACEMENT
      • REMOVAL
        • REMOVAL
      • INSTALLATION
        • INSTALLATION
    • NOZZLE, WASHER
      • DESCRIPTION
        • FRONT
        • HEADLAMP
        • REAR
      • OPERATION
        • FRONT
        • HEADLAMP
        • REAR
      • REMOVAL
        • FRONT
        • HEADLAMP
        • REAR
      • INSTALLATION
        • FRONT
        • HEADLAMP
        • REAR
    • MOTOR, WIPER
      • DESCRIPTION
        • FRONT
        • REAR
      • OPERATION
        • FRONT
        • REAR
      • REMOVAL
        • FRONT
        • REAR
      • INSTALLATION
        • FRONT
        • REAR
    • PUMP, WINDSHIELD WASHER
      • DESCRIPTION
        • FRONT AND REAR
        • HEADLAMP
      • OPERATION
        • FRONT AND REAR
        • HEADLAMP
      • REMOVAL
        • FRONT AND REAR
        • HEADLAMP
      • INSTALLATION
        • FRONT AND REAR
        • HEADLAMP
    • RESERVOIR, WINDSHIELD WASHER
      • DESCRIPTION
        • DESCRIPTION
      • OPERATION
        • OPERATION
      • REMOVAL
        • REMOVAL
      • INSTALLATION
        • INSTALLATION
    • SWITCH, MULTIFUNCTION, RIGHT
      • DESCRIPTION
        • DESCRIPTION
      • OPERATION
        • OPERATION
      • DIAGNOSIS AND TESTING
        • DIAGNOSIS AND TESTING - RIGHT MULTIFUNCTION SWITCH
      • REMOVAL
        • REMOVAL
      • INSTALLATION
        • INSTALLATION
    • SWITCH, WASHER FLUID LEVEL
      • DESCRIPTION
        • DESCRIPTION
      • OPERATION
        • OPERATION
      • REMOVAL
        • REMOVAL
      • INSTALLATION
        • INSTALLATION
  • FIGURES
    • Fig. 1: Control Knob, Control Stalk & Right Multifunction Switch
    • Fig. 2: Control Knob, Control Stalk & Right Multifunction Switch
    • Fig. 3: Wiper Blades And Wiper Arms
    • Fig. 4: Inspecting Wiper Blades
    • Fig. 5: Stamped Steel Channel, Aluminum Pivot End & Stamped Steel Strap
    • Fig. 6: Rear Wiper Arm
    • Fig. 7: Front Wiper Arm, Pivot Shaft, Nuts & Caps
    • Fig. 8: Disengaging Wiper Arm From Pivot Shaft
    • Fig. 9: Wiper Arm, Pivot Cover & Nut
    • Fig. 10: Front Wiper Arm, Pivot Shaft, Nuts & Caps
    • Fig. 11: Wiper Arm, Pivot Cover & Nut
    • Fig. 12: Blade Covers, Integral Latch & Pivot Block
    • Fig. 13: Rear Wiper Blade Is Secured By An Integral Pivot Pin
    • Fig. 14: Tab, Wiper Arm & Element
    • Fig. 15: Rear Wiper Arm & Cover
    • Fig. 16: Wiper Blade, Wiper Arm, Pivot Pin & Receptacle
    • Fig. 17: Tab, Wiper Arm & Element
    • Fig. 18: Rear Wiper Arm & Cover
    • Fig. 19: Wiper Blade, Wiper Arm, Pivot Pin & Receptacle
    • Fig. 20: Front Washer Plumbing, Rear Washer Plumbing, Hood Plumbing & Body Plumbing
    • Fig. 21: Hood Plumbing, Hood Panel & Front Washer Nozzle
    • Fig. 22: Rear Washer Plumbing
    • Fig. 23: Headliner, Rear Washer Plumbing & Upper Liftgate Opening Header
    • Fig. 24: Disconnecting High Pressure Washer Plumbing Quick-Connect Fittings
    • Fig. 25: Molded Plastic Quick-Connect & Washer Hose Tubes
    • Fig. 26: Rear Washer Nozzle Quick-Connect Fitting
    • Fig. 27: Wiper Arm Linkage Components
    • Fig. 28: Front Wiper Module, Brackets & Fasteners
    • Fig. 29: Front Wiper Module, Brackets & Fasteners
    • Fig. 30: Light Rain Sensor Module Components
    • Fig. 31: Protective Cap, Adhesive Membrane, LRSM & Latches
    • Fig. 32: Tabs, Protective Cap & LRSM
    • Fig. 33: LRSM & Adhesive Membrane
    • Fig. 34: Protective Film & Replacement Pad
    • Fig. 35: LRSM, Harness Connector, Mount Bracket & Retaining Strap
    • Fig. 36: LRSM & Mounting Bracket
    • Fig. 37: LRSM, Harness Connector, Mount Bracket & Retaining Strap
    • Fig. 38: Washer Nozzle Components
    • Fig. 39: On-Road Nozzle & Off-Road Nozzle
    • Fig. 40: Fluidic Rear Washer Nozzle
    • Fig. 41: Hood Plumbing, Hood Panel & Front Washer Nozzle
    • Fig. 42: Headlamp Washer Nozzle
    • Fig. 43: Rear Washer Nozzle
    • Fig. 44: Hood Plumbing, Hood Panel & Front Washer Nozzle
    • Fig. 45: Headlamp Washer Nozzle
    • Fig. 46: Rear Washer Nozzle
    • Fig. 47: Rear Wiper Motor, Motor Output Shaft, Integral Connector Receptacle & Rubber Isolators
    • Fig. 48: Front Wiper Linkage Module
    • Fig. 49: Liftgate Glass, Rear Wiper Arm & Output Shaft
    • Fig. 50: Rear Wiper Motor
    • Fig. 51: Front Wiper Linkage Module
    • Fig. 52: Liftgate Glass, Rear Wiper Arm & Output Shaft
    • Fig. 53: Rear Wiper Motor
    • Fig. 54: Washer Pump/Motor
    • Fig. 55: Headlamp Washer Pump/Motor Unit
    • Fig. 56: Washer Pump/Motor Operation
    • Fig. 57: Washer Pump/Motor Unit
    • Fig. 58: Headlamp Washer Pump/Motor Unit
    • Fig. 59: Washer Pump/Motor Unit
    • Fig. 60: Headlamp Washer Pump/Motor Unit
    • Fig. 61: Windshield Washer Reservoir
    • Fig. 62: Upper Radiator Support, Filler Neck & Screw
    • Fig. 63: Washer Fluid Level Switch, Pump/Motor & Headlamp Washer Pump/Motor
    • Fig. 64: Washer Fluid Level Switch, Pump/Motor & Headlamp Washer Pump/Motor
    • Fig. 65: Upper Radiator Support, Filler Neck & Screw
    • Fig. 66: Steering Column Control Module (SCCM) & Clockspring
    • Fig. 67: Control Knob, Control Stalk & Right Multifunction Switch
    • Fig. 68: Washer Fluid Level Switch
    • Fig. 69: Washer Fluid Level Sensor Unit & Connector
    • Fig. 70: Washer Fluid Level Sensor Unit & Connector
  • TABLES

2014 ACCESSORIES AND EQUIPMENT

Wiper System & Washer System - Service Information - Cherokee

DESCRIPTION

FRONT

An electrically operated intermittent front wiper and washer system is standard factory-installed safety equipment on this vehicle. The wiper and washer system includes the following major components, which are described in further detail elsewhere in this service information:

  • Front Washer Nozzle - Two fluidic front washer nozzles with integral check valves are secured by latch features to dedicated openings in the hood panel near the base of the windshield.
  • Front Washer Plumbing - The plumbing for the front washer system consists of rubber hoses, hard plastic tubing and molded rubber or plastic fittings. The plumbing is routed to the dash panel from the washer reservoir along the outboard side of the left front fender load beam. From the dash panel the washer plumbing is routed along the left hood hinge to the hood, then across the underside of the hood panel to the washer nozzles.
  • Front Wiper Arms And Blades - The two front wiper arms are secured with nuts to the threaded ends of the two wiper pivot shafts, which extend through the cowl plenum cover/grille panel located near the base of the windshield. The two front wiper blades are each secured to their wiper arm with an integral latch, and are parked on the glass near the bottom of the windshield when the front wiper system is not in operation. The left and right wiper arms and wiper blades are unique and are not interchangeable.
  • Front Wiper Module - The wiper pivot shafts are the only visible components of the front wiper module. The remainder of the module is concealed within the cowl plenum beneath the cowl plenum cover/grille panel. The wiper module includes the wiper module bracket, three rubber-isolated wiper module mounts, the wiper motor, the wiper motor crank arm, the wiper drive link, the wiper connector link and the two wiper pivots.
  • Washer Fluid Level Switch - The washer fluid level switch is located in a dedicated hole on the lower, outboard side of the washer reservoir, ahead of the left front fender wheel house splash shield.
  • Washer Pump/Motor - The reversible electric washer pump/motor unit is located in a dedicated hole in a sump area on the lower, outboard side of the washer reservoir, ahead of the left front fender wheel house splash shield. This single reversible washer pump/motor provides washer fluid to either the front or the rear washer system plumbing, depending upon the direction of the pump motor rotation.
  • Washer Reservoir - The washer reservoir is secured to the left outboard end of the Front End Module (FEM) where it is concealed between the left inner fender shield and the left outer fender panel, ahead of the left front fender wheel house splash shield. The filler neck and cap are the only visible components of the reservoir and, can be easily accessed from the left front corner of the engine compartment.

Certain functions and features of the front wiper and washer systems rely upon resources shared with other electronic modules in the vehicle over a Local Interface Network (LIN) data bus as well as over the Controller Area Network (CAN) data bus. Other electronic modules in the vehicle that may affect front wiper and washer system operation are:

  • Body Control Module - The Body Control Module (BCM) is located within the instrument panel on the driver side of the vehicle. Refer to MODULE, BODY CONTROL, DESCRIPTION .
  • Light Rain Sensor Module - A Light Rain Sensor Module (LRSM) (also known as the Rain Light Sensor Module/RLSM, the Light Sensor Module/LSM or the Rain Sensor Module/RSM) is used on vehicles equipped with the optional automatic wiper feature. The LRSM is located on a bracket bonded to the inside surface of the windshield glass, near the inside rear view mirror mount.
  • Right Multifunction Switch - The right multifunction switch is integral to the Steering Column Control Module (SCCM) mounting housing along with the clockspring and the left multifunction switch on the top of the steering column just below the steering wheel. The right multifunction switch is connected to the Steering Control Module (SCM), which is also internal and integral to the SCCM mounting housing. Only the switch control stalk extending from the right side of the steering column is visible, while the remainder of the switch is concealed beneath the steering column shrouds. The right multifunction switch provides all of the driver controls for the front and rear wiper and washer systems.
  • Steering Control Module - The Steering Control Module (SCM) is internal and integral to the Steering Column Control Module (SCCM) mounting housing which, along with the left and right multifunction switches and the clockspring, is located on the top of the steering column just below the steering wheel. The SCM is completely concealed within the SCCM mounting housing beneath the steering column shrouds. Refer to MODULE, STEERING COLUMN, DESCRIPTION .

The BCM and the SCM each contain a microcontroller and programming that allow them to communicate with each other and other electronic modules in the vehicle using the Controller Area Network (CAN) data bus. In addition the BCM and the RLSM communicate with each other using the Local Interface Network data bus. Refer to COMMUNICATION, DESCRIPTION .

Hard wired circuitry connects the front wiper and washer system components to the electrical system of the vehicle. These hard wired circuits are integral to several wire harnesses, which are routed throughout the vehicle and retained by many different methods. These circuits may be connected to each other, to the vehicle electrical system and to the front wiper and washer system components through the use of a combination of soldered splices, splice block connectors, and many different types of wire harness terminal connectors and insulators. Refer to the appropriate wiring information. The wiring information includes wiring diagrams, proper wire and connector repair procedures, further details on wire harness routing and retention, as well as pin out and location views for the various wire harness connectors, splices and grounds.

HEADLAMP

An electrically operated headlamp washer system is standard factory-installed equipment on this vehicle when it is manufactured for certain markets with High Intensity Discharge (HID) headlamps. The headlamp washer system includes the following major components, which are described in further detail elsewhere in this service information:

  • Headlamp Washer Nozzle - A headlamp washer nozzle is secured to the front fascia beneath each front lamp unit.
  • Headlamp Washer Pump/Motor - The electric headlamp washer pump/motor unit is located in a dedicated hole on the lower, outboard side of the washer reservoir, ahead of the left front fender wheel house splash shield. This high pressure pump is located above and rearward of the reversible front and rear washer pump/motor unit on the reservoir.
  • Headlamp Washer Plumbing - The plumbing for the headlamp washer system consists of large diameter rubber hoses and molded plastic fittings. The plumbing is routed to the washer nozzles on the front fascia from the washer reservoir. The connections at the headlamp washer pump and the two headlamp washer nozzles feature unique quick-connect fittings.
  • Headlamp Washer Relay - The headlamp washer relay is soldered onto the Printed Circuit Board (PCB) located within the Power Distribution Center (PDC) and is not serviceable. The PDC is located within the engine compartment near the battery.
  • Washer Reservoir - A unique washer reservoir is used on vehicles with the optional headlamp washer system, which has dedicated provisions for the headlamp washer pump and plumbing. This reservoir is mounted in the same location and using the same mounting hardware as is used for vehicles without the headlamp washers. The reservoir is concealed between the left inner fender shield and the left outer fender panel, ahead of the left front fender wheel house splash shield. The filler neck and cap are the only visible components of the reservoir and, are accessed from the left front corner of the engine compartment.

Certain functions and features of the headlamp washer system rely upon resources shared with other electronic modules in the vehicle over the Controller Area Network (CAN) data bus. Other electronic modules in the vehicle that may affect headlamp washer system operation are:

  • Body Control Module - The Body Control Module (BCM) is located within the instrument panel on the driver side of the vehicle. Refer to MODULE, BODY CONTROL, DESCRIPTION .
  • Right Multifunction Switch - The right multifunction switch is integral to the Steering Column Control Module (SCCM) along with the clockspring and the left multifunction switch on the top of the steering column just below the steering wheel. The right multifunction switch is connected to the Steering Control Module (SCM), which is also internal and integral to the SCCM mounting housing. Only the switch control stalk extending from the right side of the steering column is visible, while the remainder of the switch is concealed beneath the steering column shrouds. The right multifunction switch provides all of the driver controls for the headlamp washer system.
  • Steering Control Module - The Steering Control Module (SCM) is internal and integral to the Steering Column Control Module (SCCM) mounting housing which, along with the left and right multifunction switches and the clockspring, is located on the top of the steering column just below the steering wheel. The SCM is completely concealed within the SCCM mounting housing beneath the steering column shrouds. Refer to MODULE, STEERING COLUMN, DESCRIPTION .

The BCM and the SCM each contain a microcontroller and programming that allow them to communicate with each other and other electronic modules in the vehicle using the Controller Area Network (CAN) data bus. Refer to COMMUNICATION, DESCRIPTION .

Hard wired circuitry connects the headlamp washer system components to the electrical system of the vehicle. These hard wired circuits are integral to several wire harnesses, which are routed throughout the vehicle and retained by many different methods. These circuits may be connected to each other, to the vehicle electrical system and to the headlamp washer system components through the use of a combination of soldered splices, splice block connectors, and many different types of wire harness terminal connectors and insulators. Refer to the appropriate wiring information. The wiring information includes wiring diagrams, proper wire and connector repair procedures, further details on wire harness routing and retention, as well as pin out and location views for the various wire harness connectors, splices and grounds.

REAR

An electrically operated rear wiper and washer system is standard factory equipment on this vehicle. The rear wiper and washer system includes the following major components which are described in further detail elsewhere in this service information:

  • Rear Washer Nozzle - The rear washer nozzle and the integrated rear washer system check valve are located in the spoiler on the outer liftgate panel above the center of the liftgate glass opening.
  • Rear Washer Plumbing - The plumbing for the rear washer system consists of rubber hoses, hard plastic tubing and molded rubber or plastic fittings. The plumbing is routed to the dash panel from the washer reservoir along the outboard side of the left front fender load beam. The plumbing is then routed through the dash into the passenger compartment, up the inner A-pillar to the headliner, above the headliner to the upper liftgate opening header, then through the upper liftgate opening header and the upper liftgate to the rear washer nozzle in the spoiler on the upper liftgate.
  • Rear Wiper Arm and Blade - The single rear wiper arm and blade assembly is secured by a nut directly to the rear wiper motor output shaft which extends through a rubber grommet inserted through a hole in the liftgate glass and is parked near the base of the liftgate glass when the rear wiper system is not in operation.
  • Rear Wiper Motor - The rear wiper motor includes the motor and three rubber-isolated wiper motor mounts. The wiper motor output shaft is the only visible component of the rear wiper motor. The remainder of the motor is concealed by the inner liftgate trim panel on the inside of the liftgate beneath the liftgate glass opening.
  • Washer Pump/Motor - The reversible electric washer pump/motor unit is located in a dedicated hole in a sump area on the lower, outboard surface of the washer reservoir, ahead of the left front fender wheel house. This single reversible washer pump/motor provides washer fluid to either the front or the rear washer system plumbing, depending upon the direction of the pump motor rotation.
  • Washer Reservoir - The washer reservoir is secured to the left outboard end of the Front End Module (FEM) where it is concealed between the left inner fender shield and the left outer fender panel, ahead of the left front fender wheel house splash shield. The filler neck and cap are the only visible components of the reservoir and, can be easily accessed from the left front corner of the engine compartment.

Certain functions and features of the rear wiper and washer systems rely upon resources shared with other electronic modules in the vehicle over a Local Interface Network (LIN) data bus as well as over the Controller Area Network (CAN) data bus. Other electronic modules in the vehicle that may affect rear wiper and washer system operation are:

  • Body Control Module - The Body Control Module (BCM) is located within the instrument panel on the driver side of the vehicle. Refer to MODULE, BODY CONTROL, DESCRIPTION .
  • Right Multifunction Switch - The right multifunction switch is integral to the Steering Column Control Module (SCCM) mounting housing along with the clockspring and the left multifunction switch on the top of the steering column just below the steering wheel. The right multifunction switch is connected to the Steering Control Module (SCM), which is also internal and integral to the SCCM mounting housing. Only the switch control stalk extending from the right side of the steering column is visible, while the remainder of the switch is concealed beneath the steering column shrouds. The right multifunction switch provides all of the driver controls for the front and rear wiper and washer systems.
  • Steering Control Module - The Steering Control Module (SCM) is internal and integral to the Steering Column Control Module (SCCM) mounting housing which, along with the left and right multifunction switches and the clockspring, is located on the top of the steering column just below the steering wheel. The SCM is completely concealed within the SCCM mounting housing beneath the steering column shrouds. Refer to MODULE, STEERING COLUMN, DESCRIPTION .

Hard wired circuitry connects the rear wiper and washer system components to the electrical system of the vehicle. These hard wired circuits are integral to several wire harnesses which are routed throughout the vehicle and retained by many different methods. These circuits may be connected to each other, to the vehicle electrical system and to the rear wiper and washer system components through the use of a combination of soldered splices, splice block connectors and many different types of wire harness terminal connectors and insulators. Refer to the appropriate wiring information. The wiring information includes wiring diagrams, proper wire and connector repair procedures, further details on wire harness routing and retention, as well as pin out and location views for the various wire harness connectors, splices and grounds.

OPERATION

FRONT

Fig. 1: Control Knob, Control Stalk & Right Multifunction Switch
Courtesy of CHRYSLER GROUP, LLC

The front wiper and washer system is designed to provide the vehicle operator with a convenient, safe and reliable means of maintaining visibility through the windshield glass. The various components of this system are designed to convert electrical energy produced and stored by the vehicle electrical system into the mechanical action of the wiper blades to wipe the outside surface of the glass, as well as into the hydraulic action of the washer system to apply washer fluid stored in an on-board reservoir to the area of the glass to be wiped. When combined, these components provide the means to effectively maintain clear visibility for the vehicle operator by removing excess accumulations of rain, snow, bugs, mud or other minor debris from the outer surface of the windshield glass that might be encountered while driving the vehicle under numerous types of inclement operating conditions.

The vehicle operator initiates all front and rear wiper and washer system functions with the control knob (2) and control sleeve (3) on the control stalk (1) of the right multifunction switch that extends from the right side of the steering column, just below the steering wheel. Rotating the control knob on the end of the control stalk, selects the Off, Delay (except with the optional automatic wiper system), Automatic (with the optional automatic wiper system only), Low or High front wiper system operating modes. In the Delay mode, the control knob also allows the vehicle operator to select from one of four intermittent wipe Delay intervals. In the Automatic mode, the control knob allows the vehicle operator to select from one of four automatic wiper sensitivity levels.

Pulling the control stalk rearward actuates the momentary front washer system switch, which selects the Wash and Wipe-After-Wash modes depending upon when and how long the switch is held closed. Raising the control stalk upward actuates another momentary switch and selects the Mist mode, which cycles the wiper blades for as long as the switch is held closed then completes the current cycle and parks the blades at the base of the windshield after the control stalk is released.

The right multifunction switch provides hard wired digital inputs to the Steering Control Module (SCM) internal to the Steering Column Control Module (SCCM) mounting housing for all of the wiper and washer system functions. The SCM then sends electronic wiper switch and washer switch status messages to the Body Control Module (BCM) over the Controller Area Network (CAN) data bus requesting the appropriate wiper and washer system operating modes.

Front wiper and washer system operation is completely controlled by the SCM and BCM logic circuits, and that logic will only allow these systems to operate when the status of the ignition is Accessory or On. The BCM uses intelligent, high current, self-protected high side switches to control integrated wiper relays that control wiper system operation by energizing or de-energizing the wiper motor low and high speed brushes. The right multifunction switch circuitry receives battery current and a clean ground output from the SCM, then provides digital inputs to the SCM to indicate the selected wiper and washer system mode.

The hard wired circuits and components of the front wiper and washer system may be diagnosed using conventional diagnostic tools and procedures. Refer to the appropriate wiring information. However, conventional diagnostic methods will not prove conclusive in the diagnosis of the electronic controls and communication between other modules and devices that provide some features of the front wiper and washer system. The most reliable, efficient and accurate means to diagnose the front wiper and washer system or the electronic controls and communication related to front wiper and washer system operation requires the use of a diagnostic scan tool. Refer to the appropriate diagnostic information.

OPERATING MODES

Following are paragraphs that briefly describe the operation of each of the front wiper and washer system operating modes.

  • Continuous Wipe Mode - When the Low position of the control knob on the control stalk of the right multifunction switch is selected the SCM sends an electronic wiper switch low status message to the BCM over the CAN data bus. The BCM then directs battery current to the low speed brush of the wiper motor, causing the wipers to cycle at low speed.

    When the High position of the control knob is selected the SCM sends an electronic wiper switch high status message to the BCM. The BCM then directs battery current to the high speed brush of the wiper motor, causing the wipers to cycle at high speed.

    When the Off position of the right multifunction switch control knob is selected, the SCM sends an electronic wiper switch off status message to the BCM, then one of two events will occur. The event that occurs depends upon the position of the wiper blades on the windshield at the moment that the control knob Off position is selected.

    If the wiper blades are in the down position on the windshield when the Off position is selected, the park switch that is integral to the wiper motor is closed to ground, which provides a hard wired park switch sense input to the BCM. The BCM then de-energizes the wiper motor and the wiper motor ceases to operate.

    If the wiper blades are not in the down position on the windshield at the moment the Off position is selected, the park switch is an open circuit and the BCM continues running the wiper motor at low speed until the wiper blades are in the down position on the windshield and the park switch input to the BCM is again closed to ground.

  • Intermittent Wipe Mode - The following applies to vehicles not equipped with the optional automatic wiper system, or to vehicles equipped with the automatic wiper system that have had that feature disabled using the customer programmable features function.

    When the control knob on the control stalk of the right multifunction switch is moved to one of the four Delay interval positions the SCM sends an electronic wiper switch delay interval status message to the BCM. Then the BCM electronic intermittent wipe logic circuit responds by calculating the correct length of time between wiper sweeps based upon the selected delay interval input.

    The BCM monitors the changing state of the wiper motor park switch through a hard wired park switch sense input. This input allows the BCM to determine the proper intervals at which to energize and de-energize the wiper motor low speed brush to operate the wiper motor intermittently for one low speed cycle at a time.

    The BCM logic is also programmed to provide vehicle speed sensitivity to the selected intermittent wipe delay intervals. In order to provide this feature, the BCM monitors electronic vehicle speed messages from the Controller Antilock Brake (CAB) (also known as the Antilock Brake Module/ABM, the Antilock Brake System/ABS module or the Electronic Stability Control/ESC module) and doubles the selected delay interval whenever the vehicle speed is about 16 kilometers-per-hour (10 miles-per-hour) or less.

  • Automatic Wipe Mode - If the vehicle is equipped with the optional automatic wiper system and it is enabled, when the control knob on the control stalk of the right multifunction switch is moved to one of the four sensitivity positions, the SCM sends an electronic wiper switch sensitivity message to the BCM over the CAN data bus. The BCM, which is also a Local Interface Network (LIN) data bus master node, relays the wiper switch sensitivity message to the Light Rain Sensor Module (LRSM) (also known as the Rain Light Sensor Module/RLSM, the Light Sensor Module/LSM or the Rain Sensor Module/RSM), which is a LIN slave node over the LIN data bus.

    The LRSM monitors an area within the wipe pattern of the windshield glass for the accumulation of moisture. Based upon internal programming and the selected sensitivity level, when sufficient moisture has accumulated the LRSM sends the appropriate electronic wipe command messages back to the BCM over the LIN data bus. Then the BCM operates the wiper system accordingly.

    As the sensitivity level is set higher, the LRSM is more sensitive to moisture accumulation and will send wipe commands more frequently. The third (middle) sensitivity position of the control knob is designed to provide optimal wiper performance for most typical driving requirements. The BCM logic is also programmed to provide an immediate wipe cycle each time the control knob on the control stalk of the multifunction switch is moved from the Off position to one of the four sensitivity positions, and another immediate wipe cycle each time the control knob is moved from a lower sensitivity position to a higher sensitivity position.

    Also, if a vehicle is equipped with automatic wipers but the feature has been disabled using the customer programmable features function, when any sensitivity position is selected with the right multifunction switch control knob the system will respond in the same manner as in the intermittent wipe mode. The automatic wiper system has features designed to protect the mechanical components of the wiper system, and will not allow automatic wiper operation under the following conditions:

    • Low Ambient Temperature - When the ambient temperature is below 0° C (32° F), the automatic wipers will not operate during a new ignition cycle until the wiper switch has been moved to a different position than that which was selected at the moment the current ignition cycle began, or until a vehicle speed input is detected.
    • Transmission In Neutral - When the transmission gear selector is placed in the Neutral N position while the ignition status is On, the automatic wipers will not operate during the current ignition cycle until the wiper switch has been moved to a different position than that which was selected at the moment that Neutral N was selected, until the vehicle speed is greater than 8 kilometers-per-hour (5 miles-per-hour) or until the transmission gear selector is moved out of the Neutral N position, whichever occurs first.
  • Mist Wipe Mode - When the control stalk of the right multifunction switch is lifted upward to the momentary Mist position, the SCM sends an electronic wiper mist mode status message to the BCM. The BCM then energizes the low speed brush of the wiper motor for as long as the switch is held closed, then de-energizes the motor when the state of the switch changes to open, parking the wiper blades near the base of the windshield. The BCM can operate the wiper motor in this mode for only one low speed cycle at a time, or for an indefinite number of sequential low speed cycles, depending upon how long the switch is held closed.
  • Headlamps On With Wipers Mode - The circuitry of the BCM provides an automatic Headlamps On With Wipers mode for vehicles equipped with the optional automatic headlamps. This is a customer programmable feature that can be enabled or disabled through the Electronic Vehicle Information Center (EVIC). If this feature is enabled, when the headlamp switch is in the Auto position, the headlamps will turn On automatically whenever the windshield wipers are turned On; and, if the headlamps were turned On automatically when the wipers were turned On, they will also turn Off automatically when the wipers are turned Off.

    If this feature is enabled in vehicles equipped with the optional automatic wiper feature, when the automatic wiper mode is selected the headlamps will turn On automatically only after the wipers complete three automatic wipe cycles within about 30 seconds, and they will turn Off automatically after 3 minutes elapse without any automatic wipe cycles unless ambient light conditions dictate otherwise.

  • Wash Mode - When the control stalk of the right multifunction switch is pulled rearward to the momentary Wash position for more than about one-half second with the wiper system operating, the SCM sends an electronic washer switch status message to the BCM. Then the BCM directs battery current and ground to the washer pump/motor. This will cause the washer pump/motor to be energized for as long as the switch is held closed (up to approximately 20 seconds) and to be de-energized when the control stalk is released.

    When the control stalk is pulled to the momentary Wash position while the wiper system is operating in one of the Delay interval (or sensitivity level with automatic wipers) positions, the washer pump/motor operation is the same. However, the BCM logic also overrides the selected delay interval or sensitivity level and operates the wiper motor in a continuous low speed mode for as long as the control stalk is held in the momentary Wash position, then reverts to the selected delay interval or sensitivity level several wipe cycles after the control stalk is released. If the Wash switch is held closed for more than about 20 seconds, the BCM will suspend washer pump/motor operation until the control stalk is released for about 2 seconds, then cycled back to the Wash position.

  • Wipe-After-Wash Mode - When the control stalk of the right multifunction switch is pulled rearward to the momentary Wash position for more than about one-half second while the wiper system is not operating, the SCM sends an electronic washer switch status message to the BCM. Then the BCM directs battery current and ground to operate the washer pump/motor and energizes the wiper motor in a continuous low speed mode for as long as the switch is held closed (up to approximately 20 seconds). When the control stalk is released, the BCM de-energizes the washer pump/motor immediately, but allows the wiper motor to operate for two or three additional wipe cycles before it de-energizes the wiper motor and parks the wiper blades near the base of the windshield.

    If the control stalk is pulled rearward for more than about 20 seconds, the BCM will suspend washer pump/motor operation until the stalk is released for about 2 seconds and then cycled back to the Wash position; however, the wipers will continue to operate for as long as the switch is held closed. The BCM monitors the changing state of the wiper motor park switch through a hard wired wiper park switch sense circuit input. This input allows the BCM to count the number of wipe cycles that occur after the control stalk is released, and to determine the proper interval at which to de-energize the wiper motor to complete the Wipe-After-Wash mode cycle.

HEADLAMP

The headlamp washer system is designed to provide the vehicle operator with a convenient, safe, and reliable means of maintaining High Intensity Discharge (HID) headlamp lighting performance. The various components of this system are designed to convert electrical energy produced by the vehicle electrical system into the hydraulic action of the washer system to apply washer fluid stored in an on-board reservoir to the lenses of the two front lamp units, removing excess accumulations of snow, ice, bugs, mud, or other minor debris from the front lamps that might be encountered while driving the vehicle under numerous types of inclement operating conditions.

The vehicle operator initiates the headlamp washer system function using the control stalk of the right multifunction switch that extends from the right side of the steering column, just below the steering wheel. While the HID headlamp low beams are turned On, pulling the control stalk rearward towards the steering wheel beyond the actuation point for more than about 100 milliseconds (0.10 second) activates the front washer pump/motor. During any ignition cycle, the first time the front washer pump/motor is activated and; thereafter, each eleventh time the front washer pump/motor is activated, the headlamp washer pump/motor cycle is also activated.

Each time the headlamp washers are employed, the headlamp washer pump/motor is activated using a two shot strategy. The initial shot wets the lenses of the HID headlamps. The lenses are then allowed to soak for a short interval before a second shot is dispensed to rinse the lenses. Each shot results in several high pressure streams of washer fluid being dispensed upon the headlamp lenses by the headlamp washer nozzles.

Headlamp washer system operation is completely controlled by the Body Control Module (BCM) logic circuits based upon programming and electronic wash command message inputs received from the Steering Control Module (SCM) internal to the Steering Column Control Module (SCCM) for all of the wiper and washer system functions. The SCM then sends electronic wiper switch and washer switch status messages to the BCM over the Controller Area Network (CAN) data bus requesting the appropriate wiper and washer system operating modes.

The BCM will only allow this system to operate when the status of the ignition is On and the headlamp low beams are turned On. When the appropriate inputs are monitored and the appropriate programming requirements have been met, the BCM provides the appropriate output to the headlamp washer relay integral to the Printed Circuit Board (PCB) within the Power Distribution Center (PDC). The BCM uses a Low Side Driver (LSD) to energize or de-energize the headlamp washer relay which, in turn, controls the operation of the headlamp washer pump/motor unit.

The hard wired circuits and components of the headlamp washer system may be diagnosed using conventional diagnostic tools and procedures. Refer to the appropriate wiring information. However, conventional diagnostic methods will not prove conclusive in the diagnosis of the headlamp washer system or the electronic controls and communication between other modules and devices that provide some features of the headlamp washer system. The most reliable, efficient and accurate means to diagnose the headlamp washer system or the electronic controls and communication related to headlamp washer system operation requires the use of a diagnostic scan tool. Refer to the appropriate diagnostic information.

REAR

Fig. 2: Control Knob, Control Stalk & Right Multifunction Switch
Courtesy of CHRYSLER GROUP, LLC

The rear wiper and washer system is designed to provide the vehicle operator with a convenient, safe, and reliable means of maintaining visibility through the liftgate glass. The various components of this system are designed to convert electrical energy produced by the vehicle electrical system into the mechanical action of the wiper blade to wipe the outside surface of the glass, as well as into the hydraulic action of the washer system to apply washer fluid stored in an on-board reservoir to the area of the glass to be wiped. When combined, these components provide the means to effectively maintain clear visibility for the vehicle operator by removing excess accumulations of rain, snow, bugs, mud, or other minor debris from the outer surface of the liftgate glass that might be encountered while driving the vehicle under numerous types of inclement operating conditions.

The vehicle operator initiates all rear wiper and washer system functions with the control sleeve (3) and the control stalk (1) of the right (wiper) multifunction switch that extends from the right side of the steering column, just below the steering wheel. Rotating the control sleeve to a detent position selects the Off or Delay (Intermittent) rear wiper system operating modes. Pushing the control stalk to a momentary forward position actuates the rear washer system switch, which selects the rear wash mode and dispenses washer fluid in the wipe pattern on the liftgate glass for as long as the switch is held closed.

The right multifunction switch provides hard wired digital inputs to the Steering Control Module (SCM) internal to the Steering Column Control Module (SCCM) mounting housing for all of the wiper and washer system functions. The SCM then sends electronic wiper switch and washer switch status messages to the Body Control Module (BCM) over the Controller Area Network (CAN) data bus requesting the appropriate wiper and washer system operating modes.

Rear wiper and washer system operation is completely controlled by the SCM and BCM logic circuits, and that logic will only allow these systems to operate when the status of the ignition is Accessory or On. The BCM uses a High Side Driver (HSD) to control rear wiper system operation by energizing or de-energizing the rear wiper motor. The right multifunction switch circuitry receives battery current and a clean ground output from the SCM, then provides digital inputs to the SCM to indicate the selected wiper and washer system mode.

The hard wired circuits and components of the rear wiper and washer system may be diagnosed using conventional diagnostic tools and procedures. Refer to the appropriate wiring information. However, conventional diagnostic methods will not prove conclusive in the diagnosis of the rear wiper and washer system or the electronic controls and communication between other modules and devices that provide some features of the rear wiper and washer system. The most reliable, efficient and accurate means to diagnose the rear wiper and washer system or the electronic controls and communication related to rear wiper and washer system operation requires the use of a diagnostic scan tool. Refer to the appropriate diagnostic information.

OPERATING MODES

Following are paragraphs that briefly describe the operation of each of the rear wiper and washer system operating modes.

  • Intermittent Wipe Mode - When the right (wiper) multifunction switch control sleeve is moved to the Delay (Intermittent) position, the SCM sends an electronic rear wiper switch on status message to the BCM over the CAN data bus. The BCM responds by energizing a High Side Driver (HSD) that directs battery current to the rear wiper motor. If the front wiper system is inactive, the BCM will cycle the rear wiper at a fixed intermittent speed. If the front wiper system is active, the BCM cycles the rear wiper in a synchronous manner, at one-half the speed of the front wipers. If Reverse (R ) has been selected with the transmission gear selector, the BCM operates the rear wiper in a continuous manner.

    When the Off position of the right multifunction switch control sleeve is selected, the SCM sends an electronic rear wiper switch off status message to the BCM over the CAN data bus. The event that occurs depends upon the position of the wiper blade on the liftgate glass at the moment that the control sleeve Off position is selected.

    If the rear wiper blade is in the down position on the glass when the Off position is selected, the park switch that is integral to the rear wiper motor is an open circuit, which provides a hard wired park switch sense input to the BCM. The internal BCM circuitry pulls the park switch sense input to ground when the switch is open so that the microcontroller sees a ground when the wiper blade is parked. The BCM then de-energizes the rear wiper motor and the wiper motor ceases to operate.

    If the rear wiper blade is not in the down position on the liftgate glass at the moment the Off position is selected, the park switch is closed to fused ignition output and the BCM continues running the wiper motor at low speed until the rear wiper blade is in the down position on the liftgate glass and the park switch input to the BCM is again pulled to ground.

  • Wash Mode - When the control stalk of the right (wiper) multifunction switch is pushed forward to the momentary rear Wash position, the SCM sends an electronic washer switch status message to the BCM. Then the BCM directs battery current and ground to the washer pump/motor. This will cause the washer pump/motor to be energized for as long as the switch is held closed (up to approximately 20 seconds) and to be de-energized when the control stalk is released.

    When the control stalk is pushed forward to the momentary Wash position while the rear wiper system is operating the washer pump/motor operation is the same. However, the BCM logic also overrides the selected wiper operating mode and operates the wiper motor in a continuous low speed mode for as long as the control stalk is held in the momentary Wash position, then reverts to the selected operating mode several wipe cycles after the control stalk is released. If the Wash switch is held closed for more than about 20 seconds, the BCM will suspend washer pump/motor operation until the control stalk is released for about 2 seconds, then cycled back to the Wash position.

  • Wipe-After-Wash Mode - When the control stalk of the right (wiper) multifunction switch is pushed forward to the momentary rear Wash position for more than about one-half second while the rear wiper system is not operating, the BCM directs battery current and ground to the washer pump/motor and energizes the rear wiper motor in a continuous mode for as long as the switch is held closed. When the control stalk is released, the BCM de-energizes the washer pump/motor immediately, but allows the rear wiper motor to operate for about three additional wipe cycles. An additional wipe cycle is performed about six seconds later before the BCM de-energizes the rear wiper motor and parks the wiper blade near the base of the liftgate glass.

    The BCM monitors the changing state of the wiper motor park switch through a hard wired wiper park switch sense circuit input. This input allows the BCM to monitor the number of wipe cycles that occur after the control stalk is released, and to determine the proper interval at which to de-energize the wiper motor to complete the Wipe-After-Wash mode cycle.

DIAGNOSIS AND TESTING

DIAGNOSIS AND TESTING - FRONT WIPER AND WASHER SYSTEM

WARNING:

To avoid serious or fatal injury on vehicles equipped with airbags, disable the Supplemental Restraint System (SRS) before attempting any steering wheel, steering column, airbag, Occupant Classification System (OCS), seat belt tensioner, impact sensor or instrument panel component diagnosis or service. Disconnect and isolate the battery negative (ground) cable, then wait two minutes for the system capacitor to discharge before performing further diagnosis or service. This is the only sure way to disable the SRS. Failure to follow these instructions may result in accidental airbag deployment.

If the front wiper motor operates, but the wipers do not move on the windshield, replace the ineffective front wiper motor or wiper linkage module. If the washer pump/motor operates, but no washer fluid is dispensed on the glass; or, if the wipers operate, but chatter, lift or do not clear the glass, clean and inspect the front wiper and washer system components as required. Refer to CLEANING and INSPECTION.

The hard wired front wiper and washer system circuits and components may be diagnosed using conventional diagnostic tools and procedures. Refer to the appropriate wiring information. The wiring information includes wiring diagrams, proper wire and connector repair procedures, details of wire harness routing and retention, connector pin out information and location views for the various wire harness connectors, splices and grounds.

However, conventional diagnostic methods will not prove conclusive in the diagnosis of the front wiper and washer system or the electronic controls and communication between other modules and devices that provide some features of the front wiper and washer system. The most reliable, efficient and accurate means to diagnose the front wiper and washer system or the electronic controls and communication related to front wiper and washer system operation requires the use of a diagnostic scan tool. Refer to the appropriate diagnostic information.

NOTE:

The front wiper and washer switches are integral to the right multifunction switch in the Steering Column Control Module (SCCM) mounting housing. The right multifunction switch communicates with the Steering Control Module (SCM), which is also internal and integral to the SCCM mounting housing. The SCM communicates with the Body Control Module (BCM) over the Controller Area Network (CAN) data bus. The BCM controls front wiper motor operation through wiper relays that are integral to the Printed Circuit Board (PCB) within the BCM.

Before performing any of the following tests, determine whether the other functions of the right multifunction switch are operational. If other right multifunction switch functions are ineffective, diagnose and repair that problem before attempting to repair the Wiper and Washer System.

FRONT WIPER AND WASHER SYSTEM DIAGNOSIS
CONDITION POSSIBLE CAUSES CORRECTION
WIPER MOTOR DOES NOT OPERATE IN ANY SWITCH POSITION 1. Ineffective motor ground circuit. 1. Test and repair open wiper motor ground circuit if required.
2. Ineffective motor feed circuits. 2. Test and repair low speed and high speed feed circuits between BCM and wiper motor if required.
3. Ineffective SCM inputs or outputs. 3. Use a diagnostic scan tool and the appropriate diagnostic information for further SCM diagnosis.
4. Ineffective BCM inputs or outputs. 4. Use a diagnostic scan tool and the appropriate diagnostic information for further BCM diagnosis.
5. Ineffective wiper motor. 5. Test and replace open or shorted wiper motor as required.
WIPERS DO NOT PARK CORRECTLY 1. Ineffective wiper motor park switch input circuit. 1. Test and repair wiper park switch input circuit between BCM and wiper motor if required.
2. Ineffective BCM inputs or outputs. 2. Use a diagnostic scan tool and the appropriate diagnostic information for further BCM diagnosis.
3. Ineffective wiper motor park switch. 3. Test and replace wiper motor if required.
WIPER MOTOR OPERATES SLOWLY IN ALL SWITCH POSITIONS 1. Ineffective wiper motor. 1. Check amperage draw with linkage disconnected from wiper motor output shaft. Correct draw should be about 2 amperes on Low speed, or 3 amperes on High speed. If incorrect, refer to the appropriate Possible Cause that follows:
2. Amperage draw too low. 2. Test and repair shorted low and high speed feed circuits if required.
3. Amperage draw too high. 3. With linkage disconnected from wiper motor output shaft, check linkage and pivots for binding. If binding is detected, repair or replace wiper linkage module if required. If no linkage binding detected, replace the wiper motor if required.
WIPERS RUN AT HIGH SPEED WITH SWITCH LOW SPEED SELECTED OR AT LOW SPEED WITH SWITCH HIGH SPEED SELECTED 1. Ineffective motor feed circuit wiring. 1. Test and repair low speed and high speed feed circuits between BCM and wiper motor if required.
AUTOMATIC WIPERS ONLY ARE INOPERATIVE 1. Automatic wipers (Rain Sensing) feature has been disabled. 1. Be certain that the automatic wipers (Rain Sensing) feature is enabled in the Customer Programmable Features Settings menu.
WASHER PUMP DOES NOT OPERATE 1. Ineffective washer pump ground circuit. 1. Test and repair open washer pump ground circuit if required.
2. Ineffective washer pump feed circuits. 2. Test and repair washer pump feed circuits between BCM and washer pump if required.
3. Ineffective SCM inputs or outputs. 3. Use a diagnostic scan tool and the appropriate diagnostic information for further SCM diagnosis.
4. Ineffective BCM inputs or outputs. 4. Use a diagnostic scan tool and the appropriate diagnostic information for further BCM diagnosis.
5. Ineffective washer pump. 5. Test and replace open or shorted washer pump if required.

DIAGNOSING FALSE WIPES (AUTOMATIC WIPER ONLY)

False wipes are unnecessary wipes that occur when the control knob of the right multifunction switch is in one of the four automatic wiper sensitivity positions and no rain or moisture is apparent within the wipe pattern on the windshield glass. Because this system is designed to operate whenever it detects moisture, if the switch is in one of the automatic wiper sensitivity positions any road spray, bug splatters or mist from passing cars or trucks may occasionally cause the wipers to cycle. These are normal characteristics of this system and are not false wipes.

False wipes generally are the result of foreign material or flaws that interfere with the system optics. The optics for this system allow the Light Rain Sensor Module (LRSM) (also known as the Rain Light Sensor Module/RLSM, the Light Sensor Module/LSM or the Rain Sensor Module/RSM) to precisely transmit several InfraRed (IR) light beams and monitor the intensity of these beams reflected from the outer surface of the windshield glass to determine the presence of moisture. The sensitivity of this system is such that anything that distorts the focus or intensity of the IR light beams or impacts the ability of the photo diodes within the LRSM to see and accurately measure these light beams can result in the LRSM logic misinterpreting the resulting input data as moisture on the windshield. The optics for this system include the lenses of the LRSM, the adhesive silicone gelatin (SilGel) layer that bonds the LRSM to the inside of the windshield and the windshield glass.

The following procedure should only be used if false wipe occurrences are frequent and persistent. Perform diagnosis of the wiper system, the right multifunction switch, the Steering Control Module (SCM) and the LRSM using a diagnostic scan tool and the appropriate diagnostic procedures before performing the following:

NOTE:

The Light Rain Sensor Module (LRSM) mounting bracket is serviced as a unit with the windshield glass. If either the bracket or the glass is ineffective or damaged, the entire LRSM bracket and windshield glass unit must be replaced. Also, if the LRSM is removed from the mounting bracket for any reason, the integrity of the adhesive silicone gelatin (SilGel) layer of the LRSM will be compromised and the silicone gelatin pad must be replaced with a new unit.

  1. Carefully inspect the outer surface of the windshield glass for physical damage, including scratches, cracks or chips in the vicinity of the LRSM mounting bracket. Scratches, cracks or chips in the windshield glass outside the area of the LRSM mounting bracket lenses will not cause false wipes. If OK, go to Step 2. If not OK, replace the damaged windshield.
  2. From the outside of the windshield glass, carefully inspect the adhesive layer between the windshield glass and the LRSM bracket for any large voids (air pockets). If an adhesive void greater than about 1 millimeter (0.04 inch) is observed, replace the flawed silicone gelatin pad. If OK, go to Step 3.
  3. Lightly pull the LRSM away from the windshield bracket to confirm that both sides of the spring steel LRSM mounting band are fully engaged with the mounting bracket on the inside of the windshield glass. If OK, go to Step 4. If not OK, install the LRSM mounting band onto the bracket as required.
  4. Remove the LRSM from the mounting bracket. Carefully inspect the LRSM mounting bracket for any physical damage and inspect the windshield glass area within the LRSM mounting bracket for contamination. If OK, go to Step 5. If contaminated, clean any foreign material from the windshield glass using rubbing alcohol and a lint-free cloth. If damaged, replace the damaged LRSM bracket and windshield as a unit.
  5. Carefully replace the LRSM with a new unit. Refer to MODULE, LIGHT RAIN SENSOR, INSTALLATION.

DIAGNOSIS AND TESTING - HEADLAMP WASHER SYSTEM

WARNING:

To avoid serious or fatal injury on vehicles equipped with airbags, disable the Supplemental Restraint System (SRS) before attempting any steering wheel, steering column, airbag, Occupant Classification System (OCS), seat belt tensioner, impact sensor or instrument panel component diagnosis or service. Disconnect and isolate the battery negative (ground) cable, then wait two minutes for the system capacitor to discharge before performing further diagnosis or service. This is the only sure way to disable the SRS. Failure to follow these instructions may result in accidental airbag deployment.

Before attempting to diagnose the headlamp washer system, confirm whether the front washer system operates satisfactorily. If the front washer system is ineffective or operates improperly, diagnose and repair that problem before attempting to repair the headlamp washer system. If the front washer system operates satisfactorily and the headlamp washer pump/motor unit operates, but both headlamp washer nozzles do not dispense washer fluid on the front lamp unit lenses, inspect the headlamp washer plumbing for pinched or leaking hoses and fittings. If the headlamp washer pump/motor unit does not operate, check the headlamp washer system fuse.

The hard wired headlamp washer system circuits and components may be diagnosed using conventional diagnostic tools and procedures. Refer to the appropriate wiring information. The wiring information includes wiring diagrams, proper wire and connector repair procedures, details of wire harness routing and retention, connector pin out information and location views for the various wire harness connectors, splices and grounds.

However, conventional diagnostic methods will not prove conclusive in the diagnosis of the headlamp washer system or the electronic controls and communication between other modules and devices that provide some features of the headlamp washer system. The most reliable, efficient and accurate means to diagnose the headlamp washer system or the electronic controls and communication related to headlamp washer system operation requires the use of a diagnostic scan tool. Refer to the appropriate diagnostic information.

DIAGNOSIS AND TESTING - REAR WIPER AND WASHER SYSTEM

WARNING:

To avoid serious or fatal injury on vehicles equipped with airbags, disable the Supplemental Restraint System (SRS) before attempting any steering wheel, steering column, airbag, Occupant Classification System (OCS), seat belt tensioner, impact sensor or instrument panel component diagnosis or service. Disconnect and isolate the battery negative (ground) cable, then wait two minutes for the system capacitor to discharge before performing further diagnosis or service. This is the only sure way to disable the SRS. Failure to follow these instructions may result in accidental airbag deployment.

If the rear wiper motor operates, but the wiper motor output shaft does not move, replace the ineffective rear wiper motor. If the washer pump/motor operates, but no washer fluid is dispensed on the glass; or, if the wiper operates, but chatters, lifts, or does not clear the glass, clean and inspect the rear wiper and washer system components as required. Refer to CLEANING and INSPECTION.

The hard wired rear wiper and washer system circuits and components may be diagnosed using conventional diagnostic tools and procedures. Refer to the appropriate wiring information. The wiring information includes wiring diagrams, proper wire and connector repair procedures, details of wire harness routing and retention, connector pin out information and location views for the various wire harness connectors, splices and grounds.

However, conventional diagnostic methods will not prove conclusive in the diagnosis of the electronic controls and communication between other modules and devices that provide some features of the rear wiper and washer system. The most reliable, efficient and accurate means to diagnose the rear wiper and washer system or the electronic controls and communication related to rear wiper and washer system operation requires the use of a diagnostic scan tool. Refer to the appropriate diagnostic information.

NOTE:

The rear wiper and washer switches are integral to the right multifunction switch in the Steering Column Control Module (SCCM). The right multifunction switch communicates with the Steering Control Module (SCM), which is also integral to the SCCM. The SCM communicates with the Body Control Module (BCM) over the Controller Area Network (CAN) data bus. The BCM controls rear wiper motor operation through the rear wiper relay that is integral to the Printed Circuit Board (PCB) within the BCM.

Before performing any of the following tests, determine whether the other functions of the right multifunction switch are operational. If other right multifunction switch functions are ineffective, diagnose and repair that problem before attempting to repair the Rear Wiper and Washer System.

REAR WIPER AND WASHER SYSTEM DIAGNOSIS
CONDITION POSSIBLE CAUSES CORRECTION
WIPER MOTOR DOES NOT OPERATE IN ANY SWITCH POSITION 1. Ineffective motor ground circuit. 1. Test and repair open wiper motor ground circuit if required.
2. Ineffective motor feed circuits. 2. Test and repair motor feed circuit between BCM and rear wiper motor if required.
3. Ineffective SCM inputs or outputs. 3. Use a diagnostic scan tool and the appropriate diagnostic information for further SCM diagnosis.
4. Ineffective BCM inputs or outputs. 4. Use a diagnostic scan tool and the appropriate diagnostic information for further BCM diagnosis.
5. Ineffective wiper motor. 5. Test and replace open or shorted wiper motor if required.
WIPER DOES NOT PARK CORRECTLY 1. Ineffective wiper motor park switch input circuit. 1. Test and repair wiper park switch input circuit between BCM and rear wiper motor if required.
2. Ineffective BCM inputs or outputs. 2. Use a diagnostic scan tool and the appropriate diagnostic information for further BCM diagnosis.
3. Ineffective wiper motor park switch. 3. Test and replace rear wiper motor if required.
WIPER MOTOR OPERATES SLOWLY 1. Ineffective wiper motor. 1. Check amperage draw with wiper arm disconnected from rear wiper motor output shaft. Correct draw should be about 6 amperes. If incorrect, refer to the appropriate Possible Cause that follows:
2. Amperage draw too low. 2. Test and repair shorted rear wiper motor signal and fused ignition switch output (run - accessory) circuits if required.
3. Amperage draw too high. 3. With wiper arm disconnected from wiper motor output shaft check for binding between output shaft and motor output shaft housing. If binding is detected, lubricate if required. If no binding is detected, replace the wiper motor if required.
WASHER PUMP DOES NOT OPERATE 1. Ineffective washer pump ground circuit. 1. Test and repair open washer pump ground circuit if required.
2. Ineffective washer pump feed circuit. 2. Test and repair washer pump feed circuit between BCM and washer pump if required.
3. Ineffective SCM inputs or outputs. 3. Use a diagnostic scan tool and the appropriate diagnostic information for further SCM diagnosis.
4. Ineffective BCM inputs or outputs. 4. Use a diagnostic scan tool and the appropriate diagnostic information for further BCM diagnosis.
5. Ineffective washer pump. 5. Test and replace open or shorted washer pump if required.

SPECIFICATIONS

SPECIFICATIONS

TORQUE SPECIFICATIONS
DESCRIPTION N.m Ft. Lbs. In. Lbs.
Front Wiper Arm Mounting Nuts 20 15 -
Rear Wiper Arm Mounting Nut 9 - 80
Front Wiper Module Mounting Screws 5.5 - 49
Front Wiper Motor Mounting Screws 7.5 - 66
Washer Reservoir Mounting Nuts 7 - 60
Washer Reservoir Mounting Screws 7 - 60

CLEANING

FRONT WASHER SYSTEM

CAUTION:

Never introduce petroleum-based cleaners, solvents, or contaminants into the washer system. These products can rapidly deteriorate the rubber seals and hoses of the washer system, as well as the rubber squeegees of the wiper blades.

CAUTION:

Never use compressed air to flush the washer system plumbing. Compressed air pressures are too great for the washer system plumbing components and will result in further system damage. Never use sharp instruments to clear a plugged washer nozzle or damage to the nozzle orifice and improper nozzle spray patterns will result.

If the washer system is contaminated with foreign material, drain the washer reservoir by removing the washer pump/motor unit from the reservoir. Clean foreign material from the inside of the washer pump inlet filter screen and the washer reservoir using clean washer fluid, a mild detergent or a non-abrasive cleaner. Flush foreign material from the washer system plumbing by first disconnecting the washer hoses from the washer nozzles, then running the washer pump/motor to run clean washer fluid or water through the system. Plugged or restricted front washer nozzles cannot be back-flushed due to the integral check valve mechanism. If the washer nozzle obstruction cannot be cleared, replace the washer nozzle.

FRONT WIPER SYSTEM

CAUTION:

Protect the rubber squeegees of the wiper blades from any petroleum-based cleaners, solvents, or contaminants. These products can rapidly deteriorate the rubber squeegees.

The squeegees of wiper blades exposed to the elements for a long time tend to lose their wiping effectiveness. Periodic cleaning of the squeegees is suggested to remove any deposits of salt or road film. The wiper blades, arms and windshield glass should only be cleaned using a sponge or soft cloth and windshield washer fluid, a mild detergent or a non-abrasive cleaner. If the wiper blades continue to leave streaks, smears, hazing or beading on the glass after thorough cleaning of the squeegees and the glass, the entire wiper blade assembly must be replaced.

REAR WASHER SYSTEM

CAUTION:

Never introduce petroleum-based cleaners, solvents or contaminants into the washer system. These products can rapidly deteriorate the rubber seals and hoses of the washer system, as well as the rubber squeegee of the wiper blade.

CAUTION:

Never use compressed air to flush the washer system plumbing. Compressed air pressures are too great for the washer system plumbing components and will result in further system damage. Never use sharp instruments to clear a plugged washer nozzle or damage to the nozzle orifice and improper nozzle spray patterns will result.

If the washer system is contaminated with foreign material, drain the washer reservoir by removing the washer pump/motor from the reservoir. Clean foreign material from the inside of the washer pump/motor inlet filter screen and the washer reservoir using clean washer fluid, a mild detergent, or a non-abrasive cleaner. Flush foreign material from the washer system plumbing by first disconnecting the washer hose from the rear washer nozzle, then running the washer pump/motor to run clean washer fluid or water through the system. A plugged or restricted rear washer nozzle cannot be back-flushed due to the integral check valve mechanism. If the rear washer nozzle obstruction cannot be cleared, replace the rear washer nozzle.

REAR WIPER SYSTEM

CAUTION:

Protect the rubber squeegee of the wiper blade from any petroleum-based cleaners, solvents or contaminants. These products can rapidly deteriorate the rubber squeegee.

The squeegee of a wiper blade exposed to the elements for a long time tends to lose its wiping effectiveness. Periodic cleaning of the squeegee is suggested to remove any deposits of salt or road film. The wiper blade, arm, and liftgate glass should only be cleaned using a sponge or soft cloth and windshield washer fluid, a mild detergent, or a non-abrasive cleaner. If the wiper blade continues to leave streaks, smears, hazing, or beading on the glass after thorough cleaning of the squeegees and the glass, the entire wiper blade assembly must be replaced.

INSPECTION

FRONT WASHER SYSTEM

The washer system components should be inspected periodically, not just when washer performance problems are experienced. This inspection should include the following points:

  1. Check for ice or other foreign material in the washer reservoir. If contaminated, clean and flush the washer system. Refer to CLEANING.
  2. Inspect the washer plumbing for pinched, leaking, deteriorated or incorrectly routed hoses and damaged or disconnected hose fittings. Replace damaged or deteriorated hoses and hose fittings. Leaking washer hoses can sometimes be repaired by cutting the hose at the leak and splicing it back together using an in-line connector fitting. Similarly, sections of deteriorated hose can be cut out and replaced by splicing in new sections of hose using in-line connector fittings. Whenever routing a washer hose or a wire harness containing a washer hose, it must be routed away from hot, sharp, or moving parts. Also, sharp bends that might pinch the washer hose must be avoided.

FRONT WIPER SYSTEM

Fig. 3: Wiper Blades And Wiper Arms
Courtesy of CHRYSLER GROUP, LLC

The wiper blades and wiper arms should be inspected periodically, not just when wiper performance problems are experienced. This inspection should include the following points:

  1. Carefully inspect the wiper blades for any indications of worn or uneven edges (1), foreign material deposits (2), hardening or cracking (3), deformation or fatigue (4) or splitting (5). Inspect the wiper blade support components and the wiper arms for damage (6) or corrosion. If the wiper arms and blades are contaminated with any foreign material, clean them and the glass as required. Refer to CLEANING. If a wiper blade or arm is damaged, or if corrosion is evident, replace the affected wiper arm or blade with a new unit. Do not attempt to repair a wiper arm or blade that is damaged or corroded.
  2. Carefully lift the wiper blade off of the glass. Note the action of the wiper arm hinge. The wiper arm should pivot freely at the hinge, but with no lateral looseness evident. If there is any binding evident in the wiper arm hinge, or if there is evident lateral play in the wiper arm hinge, replace the wiper arm.

    CAUTION:

    Do not allow the wiper arm to spring back against the glass without the wiper blade in place or the glass may be damaged.

  3. Once proper hinge action of the wiper arm is confirmed, check the hinge for proper spring tension. Remove the wiper blade from the wiper arm. Either place a small postal scale between the blade end of the wiper arm and the glass, or carefully lift the blade end of the arm away from the glass using a small fish scale. On vehicles with unequal wiper arm lengths, be certain that measurements on both arms are taken at a point an equal distance from their wiper arm hinge pins. Compare the scale readings between the right and left wiper arms. Replace a wiper arm if it has comparatively lower spring tension, as evidenced by a lower scale reading.
  4. After cleaning and inspecting the wiper components and the glass, if the wiper blade still fails to clear the glass without smearing, streaking, chattering, hazing or beading, replace the wiper blade.

REAR WASHER SYSTEM

The washer system components should be inspected periodically, not just when washer performance problems are experienced. This inspection should include the following points:

  1. Check for ice or other foreign material in the washer reservoir. If contaminated, clean and flush the washer system. Refer to CLEANING.
  2. Inspect the washer plumbing for pinched, leaking, deteriorated, or incorrectly routed hoses and damaged or disconnected hose fittings. Replace damaged or deteriorated hoses and hose fittings. Leaking washer hoses can sometimes be repaired by cutting the hose at the leak and splicing it back together using an in-line connector fitting. Similarly, sections of deteriorated hose can be cut out and replaced by splicing in new sections of hose using in-line connector fittings. Whenever routing a washer hose or a wire harness containing a washer hose, it must be routed away from hot, sharp, or moving parts. Also, sharp bends that might pinch the washer hose must be avoided.

REAR WIPER SYSTEM

Fig. 4: Inspecting Wiper Blades
Courtesy of CHRYSLER GROUP, LLC

The rear wiper blade and wiper arm should be inspected periodically, not just when wiper performance problems are experienced. This inspection should include the following points:

  1. Carefully inspect the wiper blade for any indications of worn or uneven edges (1), foreign material deposits (2), hardening or cracking (3), deformation or fatigue (4), or splitting (5). Inspect the wiper blade support components and the wiper arm for damage (6). If the wiper arm and blade are contaminated with any foreign material, clean them and the glass as required. Refer to CLEANING. If the wiper blade or arm is damaged, replace it with a new unit. Do not attempt to repair a wiper arm or blade that is damaged or corroded.
  2. Carefully lift the wiper blade off of the glass. Note the action of the wiper arm hinge. The wiper arm should pivot freely at the hinge, but with no lateral looseness evident. If there is any binding evident in the wiper arm hinge, or there is evident lateral play in the wiper arm hinge, replace the wiper arm.

    CAUTION:

    Do not allow the wiper arm to spring back against the glass without the wiper blade in place or the glass may be damaged.

  3. Once proper hinge action of the wiper arm is confirmed, check the hinge for proper spring tension. The spring tension of the wiper arm should be sufficient to cause the rubber squeegee to conform to the curvature of the glass. Replace a wiper arm if it has insufficient spring tension to maintain contact between the squeegee and the glass.
  4. After cleaning and inspecting the wiper components and the glass, if the wiper blade still fails to clear the glass without smearing, streaking, chattering, hazing, or beading, replace the wiper blade.

ARM, WIPER

DESCRIPTION

FRONT

Fig. 5: Stamped Steel Channel, Aluminum Pivot End & Stamped Steel Strap
Courtesy of CHRYSLER GROUP, LLC

The front wiper arms are the rigid members located between the wiper pivots that protrude from the cowl plenum cover/grille panel near the base of the windshield and the wiper blades on the windshield glass. These wiper arms have a somewhat sculpted appearance that actually has a functional purpose. The sculpting is designed to reduce wind buffeting, which helps to reduce wind noise within the passenger compartment of the vehicle.

These wiper arms feature an over-center hinge design that allows easy access to the windshield glass for cleaning. The wiper arm has a die cast aluminum pivot end (2) with a large, internally tapered mounting hole at one end. A molded black plastic cap snaps over the pivot end to conceal the wiper arm retaining nut and the mounting hole following wiper arm installation.

The wide end of a tapered, stamped steel channel (1) hinges on and is secured with a hinge pin to the blade end of the wiper arm pivot end. One end of a rigid stamped steel strap (3), is riveted and crimped within the narrow end of the stamped steel channel. The tip of the wiper blade end of this strap is bent back under itself to form a small hook to cradle the pivot block of the front wiper blade. The entire wiper arm has a satin black finish applied to all of its visible surfaces.

Concealed within the stamped steel channel is a long tension spring which is engaged with a formed wire link hooked over a metal dowel pin that passes through the underside of the pivot end. The opposite end of the spring is hooked over another metal dowel pin that passes through the underside of the steel channel.

The driver and passenger side wiper arms are unique and are not interchangeable. A wiper arm cannot be adjusted or repaired. If damaged or ineffective, the entire wiper arm unit must be replaced.

REAR

Fig. 6: Rear Wiper Arm
Courtesy of CHRYSLER GROUP, LLC

The rear wiper arm is the rigid member located between the rear wiper motor output shaft that protrudes through the liftgate glass above the center of the liftgate glass opening and the wiper blade on the outside of the glass. The wiper arm is constructed of molded black plastic. A hinged pivot end is also molded plastic.

A molded black plastic nut cover (2) with two pivot pins on the back end and snap features on the end nearest the wiper blade fits over the wiper arm retaining nut to conceal the nut and mounting hole following wiper arm installation. The wiper arm hinge and tension spring are concealed on the underside of the wide end of the arm (1), while an integral latch feature (3) concealed on the underside of the narrow end of the wiper arm accepts the pivot pin of the matching molded plastic wiper blade unit.

The rear wiper arm cannot be adjusted or repaired. If damaged or ineffective, the entire wiper arm unit must be replaced.

OPERATION

FRONT

The front wiper arms are designed to mechanically transmit the motion from the wiper pivots to the front wiper blades. The front wiper arm must be properly indexed to the wiper pivot in order to maintain the proper wiper blade travel on the glass. The tapered mounting hole in the wiper arm pivot end interlocks with the serrations on the tapered outer circumference of the wiper pivot shaft, allowing positive engagement and finite adjustment of this connection.

The mounting nut locks the front wiper arm to the threaded stud of the wiper pivot shaft. The spring-loaded wiper arm hinge controls the down-force applied through the tip of the wiper arm to the front wiper blade on the glass. The hook formation on the tip of the wiper arm provides a cradle for securing and latching the wiper blade pivot block to the wiper arm.

REAR

The rear wiper arm is designed to mechanically transmit the motion from the rear wiper motor output shaft to the rear wiper blade. The wiper arm must be properly indexed to the motor output shaft in order to maintain the proper wiper blade travel on the glass. The tapered hole in the wiper arm pivot end interlocks with the serrations on the outer circumference of the tapered motor output shaft, allowing positive engagement and finite adjustment of this connection.

A hex nut secures the wiper arm pivot end to the threads on the rear wiper motor output shaft and the plastic cover snaps over this connection for a neat appearance. The spring-loaded wiper arm hinge controls the down-force applied through the tip of the wiper arm to the wiper blade on the glass. The latch formation on the tip of the wiper arm provides a cradle for securing and latching the wiper blade pivot pin to the wiper arm.

REMOVAL

FRONT

Fig. 7: Front Wiper Arm, Pivot Shaft, Nuts & Caps
Courtesy of CHRYSLER GROUP, LLC

  1. Carefully pry the plastic nut cap (1) off of the pivot end of the wiper arm (4).
  2. Remove the nut (2) that secures the wiper arm to the wiper pivot shaft (3).
  3. Lift the front wiper arm to its over-center position to hold the wiper blade off of the glass and relieve the spring tension on the wiper arm to pivot shaft connection.
  4. Use a slight rocking action to disengage the front wiper arm pivot end from the pivot shaft and remove the wiper arm.

    CAUTION:

    The use of a battery terminal puller when removing the front wiper arm is NOT recommended except as a last resort, as this may damage the front wiper arm.

    Fig. 8: Disengaging Wiper Arm From Pivot Shaft
    Courtesy of CHRYSLER GROUP, LLC

  5. If the rocking action failed to free the wiper arm from the pivot shaft, use a suitable battery terminal puller (3) to disengage the wiper arm (1) from the pivot shaft (2).
  6. Remove the wiper arm pivot end from the pivot shaft.

REAR

Fig. 9: Wiper Arm, Pivot Cover & Nut
Courtesy of CHRYSLER GROUP, LLC

  1. Unsnap and swing the molded plastic pivot cover (1) off of the pivot end of the wiper arm (2).
  2. Remove the nut (3) that secures the wiper arm to the rear wiper motor output shaft.

    CAUTION:

    The use of a battery terminal puller when removing the rear wiper arm is NOT recommended as this may damage the rear wiper arm.

  3. Use a slight rocking action to disengage the rear wiper arm pivot end from the output shaft and remove the wiper arm.

INSTALLATION

FRONT

Fig. 10: Front Wiper Arm, Pivot Shaft, Nuts & Caps
Courtesy of CHRYSLER GROUP, LLC

NOTE:

Be certain that the wiper motor is in the park position before attempting to install the front wiper arms. Transition the status of the ignition switch to On and move the right multifunction switch control knob to its front wiper Off position. If the wiper pivots move, wait until they stop moving, then transition the ignition switch status back to Off. The front wiper motor is now in its park position.

  1. The front wiper arms must be indexed to the pivot shafts with the front wiper motor in the park position to be properly installed. Position the wiper arm pivot end onto the wiper pivot shaft so that the lower edge of the wiper blade is aligned with the wiper alignment marks located near or within the lower margin of the windshield.
  2. Once the wiper blade is aligned, lift the wiper arm away from the windshield slightly to relieve the spring tension on the pivot end and push the pivot end of the wiper arm (4) down firmly and evenly over the pivot shaft (3).
  3. Install and tighten the nut (2) that secures the wiper arm to the pivot shaft. Tighten the nut to 20 N.m (15 ft. lbs.).
  4. Wet the windshield glass, then operate the front wipers. Turn the wiper switch to the Off position, then check for the correct wiper arm alignment position and readjust as required.
  5. Reinstall the plastic cap (1) onto the wiper arm pivot end.

REAR

Fig. 11: Wiper Arm, Pivot Cover & Nut
Courtesy of CHRYSLER GROUP, LLC

NOTE:

Be certain that the rear wiper motor is in the park position before attempting to install the rear wiper arm. Transition the status of the ignition switch to On and move the rear wiper switch to its Off position. If the wiper motor output shaft moves, wait until it stops moving, then transition the status of the ignition switch back to Off. The wiper motor is now in its park position.

  1. The rear wiper arm (2) must be indexed to the rear wiper motor output shaft with the motor in the park position to be properly installed. Position the wiper arm pivot end onto the output shaft so that the tip of the wiper blade is horizontal and parallel with the sine wave rear window defogger grid line at the bottom of the liftgate glass.
  2. With the rear wiper arm properly indexed, push the tapered mounting hole on the pivot end of the wiper arm down over the output shaft.
  3. Install and tighten the nut (3) that secures the rear wiper arm to the output shaft. Tighten the nut to 9 N.m (80 in. lbs.).
  4. Fold and snap the molded plastic pivot cover (1) over the nut on the pivot end of the rear wiper arm.
  5. Wet the liftgate glass and operate the rear wiper. Turn the rear wiper switch to the Off position, then check for correct wiper arm position and readjust as required.

BLADE, WIPER

DESCRIPTION

FRONT

Fig. 12: Blade Covers, Integral Latch & Pivot Block
Courtesy of CHRYSLER GROUP, LLC

Each front wiper blade is secured by an integral latch (2) and an integral pivot block (3) to the hook formation on the tip of each wiper arm, and rests on the glass near the base of the windshield when the wipers are not in operation. These wiper blades have a somewhat sculpted appearance that actually has a functional purpose. The sculpted appearance is due to molded plastic blade covers (1) securely fastened over the bridges and links of the wiper blade. This sculpting is designed to reduce wind buffeting, which helps to reduce wind noise within the passenger compartment of the vehicle.

The wiper blade consists of the following components:

  • Blade Covers - The molded plastic blade covers shield the wiper superstructure and elements to reduce wind buffeting.
  • Element (4) - The wiper element or squeegee is the resilient rubber member of the wiper blade that contacts the glass.
  • Flexor - The flexor is a rigid metal component running along the length of each side of the wiper element where it is gripped by the claws of the superstructure.
  • Superstructure - The superstructure includes several stamped steel bridges and links with claw formations that grip the wiper blade element. Also included in this unit is the latching, molded plastic pivot block that secures the superstructure to the wiper arm. All of the metal components of the wiper blade have a satin black finish applied.

The passenger side wiper blades are 45.00 centimeters (17.71 inches) long. The driver side wiper blades are 65.00 centimeters (25.59 inches) long. They have non-replaceable rubber elements (squeegees). The wiper blades cannot be adjusted or repaired. If ineffective, worn or damaged the entire wiper blade unit must be replaced.

REAR

Fig. 13: Rear Wiper Blade Is Secured By An Integral Pivot Pin
Courtesy of CHRYSLER GROUP, LLC

The rear wiper blade is secured by an integral pivot pin (2) to a receptacle at the tip of the rear wiper arm, and rests near the base of the liftgate glass when the wiper is not in operation. The rear wiper blade consists of the following components:

  • Superstructure (1) - The superstructure includes a molded black plastic bridge and plastic links with claw formations that grip the wiper blade element. Also included in this unit is the pivot pin that secures the superstructure to the wiper arm.
  • Element (3) - The wiper element or squeegee is the resilient rubber member of the wiper blade that contacts the glass.
  • Flexor - The flexor is a rigid metal component running along the length of each side of the wiper element where it is gripped by the claws of the superstructure.

The rear wiper blade is 35 centimeters (13.78 inches) long with a non-replaceable element (squeegee). The wiper blade superstructure cannot be adjusted or repaired. If ineffective, worn or damaged the entire wiper blade unit must be replaced.

OPERATION

FRONT

The wiper blades are moved back and forth across the glass by the wiper arms when the wipers are being operated. The wiper blade superstructure is the flexible frame that grips the wiper blade element and evenly distributes the force of the spring-loaded wiper arm along the length of the element. The combination of the wiper arm force and the flexibility of the superstructure makes the element conform to and maintain proper contact with the glass, even as the blade is moved over the varied curvature that may be encountered across the glass surface.

The wiper element flexor provides the claws of the blade superstructure with a rigid, yet flexible component on the element which can be gripped. The rubber element is designed to be stiff enough to maintain an even cleaning edge as it is drawn across the glass, yet be resilient enough to conform to the glass surface and flip from one cleaning edge to the other each time the wiper blade changes directions.

REAR

The rear wiper blade is moved back and forth across the liftgate glass by the wiper arm when the rear wiper system is in operation. The wiper blade superstructure is the flexible frame that grips the wiper blade element and evenly distributes the force of the spring-loaded wiper arm along the length of the element. The combination of the wiper arm force and the flexibility of the superstructure makes the element conform to and maintain proper contact with the glass, even as the blade is moved over the varied curvature found across the glass surface.

The wiper element flexor provides the claws of the blade superstructure with a rigid, yet flexible component on the element which can be gripped. The rubber element is designed to be stiff enough to maintain an even cleaning edge as it is drawn across the glass, but resilient enough to conform to the glass surface and flip from one cleaning edge to the other each time the wiper blade changes directions.

REMOVAL

FRONT

CAUTION:

Do not allow the wiper arm to spring back against the glass without the wiper blade in place or the glass may be damaged.

Fig. 14: Tab, Wiper Arm & Element
Courtesy of CHRYSLER GROUP, LLC

NOTE:

The notched end of the wiper element flexor should always be oriented towards the end of the wiper blade that is nearest to the wiper pivot.

  1. Lift the wiper arm (2) to raise the wiper blade and element (3) off of the glass, until the wiper arm hinge is in its over-center position.
  2. To remove the blade from the arm, lift or gently pry the latch release tab (1) located just in front of the pivot block at the tip of the arm upward until it stands perpendicular to the wiper arm.
  3. Rotate the lower end of the blade slightly downward (toward the wiper element and away from the wiper arm), then slide the blade away from the tip towards the pivot end of the arm far enough to disengage the pivot block from the hook formation on the end of the arm.
  4. Extract the hook formation on the tip of the wiper arm through the opening in the wiper blade superstructure between the latch and the pivot block.
  5. Gently lower the tip of the wiper arm onto the glass.

REAR

Fig. 15: Rear Wiper Arm & Cover
Courtesy of CHRYSLER GROUP, LLC

  1. Lift the rear wiper arm pivot cover (1) upward to allow the rear wiper blade to be raised off of the glass.

    NOTE:

    The rear wiper arm cannot be raised to its over-center hinge position unless the pivot cover is raised first.

  2. Lift the rear wiper arm (2) to its over-center hinge position to raise the wiper blade and element off of the liftgate glass.

    Fig. 16: Wiper Blade, Wiper Arm, Pivot Pin & Receptacle
    Courtesy of CHRYSLER GROUP, LLC

  3. To remove the wiper blade (3) from the wiper arm (1), grasp the end of the blade nearest to the motor output shaft, then over-rotate it out from under the arm and past its stop far enough to unsnap the blade pivot pin (2) from the receptacle (4) on the end of the arm.
  4. Gently lower the tip of the wiper arm onto the glass.

INSTALLATION

FRONT

CAUTION:

Do not allow the wiper arm to spring back against the glass without the wiper blade in place or the glass may be damaged.

Fig. 17: Tab, Wiper Arm & Element
Courtesy of CHRYSLER GROUP, LLC

NOTE:

The notched end of the wiper element flexor should always be oriented towards the end of the wiper blade that is nearest to the wiper pivot.

  1. Lift the wiper arm (2) off of the windshield glass, until the wiper arm hinge is in its over-center position.
  2. Position the wiper blade and element unit (3) near the hook formation on the tip of the arm with the notched end of the wiper element flexor oriented towards the end of the wiper arm that is nearest to the wiper pivot.
  3. Insert the hook formation on the tip of the arm through the opening in the blade superstructure between the latch (1) and the pivot block far enough to engage the pivot block into the hook.
  4. Slide the pivot block up into the hook formation on the tip of the wiper arm until it is fully engaged.
  5. Rotate the latch release tab down into the blade until it snaps into its locked position. Latch engagement will be accompanied by an audible click.
  6. Gently lower the wiper blade and element onto the glass.

REAR

Fig. 18: Rear Wiper Arm & Cover
Courtesy of CHRYSLER GROUP, LLC

  1. Lift the rear wiper arm pivot cap (1) upward to allow the rear wiper arm to be raised off of the glass.

    NOTE:

    The rear wiper arm cannot be raised to its over-center hinge position unless the pivot cover is raised first.

  2. Lift the rear wiper arm (2) to its over-center hinge position and off of the liftgate glass.

    Fig. 19: Wiper Blade, Wiper Arm, Pivot Pin & Receptacle
    Courtesy of CHRYSLER GROUP, LLC

  3. Position the rear wiper blade (3) with the pivot pin (2) aligned with the opening of the receptacle (4) on the tip of the wiper arm (1).
  4. Using hand pressure, press the wiper blade pivot pin firmly and evenly into the wiper arm receptacle until it snaps into place.
  5. Lower the wiper blade onto the glass and snap the pivot cover back into place.

CHECK VALVE, WASHER

DESCRIPTION

DESCRIPTION

Diaphragm-type washer system check valves are standard equipment in this vehicle. The check valves for the washer system are integral to their respective front and rear washer nozzles. Refer to NOZZLE, WASHER, DESCRIPTION.

OPERATION

OPERATION

Diaphragm-type washer system check valves are standard equipment in this vehicle. The check valves for the washer system are integral to their respective front and rear washer nozzles. Refer to NOZZLE, WASHER, OPERATION.

HOSES AND TUBES, WASHER

DESCRIPTION

FRONT

Fig. 20: Front Washer Plumbing, Rear Washer Plumbing, Hood Plumbing & Body Plumbing
Courtesy of CHRYSLER GROUP, LLC

The reservoir front washer plumbing (4) consists of small diameter rubber hose or hard plastic tubing that is routed along with the reservoir rear washer plumbing (1) from the washer reservoir located on the left outboard Front End Module (FEM) hydroform ahead of the left front wheel housing. The plumbing is attached to its respective front or rear barbed outlet nipple of the washer pump/motor unit near the bottom of the reservoir, then routed through dedicated troughs integral to the reservoir to the left front fender load beam.

Plastic push-in type retainers secure the plumbing to the underside and the outboard side of the load beam. The front and rear plumbing are then connected by molded plastic quick-connect fittings above the left front wheel house. The front plumbing is connected to the hood plumbing (2). The rear plumbing is connected to the body plumbing (3), which is routed through a grommet and a hole in the dash panel into the passenger compartment.

Fig. 21: Hood Plumbing, Hood Panel & Front Washer Nozzle
Courtesy of CHRYSLER GROUP, LLC

The hood plumbing (3) is routed from the load beam to the left hood hinge lower bracket, then to the left hood hinge upper bracket to the hood panel (1) and the inner hood reinforcement. The plumbing is then connected by molded rubber fittings to the barbed nipple of each front washer nozzle (2). The hood plumbing is also secured by plastic push-in type retainers to the load beam, the hood hinge and the inner hood reinforcement.

Washer hose or tube is available for service only as roll stock, which must then be cut to length. The molded plastic washer hose fittings and routing clips cannot be repaired. If these fittings or clips are ineffective or damaged, they must be replaced.

HEADLAMP

The headlamp washer system plumbing consists of a large diameter high pressure rubber supply line that is routed from the outlet nipple of the headlamp washer pump/motor unit on the washer reservoir to one barbed nipple of a wye fitting behind the center of the front fascia. The other two barbed nipples of the wye fitting are connected to two short lengths of supply line that each terminate at a headlamp washer nozzle behind the fascia and below the two front lamp units. The supply line connections at the nozzles and at the headlamp washer pump are secured using molded plastic quick-connect fittings.

Washer hose or tube is available for service only as roll stock, which must then be cut to length. The molded plastic washer plumbing fittings and routing clips cannot be repaired. If these fittings or clips are ineffective or damaged, they must be replaced.

REAR

Fig. 22: Rear Washer Plumbing
Courtesy of CHRYSLER GROUP, LLC

The reservoir rear washer plumbing consists of a small diameter rubber hose or hard plastic tubing that is routed along with the reservoir front washer plumbing from the washer reservoir under the left front fender ahead of the left front wheel house to the outboard side of the left front fender load beam. The plumbing is attached to its respective front or rear barbed outlet nipple of the washer pump/motor unit near the bottom of the reservoir. The plumbing is then secured by plastic push-in type retainers to the load beam.

The reservoir rear washer plumbing is connected by a molded plastic quick-connect fitting to the body rear washer plumbing above the left front wheel house. The body rear washer plumbing then passes from the engine compartment through a hole with a rubber grommet in the dash panel near the belt line to the left cowl side area within the passenger compartment.

The body rear washer plumbing (5) is routed up the inner left A-pillar (6), where it is connected by a molded plastic quick-connect fitting to the headliner rear washer plumbing (3). The plumbing is secured by plastic push-in type retainers (2) to the inner A-pillar. The headliner rear washer hose is secured to the headliner (1) substrate and routed along with the antenna wiring (4) toward the back of the vehicle.

Fig. 23: Headliner, Rear Washer Plumbing & Upper Liftgate Opening Header
Courtesy of CHRYSLER GROUP, LLC

Above the headliner (3) at the back of the vehicle the headliner rear washer plumbing (4) is connected to the liftgate rear washer plumbing (1) by another molded plastic quick-connect fitting. The liftgate rear washer plumbing is routed along with the liftgate wire harness through a clearance hole in the upper liftgate opening header (2) and rubber grommets in the upper liftgate opening trough and the liftgate inner and outer panels to the rear spoiler. The hose is secured to routing clips integral to the Center High Mounted Stop Lamp (CHMSL) housing within the spoiler to the barbed quick-connect nipple of the rear washer nozzle within the liftgate spoiler.

Washer hose or tube is available for service only as roll stock, which must then be cut to length. Portions of the rear washer plumbing is integral to the headliner. The molded plastic washer hose fittings and routing clips cannot be repaired. If these fittings or clips are ineffective or damaged, they must be replaced.

OPERATION

FRONT

Washer fluid in the washer reservoir is pressurized and fed by the washer pump/motor unit through the front washer system plumbing and fittings to the two front washer nozzles. Whenever routing the washer plumbing or a wire harness containing washer plumbing, it must be routed away from hot, sharp, or moving parts; and, sharp bends that might pinch the plumbing must be avoided.

HEADLAMP

Washer fluid in the washer reservoir is pressurized and fed by the headlamp washer pump/motor unit through the headlamp washer system plumbing and fittings to the two telescopic headlamp washer nozzles. Whenever routing the washer plumbing, it must be routed away from hot, sharp, or moving parts; and, sharp bends that might pinch the plumbing must be avoided.

REAR

Washer fluid in the washer reservoir is pressurized and fed by the washer pump/motor unit through the rear washer system plumbing and fittings to the rear washer nozzle. Whenever routing the washer plumbing or a wire harness containing washer plumbing, it must be routed away from hot, sharp or moving parts; and, any sharp bends that might pinch the plumbing must be avoided.

STANDARD PROCEDURE

DISCONNECTING HIGH PRESSURE WASHER PLUMBING QUICK-CONNECT FITTINGS

Fig. 24: Disconnecting High Pressure Washer Plumbing Quick-Connect Fittings
Courtesy of CHRYSLER GROUP, LLC

Molded plastic quick-connect fittings join sections of the high pressure headlamp washer plumbing. To disconnect this fitting:

  1. Push the molded plastic female half of the quick-connect fitting toward the male half quick-connect nipple of the headlamp washer pump, headlamp washer nozzle or other plumbing fitting.
  2. While still pushing the two halves of the connector toward each other, squeeze or pinch the ribbed retainers on each side of the female half of the quick-connect between your thumb and forefinger.
  3. Finally, pull the female half of the quick-connect fitting straight back from the male half quick-connect nipple to disconnect.

    NOTE:

    When reconnecting the quick-connect fitting, align the female half of the fitting to the male half of the fitting. Do not attempt to reconnect using an angled approach. Push the two halves together until an audible click is heard.

DISCONNECTING LOW PRESSURE WASHER PLUMBING QUICK-CONNECT FITTINGS

Fig. 25: Molded Plastic Quick-Connect & Washer Hose Tubes
Courtesy of CHRYSLER GROUP, LLC

Molded plastic quick-connect fittings join sections of the low pressure front and rear washer plumbing. To disconnect this fitting:

  1. Squeeze the two solid sides (not the open sides) of the female half of the quick-connect fitting at the outer edge.
  2. While still squeezing the female half of the fitting, pull the two sections of the washer plumbing away from each other.

DISCONNECTING REAR WASHER NOZZLE QUICK-CONNECT FITTING

Fig. 26: Rear Washer Nozzle Quick-Connect Fitting
Courtesy of CHRYSLER GROUP, LLC

A molded plastic quick-connect fitting (2) joins the rear washer nozzle to the rear washer hose (3). To disconnect this fitting:

  1. Spread apart the two ends of the quick-connect fitting retention collar (1) far enough to release the quick-connect nipple fitting of the rear washer nozzle.
  2. With the quick-connect nipple fitting of the rear washer nozzle released, pull the nozzle and the rear washer hose away from each other to disconnect them.

    NOTE:

    When reconnecting the quick-connect fitting, align the female half of the fitting to the male half of the fitting. Do not attempt to reconnect using an angled approach. Push the two halves together until an audible click is heard.

LINKAGE, WIPER ARM

DESCRIPTION

DESCRIPTION

Fig. 27: Wiper Arm Linkage Components
Courtesy of CHRYSLER GROUP, LLC

The wiper linkage module is secured within the cowl plenum panel beneath the cowl plenum cover/grille panel. The ends of the wiper pivot shafts protrude through dedicated openings in the cowl plenum cover/grille panel to drive the wiper arms and blades and are the only visible components of the wiper linkage module.

The wiper linkage module consists of the following major components:

  • Bracket - The wiper linkage module bracket (2) consists of two tubular members that extend from opposite sides of a die cast center section that serves as the wiper motor mount. Each tubular member has a die cast pivot bracket formation secured at the outboard end where the wiper pivots are secured. The wiper linkage module bracket is secured within the cowl plenum by two screws through two rubber insulators (1).
  • Crank Arm - The wiper motor crank arm is a stamped steel unit with a slotted hole on the driven end that is secured to the wiper motor output shaft with a nut, and has a ball stud secured to the drive end.
  • Linkage - A stamped steel drive link (5) connects the wiper motor crank arm to the left wiper pivot lever arm. A stamped steel connector link (4) connects the left wiper pivot lever arm to the right wiper pivot lever arm. Each link has a plastic socket-type bushing on each end. The bushing on the pivot end of each link is snap-fit over a ball stud on the crank arm or the pivot lever arm.
  • Motor - The wiper motor (3) is secured by a bracket integral to the motor transmission housing with two screws and nuts near the center of the wiper linkage module bracket. A knob-like rubber insulator (6) on a stud integral to the motor transmission housing is engaged in a slot in a stamped bracket on the cowl plenum panel. The two-speed permanent magnet wiper motor features an integral transmission, an internal park switch and an internal automatic resetting circuit breaker. An integral connector receptacle connects the motor to the vehicle electrical system.
  • Pivots - The two front wiper pivots (7) are secured to the ends of the wiper module bracket. The lever arm that extends from the lower end of the left pivot shaft has two ball studs that are engaged with the bushings of the drive and connector links. The lever arm of the right pivot shaft has a single ball stud that is engaged with the bushing of the connector link. The upper end of each pivot shaft where the wiper arms will be fastened each is tapered and serrated with a threaded stud formation at the tip.

The wiper motor and crank arm unit is available for separate service replacement. Any other component of the wiper linkage module cannot be adjusted or repaired. If any component of the module other than the motor is ineffective or damaged, the entire wiper linkage module unit must be replaced.

OPERATION

OPERATION

The wiper linkage module operation is controlled by the battery current inputs received by the wiper motor through the Body Control Module (BCM). The wiper motor speed is controlled by current flow to either the low speed or the high speed set of brushes. The park switch is a single pole, single throw, momentary switch within the wiper motor that is mechanically actuated by the wiper motor transmission components. The park switch alternately closes the wiper park switch sense circuit to ground or to battery current, depending upon the position of the wipers on the glass. This feature allows the motor to complete its current wipe cycle after the wiper system has been turned Off, and to park the wiper blades in the lowest portion of the wipe pattern. The automatic resetting circuit breaker protects the motor from overloads.

The wiper motor crank arm, the two wiper linkage members and the two wiper pivots mechanically convert the rotary output of the wiper motor to the back and forth wiping motion of the wiper arms and blades on the glass.

The hard wired inputs and outputs of the wiper motor may be diagnosed using conventional diagnostic tools and procedures. Refer to the appropriate wiring information. However, conventional diagnostic methods will not prove conclusive in the diagnosis of the wiper motor or the electronic controls and communication between other modules and devices that provide some features of the wiper and washer system. The most reliable, efficient and accurate means to diagnose the wiper motor, the BCM or the electronic controls and communication related to wiper motor operation requires the use of a diagnostic scan tool. Refer to DIAGNOSIS AND TESTING .

REMOVAL

REMOVAL

Fig. 28: Front Wiper Module, Brackets & Fasteners
Courtesy of CHRYSLER GROUP, LLC

  1. Disconnect and isolate the negative cable from the battery.
  2. Remove both front wiper arms from the wiper pivots. Refer to ARM, WIPER, REMOVAL.
  3. Remove the cowl plenum cover/grille panel from over the front wiper module.
  4. Disconnect the wire harness (2) connector from the connector receptacle for the front wiper motor.
  5. Remove the two screws that secure the ends of the front wiper module (1) bracket to the stamped brackets (3 and 5) within the cowl plenum.
  6. Pull the front wiper module inboard far enough to disengage the knob-like rubber isolator from the slotted bracket (4) on the rearward wall of the cowl plenum.
  7. Remove the front wiper module from the cowl plenum as a unit.

INSTALLATION

INSTALLATION

Fig. 29: Front Wiper Module, Brackets & Fasteners
Courtesy of CHRYSLER GROUP, LLC

NOTE:

The wiper motor can be removed from the wiper linkage module and is serviced independently from the remainder of the wiper linkage module for this vehicle. Refer to MOTOR, WIPER, REMOVAL.

  1. Position the wiper linkage module (1) to the cowl as a unit.
  2. Position the knob-like rubber isolator to the slotted bracket (4) on the rear wall of the cowl plenum panel and pull the module outboard far enough to seat the isolator into the bracket.
  3. Starting on the outboard side, install and tighten the two screws that secure the wiper linkage module to the stamped brackets (3 and 5) within the cowl plenum. Tighten the screws to 5.5 N.m (49 in. lbs.).
  4. Reconnect the wire harness connector (2) to the connector receptacle for the wiper motor. Be certain that the connector is fully engaged and locked.
  5. Reinstall the cowl plenum cover/grille panel over the wiper linkage module. Refer to COVER, COWL PANEL, INSTALLATION .
  6. Reinstall both wiper arms onto the wiper pivots. Refer to ARM, WIPER, INSTALLATION.
  7. Reconnect the negative cable to the battery.

MODULE, LIGHT RAIN SENSOR

DESCRIPTION

DESCRIPTION

Fig. 30: Light Rain Sensor Module Components
Courtesy of CHRYSLER GROUP, LLC

The Light Rain Sensor Module (LRSM) (1) is the primary component of the automatic wiper system. The LRSM is also capable of performing an ambient light sensor function; therefore, it is alternately referred to as the Rain Light Sensor Module (RLSM), the Light Sensor Module (LSM) or the Rain Sensor Module (RSM). The LRSM is located on the inside of the windshield glass just below and to the right of the inside rear view mirror mounting button. The LRSM is concealed from view within the vehicle interior by a molded plastic inside rear view mirror bracket trim cover that fits over the top of the LRSM housing and the LRSM mounting bracket, but the LRSM is visible through the windshield glass from the exterior of the vehicle.

The molded black plastic LRSM housing has an integral connector receptacle (2) with three terminal pins. These terminal pins connect the LRSM to the vehicle electrical system through a dedicated take out and connector of the overhead wire harness that extends from above the headliner. The windshield side of the housing is filled with a clear, silicone gelatin (also known as SilGel) adhesive membrane pad (3), which serves as an optical coupler between the sensor and the inside of the windshield glass. A spring steel retaining strap or clip extends forward on each side of the housing to latch the LRSM to a molded black plastic mounting bracket, which is permanently bonded to the inside of the windshield glass.

Concealed and protected within the LRSM housing is the electronic circuitry of the module, which includes an InfraRed (IR) diode and photocell based light and rain sensors, control electronics and Local Interface Network (LIN) data bus communication management hardware. The LRSM is a LIN slave node and communicates over a single LIN bus circuit with the Body Control Module (BCM). The BCM is a LIN master node and a gateway to the Controller Area Network (CAN) data bus. The BCM controls the exchange of electronic messages back and forth between the LRSM and other electronic modules in the vehicle, as well as with a diagnostic scan tool connected to the Data Link Connector (DLC).

The LRSM cannot be adjusted or repaired. If ineffective or damaged, the entire module must be replaced. The silicone gelatin adhesive membrane pad is available for separate service replacement. The LRSM mounting bracket is serviced only as a unit with the windshield glass.

OPERATION

OPERATION

The Light Rain Sensor Module (LRSM) (1) (also known as the Rain Light Sensor Module/RLSM, the Light Sensor Module/LSM or the Rain Sensor Module/RSM) senses moisture and ambient light levels on the outside of the windshield glass and sends electronic messages to the Body Control Module (BCM) over the Local Interface Network (LIN) data bus to give an indication of the monitored conditions. The BCM relays messages back and forth between the LRSM and other electronic modules in the vehicle.

For the rain sensor function, InfraRed (IR) diodes within the LRSM generate infrared light beams that are aimed by the optics of the sensor through the windshield glass, while an IR photo diode monitors the infrared light reflected back from the windshield glass. When sufficient moisture accumulates within the wipe pattern on the windshield glass, less of the infrared light is reflected back and the sensor detects a change in the monitored infrared light intensity. For the light sensor function, an IR photo diode within the sensor monitors the intensity of the ambient infrared light received through the windshield glass and the sensor optics.

The internal programming of the LRSM sends the appropriate electronic wipe command messages to the BCM over the LIN data bus. The BCM then responds by activating or deactivating the wiper system. Similarly, the LRSM provides electronic ambient light level messages to the BCM, and the BCM relays these messages to other electronic modules in the vehicle.

The Steering Control Module (SCM) sends electronic wiper switch status and automatic wipe sensitivity level messages over the Controller Area Network (CAN) data bus to the BCM based upon the driver-selected settings of the control knob on the control stalk of the right multifunction switch. The higher the selected wipe sensitivity setting the more sensitive the LRSM is to the accumulated moisture on the windshield glass, and the more frequently the LRSM will send wipe commands to the BCM to operate the wiper system. The BCM also monitors electronic automatic display brightness level messages based upon the driver-selected settings of the Electronic Vehicle Information Center (EVIC) as well as electronic messages from other electronic modules in the vehicle received over the CAN data bus, then relays the messages to the LRSM over the LIN bus.

The LRSM operates on battery current received through a fused ignition output (run/accessory) circuit. The LRSM has a path to ground at all times through a take out of the body wire harness with an eyelet terminal that is secured to the body sheet metal. Therefore, the LRSM is operational only when the ignition switch status is On or Accessory.

If the BCM receives an electronic status message from the LRSM indicating a sensor failure condition, a Rain Sensor Failure message should be displayed by the Instrument Cluster (IC) (also known as the Instrument Panel Cluster/IPC). It is important to note that the default operation of the automatic wiper system is continuous wipe On, while the default operation for automatic lighting is On. Therefore, if no command message is received by the BCM from the LRSM for more than about five seconds when the Automatic wipe mode is selected, the wipers will default to Low Speed or High Speed continuous wipe operation. Likewise, if no command message is received by the BCM from the LRSM when the Automatic lighting mode is selected, the exterior lighting will default to On. The BCM must be properly configured for the automatic wipers and automatic lighting options in order for these systems to function.

The hard wired circuits of the LRSM may be diagnosed using conventional diagnostic tools and procedures. Refer to the appropriate wiring information. However, conventional diagnostic methods will not prove conclusive in the diagnosis of the LRSM or the electronic controls and communication between other modules and devices that provide some features of the automatic wiper and automatic lighting systems. The most reliable, efficient and accurate means to diagnose the LRSM or the electronic controls and communication related to LRSM operation requires the use of a diagnostic scan tool. Refer to the appropriate diagnostic information.

STANDARD PROCEDURE

PROTECTIVE CAP REMOVAL

Fig. 31: Protective Cap, Adhesive Membrane, LRSM & Latches
Courtesy of CHRYSLER GROUP, LLC

CAUTION:

The Light Rain Sensor Module (LRSM) (3) is equipped with a clear, silicone gelatin (SilGel) adhesive membrane (2) that serves as an optical coupler between the sensor and the windshield glass. Extreme care must be exercised to protect this membrane from contamination before it is installed in the vehicle. The LRSM should always be serviced only in a dust-free environment. Do not touch the membrane with your fingers or tools. The membrane should only come into contact with the clean and dry inside surface of the glass within the mounting bracket bonded to the windshield. The service replacement LRSM is shipped with a clear plastic protective cap (1) installed and secured to the outer circumference of the LRSM by two latch features (4). This protective cap should not be removed until immediately before the LRSM is to be installed using the following procedure.

Fig. 32: Tabs, Protective Cap & LRSM
Courtesy of CHRYSLER GROUP, LLC

  1. Firmly grasp the LRSM (3) by the outer circumference from the side opposite the SilGel membrane pad.
  2. Firmly grasp the protective shipping cap (2) of the LRSM by the two latch release tabs (1) between your thumb and index finger from the SilGel membrane pad side of the module.
  3. Firmly pinch the two latch release tabs together between your thumb and index finger far enough to release the two latch features of the protective cap from the outer circumference of the LRSM.
  4. Pull the protective cap off of the LRSM.
  5. Install the LRSM into the mounting bracket bonded onto the windshield as instructed in the Installation procedure. Refer to MODULE, LIGHT RAIN SENSOR, INSTALLATION.

SILICONE GELATIN PAD REPLACEMENT

Fig. 33: LRSM & Adhesive Membrane
Courtesy of CHRYSLER GROUP, LLC

CAUTION:

The Light Rain Sensor Module (LRSM) is equipped with a clear, silicone gelatin (SilGel) adhesive membrane that serves as an optical coupler between the sensor and the windshield glass. Extreme care must be exercised to protect this membrane from contamination before it is installed in the vehicle. The LRSM should always be serviced only in a dust-free environment. Do not touch the membrane with your fingers or tools. The membrane should only come into contact with the clean and dry inside surface of the glass within the mounting bracket bonded to the windshield. If contaminated, clean any foreign material from the windshield glass using rubbing alcohol and a lint-free cloth. A contaminated SilGel membrane will negatively impact LRSM performance.

CAUTION:

When installing the replacement silicone gelatin (SilGel) adhesive membrane pad onto the Light Rain Sensor Module (LRSM), it is necessary to minimize air pockets trapped between the SilGel membrane and the LRSM. Excessive air pockets will negatively impact LRSM performance. It is important to adhere to the procedure steps in a deliberate manner to achieve satisfactory results.

  1. Carefully peel away the old silicone gelatin adhesive membrane pad (2) from the windshield (optics) side of the Light Rain Sensor Module (LRSM) (1).
  2. Thoroughly clean the windshield (optics) side of the LRSM using isopropyl alcohol and a clean, lint-free cloth.
  3. Using care not to contaminate, touch or damage the replacement pad, peel off the yellow protective foil.

    Fig. 34: Protective Film & Replacement Pad
    Courtesy of CHRYSLER GROUP, LLC

  4. Looking through the transparent protective film (1), align and center the replacement pad (2) over the windshield (optics) side of the LRSM. Then use a slow, smooth and deliberate motion to roll the pad onto the windshield (optics) side of the LRSM.
  5. With the transparent protective film still in place, use a thumb and a firm wiping motion to press the entire surface pad against the windshield (optics) side of the LRSM.
  6. To avoid contamination or damage of the replacement pad, do not remove the transparent protective film until just before reinstalling the LRSM onto the windshield. Refer to MODULE, LIGHT RAIN SENSOR, INSTALLATION.

REMOVAL

REMOVAL

Fig. 35: LRSM, Harness Connector, Mount Bracket & Retaining Strap
Courtesy of CHRYSLER GROUP, LLC

  1. Disconnect and isolate the negative cable from the battery.
  2. Remove the inside rear view mirror from the mounting button (3) on the inside of the windshield glass (2). Refer to MIRROR, REARVIEW, REMOVAL .
  3. Disconnect the wire harness connector (1) from the connector receptacle for the Light Rain Sensor Module (LRSM) (6).
  4. Insert the tip of a small screwdriver into the rectangular cutout on one side of the spring steel retaining strap (5) on the LRSM and carefully pry the end of the strap closest to the glass away from the groove in the mounting bracket (4) on the windshield. Now rotate the loose side of the strap away from the glass far enough to disengage the other side of the strap from the mounting bracket groove.
  5. Firmly grasp the connector receptacle of the LRSM to pull the module away from the windshield glass and the mounting bracket.
  6. If the LRSM will be reinstalled, the silicone gelatin (also known as SilGel) adhesive membrane pad MUST be removed, discarded and replaced with a new unit as described in: Standard Procedure - Silicone Gelatin Pad Replacement. Refer to MODULE, LIGHT RAIN SENSOR, STANDARD PROCEDURE.

INSTALLATION

INSTALLATION

CAUTION:

The Light Rain Sensor Module (LRSM) is equipped with a clear, silicone gelatin (SilGel) adhesive membrane that serves as an optical coupler between the sensor and the windshield glass. Extreme care must be exercised to protect this membrane from contamination before it is installed in the vehicle. The LRSM should always be serviced only in a dust-free environment. Do not touch the membrane with your fingers or tools. The membrane should only come into contact with the clean and dry inside surface of the glass within the mounting bracket bonded to the windshield. If contaminated, clean any foreign material from the windshield glass using rubbing alcohol and a lint-free cloth. A contaminated SilGel membrane will negatively impact LRSM performance.

CAUTION:

When installing the Light Rain Sensor Module (LRSM) it is necessary to minimize air pockets trapped between the SilGel membrane and the windshield glass. Excessive air pockets will negatively impact LRSM performance. It is important to adhere to the procedure steps in a deliberate manner to achieve satisfactory results.

CAUTION:

To avoid excessive air pockets, do not try to install the spring steel retaining strap until AFTER the Light Rain Sensor Module (LRSM) has been successfully positioned to the glass within the mounting bracket bonded to the windshield.

Fig. 36: LRSM & Mounting Bracket
Courtesy of CHRYSLER GROUP, LLC

  1. If a new Light Rain Sensor Module (LRSM) is being installed, remove the protective shipping cap from the LRSM as described in: Standard Procedure - Protective Cap Removal. Refer to MODULE, LIGHT RAIN SENSOR, STANDARD PROCEDURE. If an existing LRSM is being reused, the silicone gelatin (also known as SilGel) adhesive membrane pad MUST be removed, discarded and replaced with a new unit as described in: Standard Procedure - Silicone Gelatin Pad Replacement. Refer to MODULE, LIGHT RAIN SENSOR, STANDARD PROCEDURE.
  2. Grasp the LRSM (2) by the connector receptacle between your thumb and middle finger. Place your index finger on the back of the LRSM at the point opposite the connector receptacle.
  3. Align the LRSM with the mounting bracket (1) bonded onto the inside of the windshield glass near the inside rear view mirror mounting button.
  4. Slowly insert the LRSM into the mounting bracket at a slight angle so that the edge of the module nearest the tip of your index finger makes the initial contact with the windshield glass.
  5. Using a slow, deliberate motion and light pressure, draw your index finger across the back of the LRSM toward the connector receptacle until the silicone gelatin adhesive membrane pad is in full contact with the windshield glass.

    Fig. 37: LRSM, Harness Connector, Mount Bracket & Retaining Strap
    Courtesy of CHRYSLER GROUP, LLC

  6. Engage one side of the spring steel retaining strap (5) into the groove on one side of the LRSM mounting bracket (4) on the inside of the windshield glass (2).
  7. Depress the opposite side of the retaining strap over the LRSM firmly and evenly until it fully engages the groove of the mounting bracket with an audible click.
  8. Looking through the windshield from outside the vehicle, inspect the silicone gelatin adhesive membrane pad for air pockets. If air pockets are observed, let the vehicle stand for about four hours at room temperature to allow the air pockets to dissipate. If an adhesive void (air pocket) greater than about 1 millimeter (0.04 inch) is observed, replace the flawed silicone gelatin adhesive membrane pad with a new unit as described in: Standard Procedure - Silicone Gelatin Pad Replacement. Refer to MODULE, LIGHT RAIN SENSOR, STANDARD PROCEDURE.
  9. Reconnect the wire harness connector (1) to the LRSM connector receptacle (6).
  10. Reinstall the inside rear view mirror to the mounting button (3) on the inside of the windshield glass. Refer to MIRROR, REARVIEW, INSTALLATION .
  11. Reconnect the negative cable to the battery.

NOZZLE, WASHER

DESCRIPTION

FRONT

Fig. 38: Washer Nozzle Components
Courtesy of CHRYSLER GROUP, LLC

The fluidic front washer nozzles (1) are constructed of molded plastic and include an integral check valve. Each nozzle has two integral latches (3) that secure it in a dedicated hole in the hood panel near the base of the windshield. A resilient rubber gasket (2) seals the nozzle to the outer hood panel. The domed upper surface of the washer nozzle is visible on the outside of the hood panel and the nozzle orifices are oriented towards the windshield glass.

An integral diaphragm type check valve is contained within the body of each nozzle. The barbed washer plumbing fittings (4) for the nozzles extend below the hood panel and are accessible from the engine compartment when the hood is opened.

A front washer nozzle cannot be adjusted or repaired and, if ineffective or damaged, it must be replaced.

HEADLAMP

Fig. 39: On-Road Nozzle & Off-Road Nozzle
Courtesy of CHRYSLER GROUP, LLC

Vehicles equipped with the optional headlamp washer system have two static headlamp washer nozzles mounted in the front bumper fascia, one beneath each front lamp unit. Two unique versions of the nozzle are used and they are not interchangeable. The on-road version of the nozzle (1) used in vehicles that are not equipped with the optional off-road front bumper fascia can be identified by a more rounded bezel appearance and a straight quick-connect inlet nipple. The off-road version of the nozzle (2) used in vehicles that are equipped with the optional off-road front bumper fascia can be identified by a more elongated bezel appearance and a right angle quick-connect inlet nipple.

The fixed body of both molded plastic nozzles have a fixed integral mounting clip on the rearward side just below the bezel, and a movable integral mounting clip on the opposite side. Both also have an integral index tab that engages a notch in the front bumper fascia mounting hole. A large diameter high pressure washer fluid supply line from the dedicated headlamp washer pump/motor unit is connected to the inlet nipple on the nozzle body using a molded plastic quick-connect fitting.

The headlamp washer nozzle cannot be adjusted or repaired and, if ineffective or damaged, the nozzle must be replaced with a new unit.

REAR

Fig. 40: Fluidic Rear Washer Nozzle
Courtesy of CHRYSLER GROUP, LLC

The fluidic rear washer nozzle (4) is constructed of molded plastic and includes an integral check valve. The rear washer nozzle is secured by two integral latch features (3) within a mounting hole near the Center High-Mounted Stop Lamp (CHMSL) in the lower surface of the rear spoiler above the liftgate glass opening on the outer liftgate panel.

The outer surface of the washer nozzle is visible on the lower exterior surface of the spoiler, and a rubber gasket seals the nozzle bezel or flange (2) to the spoiler mounting hole. The nozzle orifice (1) is oriented downward towards the liftgate glass. The barbed washer plumbing quick-connect nipple fitting (5) is concealed between the spoiler and the liftgate outer panel.

The rear washer nozzle cannot be adjusted or repaired and, if ineffective or damaged, it must be replaced.

OPERATION

FRONT

The two washer nozzles are designed to dispense washer fluid into the wiper pattern area on the outside of the windshield glass. Pressurized washer fluid is fed to each nozzle from the washer reservoir by the washer pump/motor unit through a single supply line, which is attached to a barbed nipple on each washer nozzle below the hood panel. A fluidic matrix within the washer nozzle causes the pressurized washer fluid to be emitted from the nozzle orifice as an oscillating stream to more effectively cover a larger area of the glass to be cleaned.

The integral check valve in each nozzle prevents washer fluid from draining out of the washer supply lines back to the washer reservoir. This drain-back would result in a lengthy delay after the washer switch is actuated until washer fluid was dispensed through the nozzles, because the washer pump would have to refill the washer plumbing from the reservoir to the nozzles. Such a drain-back condition could also result in water, dirt, or other outside contaminants being drawn into the washer system by a siphoning action through the washer nozzle orifice. This water could subsequently freeze and plug the nozzle, while other contaminants could interfere with proper nozzle operation and cause improper nozzle spray patterns. In addition, the check valve prevents washer fluid from siphoning out through the washer nozzles after the washer system is turned Off.

When the washer pump pressurizes and pumps washer fluid from the reservoir through the washer plumbing, the fluid pressure unseats a diaphragm from over a sump well within the nozzle by overriding the spring pressure applied to it by a piston. With the diaphragm unseated, washer fluid is allowed to flow toward the nozzle orifice. When the washer pump stops operating, the spring pressure on the piston seats the diaphragm over the sump well in the nozzle and fluid flow in either direction within the washer plumbing is prevented.

HEADLAMP

Each time the headlamp washer pump/motor unit is activated, pressure builds within the high pressure supply lines to each headlamp washer nozzle. As the hydraulic pressure is delivered to the nozzle, the nozzle sprays several high pressure streams against the lens of the front lamp unit.

REAR

The rear washer nozzle is designed to dispense washer fluid into the wiper pattern area on the outside of the liftgate glass. Pressurized washer fluid is fed to the nozzle from the washer reservoir by the washer pump/motor through a single supply line, which is attached to a barbed nipple on the back of the nozzle. A fluidic matrix within the nozzle causes the pressurized washer fluid to be emitted from the nozzle orifice as an oscillating stream to more effectively cover a larger area of the glass to be cleaned.

The integral check valve in the nozzle prevents washer fluid from draining out of the washer supply hose back to the washer reservoir. This drain-back would result in a lengthy delay after the washer switch is actuated until washer fluid was dispensed through the nozzle because the washer pump would have to refill the washer plumbing from the reservoir to the nozzle. Such a drain-back condition could also result in water, dirt, or other outside contaminants being siphoned into the washer system through the washer nozzle orifice. This water could subsequently freeze and plug the nozzle, while other contaminants could interfere with proper nozzle operation and cause improper nozzle spray patterns. In addition, the check valve prevents washer fluid from siphoning through the washer nozzle after the washer system is turned Off.

When the washer pump pressurizes and pumps washer fluid from the reservoir through the washer plumbing, the fluid pressure unseats a diaphragm from over a sump well within the nozzle by overriding the spring pressure applied to it by a piston. With the diaphragm unseated, washer fluid is allowed to flow toward the nozzle orifice. When the washer pump stops operating, the spring pressure on the piston seats the diaphragm over the sump well within the nozzle and fluid flow in either direction within the washer plumbing is prevented.

REMOVAL

FRONT

Fig. 41: Hood Plumbing, Hood Panel & Front Washer Nozzle
Courtesy of CHRYSLER GROUP, LLC

  1. From the underside of the hood (1), remove the push-in retainers that secure the rear edge of the hood silencer pad to the inner hood reinforcement as necessary to access the washer nozzle (2) plumbing connections.
  2. From the underside of the hood, disconnect the washer plumbing (3) fitting from the barbed nipple of the washer nozzle.
  3. From the underside of the hood, release the integral latch features of the washer nozzle and push the nozzle out through the mounting hole toward the top side of the hood.
  4. Remove the washer nozzle from the top of the hood panel.

HEADLAMP

Fig. 42: Headlamp Washer Nozzle
Courtesy of CHRYSLER GROUP, LLC

CAUTION:

Take proper precautions to ensure there is no cosmetic damage done to the paint finish of the headlamp washer nozzle cover or the front fascia during the following procedure.

NOTE:

There are two headlamp washer nozzle configurations available for this vehicle: one for vehicles not equipped with an off-road package, and another for vehicles equipped with an off-road package (shown here). However, the removal and installation procedures for these two nozzle configurations is identical.

  1. Remove the front fascia from the vehicle. Refer to FASCIA, FRONT, REMOVAL .
  2. From the back side of the front fascia (1), disconnect the high pressure hose quick-connect fitting from the quick-connect nipple of the headlamp washer nozzle.

    Refer to HOSES AND TUBES, WASHER, STANDARD PROCEDURE.

  3. From the back side of the front fascia, compress the movable mounting clip (2) of the headlamp washer nozzle (3) tightly against the body of the nozzle.
  4. With the movable mounting clip fully compressed, tip the body of the nozzle forward far enough to raise the end of the movable clip through the mounting hole of the front fascia.
  5. Disengage the fixed mounting clip (4) of the nozzle and pull it upward through the mounting hole of the front fascia.
  6. Remove the headlamp washer nozzle from the front fascia.

REAR

Fig. 43: Rear Washer Nozzle
Courtesy of CHRYSLER GROUP, LLC

  1. Remove the liftgate spoiler from the top of the liftgate outer panel. Refer to SPOILER, REMOVAL .
  2. From the interior of the spoiler (1), disengage the rear washer hose from the routing clips on the back of the Center High Mounted Stop Lamp (CHMSL) housing (5).
  3. Disconnect the quick-connect fitting (2) of the washer hose from the quick-connect nipple of the rear washer nozzle (4). Refer to HOSES AND TUBES, WASHER, STANDARD PROCEDURE.
  4. From the interior of the spoiler, release the latch features (3) of the rear washer nozzle and push the nozzle out through the mounting hole to the outside of the spoiler.
  5. Remove the rear washer nozzle from the liftgate spoiler.

INSTALLATION

FRONT

Fig. 44: Hood Plumbing, Hood Panel & Front Washer Nozzle
Courtesy of CHRYSLER GROUP, LLC

  1. Position the washer nozzle (2) to the mounting hole on the outside of the hood panel (1).
  2. Align the anti-rotation tabs of the nozzle with the anti-rotation notches in the mounting hole.
  3. Using hand pressure, push firmly and evenly on the top of the washer nozzle until the integral latch features lock into place on the underside of the hood.
  4. From the underside of the hood, reconnect the washer plumbing (3) fitting to the barbed nipple of the nozzle.
  5. Reinstall the push-in retainers that secure the rear edge of the hood silencer pad to the inner hood reinforcement.

HEADLAMP

Fig. 45: Headlamp Washer Nozzle
Courtesy of CHRYSLER GROUP, LLC

CAUTION:

Take proper precautions to ensure there is no cosmetic damage done to the paint finish of the headlamp washer nozzle cover or the front fascia during the following procedure.

  1. Insert the quick-connect nipple and body of the headlamp washer nozzle (3) into the mounting hole of the front fascia (1).
  2. Engage the fixed mounting clip (4) on the nozzle body through the mounting hole.

    Tilt the nozzle body rearward far enough to engage the movable mounting clip (2) through the mounting hole and until the nozzle bezel is flush with the surface of the front fascia.

  3. From the back side of the front fascia (1), reconnect the high pressure hose quick-connect fitting to the quick-connect nipple of the headlamp washer nozzle.
  4. Reinstall the front fascia onto the vehicle. Refer to FASCIA, FRONT, INSTALLATION .

REAR

Fig. 46: Rear Washer Nozzle
Courtesy of CHRYSLER GROUP, LLC

  1. Position the rear washer nozzle (4) to the mounting hole in the liftgate spoiler (1). Be certain that the rubber gasket is in position on the back of the nozzle bezel or flange.
  2. Using hand pressure, push firmly and evenly on the nozzle bezel or flange until both integral latch features (3) are fully engaged on the inside of the spoiler mounting hole.
  3. Reconnect the washer supply line quick-connect fitting (2) to the quick-connect barbed nipple on the back of the nozzle.
  4. Engage the washer hose into the routing clips on the back of the Center High Mounted Stop Lamp (CHMSL) housing (5).
  5. Reinstall the spoiler onto the liftgate outer panel. Refer to SPOILER, INSTALLATION .

MOTOR, WIPER

DESCRIPTION

FRONT

The front wiper motor is packaged with the wiper linkage module in this vehicle. Refer to LINKAGE, WIPER ARM, DESCRIPTION.

REAR

Fig. 47: Rear Wiper Motor, Motor Output Shaft, Integral Connector Receptacle & Rubber Isolators
Courtesy of CHRYSLER GROUP, LLC

The rear wiper motor is concealed behind the lower liftgate inside trim panel on the liftgate inner panel just below the liftgate glass near the center. The threaded and tapered end of the motor output shaft (1) that extends through the liftgate glass to drive the rear wiper arm and blade is the only visible component of the rear wiper motor. A rubber grommet is engaged within the output shaft clearance hole of the liftgate glass and seals the output shaft housing where it passes through the glass. An integral connector receptacle (4) connects the rear wiper motor to the vehicle electrical system through a dedicated take out and connector of the liftgate wire harness. The rear wiper motor consists of the following major components:

  • Bracket (2) - The rear wiper motor bracket consists of a Stamped metal mounting plate for the wiper motor that is secured with screws to the wiper motor transmission housing. The bracket is secured with screws through three rubber isolators (5) to three mounting points that are integral to the liftgate inner panel.
  • Motor (3) - The single-speed permanent magnet rear wiper motor is secured to the rear wiper motor bracket. The wiper motor includes an integral transmission, the motor output shaft, a park switch and an integral connector receptacle. An automatic resetting circuit breaker and an internal clutch mechanism protect the motor from overloads.

The rear wiper motor cannot be adjusted or repaired. If any component of the motor is ineffective or damaged, the entire rear wiper motor unit must be replaced. The motor output shaft grommet, the mounting hardware and the liftgate glass are available for individual service replacement.

OPERATION

FRONT

The front wiper motor is packaged with the wiper linkage module in this vehicle. Refer to LINKAGE, WIPER ARM, OPERATION.

REAR

The rear wiper motor operation is controlled by the Body Control Module (BCM), which uses relays soldered onto the BCM Printed Circuit Board (PCB) to control rear wiper system operation for energizing or de-energizing the rear wiper motor. The BCM uses internal programming, hard wired inputs received from the right (wiper) multifunction switch and the rear wiper motor park switch as well as electronic messages received over the Controller Area Network (CAN) data bus to provide the rear wiper and washer system operating modes.

The rear wiper motor park switch is a single pole, single throw, momentary switch within the wiper motor that is mechanically actuated by the wiper motor transmission components. The park switch alternately closes and opens a voltage signal for the rear wiper motor electronic control logic circuitry of the BCM. The park switch is normally an open circuit when the rear wiper blade is in the parked position, and is connected to fused ignition output when the rear wiper blade is anywhere except parked.

This park switch input allows the electronic logic circuits of the BCM to control all of the electronic features of rear wiper motor operation and to keep the motor energized long enough to complete its current wipe cycle and park the wiper blade at the base of the glass after the status of the rear wiper system or the ignition switch transitions to Off. The internal BCM circuitry pulls the park switch sense input to ground when the switch is open so that the microcontroller sees a ground when the wiper blade is parked.

The rear wiper motor is grounded at all times through a take out with an eyelet terminal connector in the body wire harness that is secured to a ground location in the passenger compartment. The automatic resetting circuit breaker protects the motor from overloads. The rear wiper motor transmission converts the rotary output of the wiper motor to the back and forth wiping motion of the rear wiper arm and blade on the liftgate glass.

The hard wired inputs and outputs of the rear wiper motor may be diagnosed using conventional diagnostic tools and procedures. Refer to the appropriate wiring information. However, conventional diagnostic methods will not prove conclusive in the diagnosis of the rear wiper motor or the electronic controls and communication between other modules and devices that provide some features of the rear wiper and washer system. The most reliable, efficient and accurate means to diagnose the rear wiper motor or the electronic controls and communication related to rear wiper motor operation requires the use of a diagnostic scan tool. Refer to the appropriate diagnostic information.

REMOVAL

FRONT

Fig. 48: Front Wiper Linkage Module
Courtesy of CHRYSLER GROUP, LLC

CAUTION:

Do not apply pressure to, or pry on the plastic drive link bushings. When removing a drive link from, or installing a drive link onto the ball stud on the wiper motor crank arm apply pressure to, or pry on only the metal portions of the drive link around the bushing. If the bushing is damaged, the entire wiper linkage module MUST be replaced.

CAUTION:

Do not remove the crank arm nut from the wiper motor output shaft. The crank arm is indexed to the output shaft with the motor in the park position during the manufacturing process, but there are no provisions made for correctly indexing this connection in the field. If the crank arm to output shaft indexing is incorrect, the entire wiper motor and crank arm unit MUST be replaced.

  1. Disconnect and isolate the negative cable from the battery.
  2. Remove the front wiper linkage module from the cowl plenum and place it on a suitable work surface. Refer to LINKAGE, WIPER ARM, REMOVAL.
  3. Disengage the socket bushing (1) of the wiper drive link (2) from the ball stud on the wiper motor crank arm (6) using two large screwdrivers, one on each side of the ball stud. Pry firmly and evenly between the crank arm and the metal portion of the drive link until the socket unsnaps from the ball.
  4. Remove the two screws (5) that secure the motor bracket (3) to the module bracket (4).
  5. Remove the wiper motor and crank arm as a unit from the module bracket.

REAR

Fig. 49: Liftgate Glass, Rear Wiper Arm & Output Shaft
Courtesy of CHRYSLER GROUP, LLC

  1. Disconnect and isolate the negative cable from the battery.
  2. From the outside of the liftgate glass (4), remove the rear wiper arm (2) from the rear wiper motor output shaft (5). Refer to ARM, WIPER, REMOVAL.

    Fig. 50: Rear Wiper Motor
    Courtesy of CHRYSLER GROUP, LLC

  3. From the inside of the liftgate, remove the trim from the liftgate inner panel (1). Refer to PANEL, TRIM, REMOVAL .
  4. Disconnect the liftgate wire harness connector (4) from the rear wiper motor (2) connector receptacle.
  5. Remove the three screws (3) that secure the motor mounting bracket to the liftgate inner panel.
  6. Carefully slide the rear wiper motor output shaft and housing out of the grommet installed in the clearance hole of the liftgate glass.
  7. From the outside of the liftgate, remove the output shaft grommet from the clearance hole in the liftgate glass and discard.

INSTALLATION

FRONT

Fig. 51: Front Wiper Linkage Module
Courtesy of CHRYSLER GROUP, LLC

CAUTION:

Do not apply pressure to, or pry on the plastic drive link bushings. When removing a drive link from, or installing a drive link onto the ball stud on the wiper motor crank arm apply pressure to, or pry on only the metal portions of the drive link around the bushing. If the bushing is damaged, the entire wiper linkage module MUST be replaced.

CAUTION:

Do not remove the crank arm nut from the wiper motor output shaft. The crank arm is indexed to the output shaft with the motor in the park position during the manufacturing process, but there are no provisions made for correctly indexing this connection in the field. If the crank arm to output shaft indexing is incorrect, the entire wiper motor and crank arm unit MUST be replaced.

  1. Position the front wiper motor unit to the front wiper module bracket (4).
  2. Install and tighten the two screws (5) into the two nuts that secure the motor bracket (3) to the module bracket. Tighten the screws to 7.5 N.m (66 in. lbs.).
  3. Position the socket bushing (1) of the wiper drive link (2) over the ball stud on the crank arm (6).
  4. Place a short 19 millimeter or 3/4 inch socket over the domed cap side of the socket bushing as an installation tool. Use large channel-lock pliers to firmly and evenly apply enough pressure to the underside of the crank arm and the top of the socket installation tool to snap the bushing onto the ball stud. Do not apply pressure directly to the plastic bushing.

    NOTE:

    Be certain to transition the ignition switch to the On status, then turn the front wiper switch On and Off again to cycle the wiper motor and linkage to their natural park position before reinstalling the front wiper arms onto the wiper pivots.

  5. Reinstall the front wiper linkage module into the vehicle. Refer to LINKAGE, WIPER ARM, INSTALLATION.
  6. Reconnect the negative cable to the battery.

REAR

Fig. 52: Liftgate Glass, Rear Wiper Arm & Output Shaft
Courtesy of CHRYSLER GROUP, LLC

  1. From the outside of the liftgate, install a new rubber grommet (3) into the rear wiper motor output shaft clearance hole of the liftgate glass (4). Always use a new grommet in the glass.

    Fig. 53: Rear Wiper Motor
    Courtesy of CHRYSLER GROUP, LLC

  2. From the inside of the liftgate, position the rear wiper motor (2) output shaft and housing through the grommet in the liftgate glass clearance hole.
  3. Position the rear wiper motor mounting bracket to the liftgate inner panel.
  4. Install and tighten the three screws (3) that secure the motor mounting bracket to the liftgate inner panel. Tighten the screws securely.
  5. Reconnect the liftgate wire harness connector (4) to the rear wiper motor connector receptacle.
  6. Reinstall the trim onto the liftgate inner panel. Refer to PANEL, TRIM, INSTALLATION .
  7. From the outside of the liftgate, reinstall the rear wiper arm onto the motor output shaft. Refer to ARM, WIPER, INSTALLATION.
  8. Reconnect the negative cable to the battery.

PUMP, WINDSHIELD WASHER

DESCRIPTION

FRONT AND REAR

Fig. 54: Washer Pump/Motor
Courtesy of CHRYSLER GROUP, LLC

The washer pump/motor unit is located on the top of a sump area on the outboard side of the washer reservoir, which is located between the left front fender and the left front fender load beam ahead of the left front wheel house splash shield. A small permanently lubricated and sealed reversible electric motor (3) is coupled to the rotor-type washer pump (4). The use of an integral valve body (7) allows the washer pump/motor unit to provide washer fluid to either the front or the rear washer systems, depending upon the direction of the pump impeller rotation.

An inlet nipple (6) on the pump housing passes through a rubber grommet seal/filter screen installed in a dedicated mounting hole of the washer reservoir sump. The filter screen prevents most debris from entering the pump housing. When the pump is installed in the reservoir the front barbed outlet nipple (5) on the pump valve body housing connects the unit to the front washer plumbing, and the rear barbed outlet nipple (8) connects the unit to the rear washer plumbing. The letters F and R molded into the valve body housing adjacent to each nipple provide further clarification of the nipple assignments.

The washer pump/motor unit is retained on the reservoir by the interference fit between the pump inlet nipple and the grommet seal, which is a light press fit. The top of the washer pump is also secured to the washer reservoir by the use of a snap fit between the snap post (2) at the top of the pump motor housing and a receptacle molded into the reservoir that allows for mounting of the washer pump without the use of fasteners. An integral connector receptacle (1) on the top of the motor housing connects the unit to the vehicle electrical system through a dedicated take out and connector of the Front End Module (FEM) wire harness.

The washer pump/motor unit cannot be repaired. If ineffective or damaged, the entire washer pump/motor unit must be replaced. The rubber grommet seal/filter screen is available for separate service replacement.

HEADLAMP

Fig. 55: Headlamp Washer Pump/Motor Unit
Courtesy of CHRYSLER GROUP, LLC

The headlamp washer pump/motor unit (1) of vehicles so equipped is located on the top of a sump area just above and rearward of the reversible front and rear washer pump on the outboard side of the washer reservoir, between the left front fender and left front fender load beam ahead of the left front wheel house splash shield. A small permanently lubricated and sealed electric motor is coupled to the rotor-type washer pump.

An inlet nipple (4) on the bottom of the pump housing (3) passes through a rubber grommet seal/filter screen installed in a dedicated mounting hole of the washer reservoir. When the pump is installed in the reservoir the quick connect outlet nipple (5) on the pump housing points toward the left side of the vehicle and connects the unit to the headlamp washer plumbing.

The headlamp washer pump/motor unit is retained on the reservoir by the interference fit between the pump inlet nipple and the grommet seal, which is a light press fit. The top of the washer pump is also secured to the washer reservoir by a light snap fit into a receptacle molded into the reservoir that allows for mounting of the washer pump without the use of fasteners. An integral connector receptacle (2) on the top of the motor housing connects the unit to the vehicle electrical system through a dedicated take out and connector of the Front End Module (FEM) wire harness.

The headlamp washer pump/motor unit cannot be repaired. If ineffective or damaged, the entire headlamp washer pump/motor unit must be replaced. The rubber grommet seal/filter screen is available for separate service replacement.

OPERATION

FRONT AND REAR

Fig. 56: Washer Pump/Motor Operation
Courtesy of CHRYSLER GROUP, LLC

The washer pump/motor unit features a small Direct Current (DC) reversible electric motor. The direction of the motor is controlled by hard wired outputs from the Body Control Module (BCM). When battery current and ground are applied to the two pump motor terminals, the motor rotates in one direction. When the polarity of these connections is reversed, the motor rotates in the opposite direction. When the pump motor is energized, the rotor-type pump pressurizes the washer fluid and forces it through one of the two pump outlet nipples, and into the front or rear washer plumbing.

The BCM controls the hard wired outputs to the pump motor based upon electronic washer switch status messages received over the Controller Area Network (CAN) data bus from the Steering Control Module (SCM). The SCM monitors analog and digital inputs from the front and rear washer switch circuitry contained within the right multifunction switch to determine the proper electronic messages to send. Whenever the low washer fluid indicator is illuminated, the BCM is programmed to suppress all rear washer requests in order to give priority to the need for forward visibility.

Washer fluid is drawn through the pump inlet nipple from the washer reservoir to the inlet port of the washer pump housing. An integral valve body is located in a housing on the outlet port side (2) of the pump housing. A diaphragm (4) in this valve body controls which washer system plumbing receives the washer fluid being pressurized by the pump.

When the pump impeller (1) rotates in the counterclockwise direction (viewed from the bottom), the biased diaphragm is sealing off the rear washer system outlet and nipple so the pressurized washer fluid is pushed out through the pump front outlet port and the front washer outlet nipple (5). When the pump impeller rotates in the clockwise direction (viewed from the bottom), pressurized washer fluid is pushed out through the pump rear outlet port and moves the diaphragm to open the rear washer outlet nipple and seal off the front washer outlet nipple, then the pressurized washer fluid is pushed out through the rear washer outlet nipple (3).

The washer pump/motor unit and the hard wired motor control circuits from the BCM may be diagnosed using conventional diagnostic tools and procedures. Refer to the appropriate wiring information. However, conventional diagnostic methods will not prove conclusive in the diagnosis of the washer pump/motor unit or the electronic controls and communication between other modules and devices that provide some features of the front and rear wiper and washer system. The most reliable, efficient and accurate means to diagnose the washer pump/motor unit or the electronic controls and communication related to washer pump/motor unit operation requires the use of a diagnostic scan tool. Refer to the appropriate diagnostic information.

HEADLAMP

Headlamp washer pump/motor unit operation is completely controlled by the Body Control Module (BCM) logic circuits based upon electronic headlamp switch and washer switch status messages received from the Steering Control Module (SCM) over the Controller Area Network (CAN) data bus. The SCM monitors hard wired analog and digital inputs from the headlamp switch circuitry of the left multifunction switch and from the front washer switch circuitry of the right multifunction switch to determine the proper status messages to send.

The headlamp washer relay control coil operates on ground received from the BCM, and the BCM will only allow the relay to function while the engine is running. In addition, the BCM will only allow the headlamp washers to operate when the headlamps are turned On. The BCM uses both a Low Side Driver (LSD) to energize or de-energize the headlamp washer relay in the Power Distribution Center (PDC) which, in turn, controls the operation of the headlamp washer pump/motor unit.

The hard wired circuits and components of the headlamp washer pump/motor unit may be diagnosed using conventional diagnostic tools and procedures. Refer to the appropriate wiring information. However, conventional diagnostic methods will not prove conclusive in the diagnosis of the headlamp washer pump/motor or the electronic controls and communication between other modules and devices that provide some features of the headlamp washer system. The most reliable, efficient and accurate means to diagnose the headlamp washer pump/motor unit or the electronic controls and communication related to headlamp washer pump/motor unit operation requires the use of a diagnostic scan tool. Refer to the appropriate diagnostic information.

REMOVAL

FRONT AND REAR

Fig. 57: Washer Pump/Motor Unit
Courtesy of CHRYSLER GROUP, LLC

NOTE:

The washer pump/motor unit may be removed from the washer reservoir without removing the reservoir from the vehicle.

  1. Disconnect and isolate the negative cable from the battery.
  2. Turn the steering wheel to move the front wheels to the full left position.
  3. Raise and support the vehicle.
  4. Remove the plastic push-in fasteners that secure the forward end of the left front wheel house splash shield to the inner fender panel and the front fascia. Refer to SHIELD, SPLASH, FRONT WHEELHOUSE, REMOVAL .
  5. Pull the forward end of the left front wheelhouse splash shield away from the inner fender panel and front fascia far enough to access the washer pump/motor unit (3) on the outboard side of the washer reservoir (1) on the outboard end of the Front End Module (FEM) hydroform.
  6. Disconnect the FEM wire harness connector (2) for the washer pump motor from the motor connector receptacle.

    NOTE:

    To aid in reinstallation, note the installed position of the front and rear washer plumbing fittings (4) prior to disconnecting them from the washer pump.

  7. Disconnect the front and rear washer plumbing fittings from the barbed outlet nipples of the washer pump and allow the washer fluid to drain into a clean container for reuse.
  8. Pull lightly outward on the top of the washer pump/motor housing away from the washer reservoir to disengage the snap post on the top of the motor from the receptacle in the reservoir.
  9. Using hand pressure, firmly grasp and pull the washer pump upward far enough to disengage the pump inlet nipple from the rubber grommet seal/filter screen in the reservoir. Care must be taken not to damage the reservoir.
  10. Remove the washer pump/motor unit from the washer reservoir.
  11. Remove the rubber grommet seal from the washer pump mounting hole in the reservoir and discard.

HEADLAMP

Fig. 58: Headlamp Washer Pump/Motor Unit
Courtesy of CHRYSLER GROUP, LLC

NOTE:

The headlamp washer pump/motor unit may be removed from the washer reservoir without removing the reservoir from the vehicle.

  1. Disconnect and isolate the negative cable from the battery.
  2. Siphon the washer fluid from the washer reservoir into a clean container for reuse.
  3. Turn the steering wheel to move the front wheels to the full left position.
  4. Raise and support the vehicle.
  5. Remove the plastic push-in fasteners that secure the forward end of the left front wheelhouse splash shield to the inner fender panel and the front fascia. Refer to SHIELD, SPLASH, FRONT WHEELHOUSE, REMOVAL .
  6. Pull the forward end of the left front wheelhouse splash shield away from the inner fender panel and front fascia far enough to access the headlamp washer pump/motor unit (3) on the outboard side of the washer reservoir (1) on the outboard end of the Front End Module (FEM) hydroform. The headlamp washer pump is above and behind the reversible front and rear washer pump/motor unit (5).
  7. Disconnect the FEM wire harness connector (2) for the headlamp washer pump motor from the motor connector receptacle.
  8. Disconnect the high pressure headlamp washer supply line quick connect fitting from the headlamp washer pump outlet quick connect nipple. Refer to HOSES AND TUBES, WASHER, STANDARD PROCEDURE.
  9. Pull lightly outward on the top of the headlamp washer pump/motor housing away from the washer reservoir to unsnap it from the molded receptacle in the reservoir.
  10. Using hand pressure, firmly grasp and pull the headlamp washer pump upward far enough to disengage the pump inlet nipple from the rubber grommet seal/filter screen in the reservoir. Care must be taken not to damage the reservoir.
  11. Remove the rubber grommet seal/filter screen from the pump mounting hole in the washer reservoir and discard.

INSTALLATION

FRONT AND REAR

Fig. 59: Washer Pump/Motor Unit
Courtesy of CHRYSLER GROUP, LLC

  1. Lubricate a new rubber grommet seal/filter screen with clean washer fluid and install it into the washer pump mounting hole in the washer reservoir (1). Always use a new rubber grommet seal/filter screen on the reservoir.
  2. Position the inlet nipple on the base of the pump housing of the washer pump/motor unit (3) to the rubber grommet seal/filter screen in the reservoir.
  3. Using hand pressure, press firmly and evenly downward on the top of washer pump/motor unit until the inlet nipple is fully seated in the rubber grommet seal/filter screen in the pump mounting hole of the reservoir.
  4. Align the snap post on the top of the motor housing with the snap post receptacle in the washer reservoir.
  5. Using hand pressure, press firmly and evenly on the top of motor housing until the post snaps into the receptacle.

    NOTE:

    Be certain to reconnect the front and rear washer plumbing fitting to the proper outlet nipples of the washer pump. Failure to properly connect the fittings will cause the front and rear washer systems to operate incorrectly.

  6. Reconnect the front and rear washer plumbing fittings (4) to the barbed outlet nipples of the washer pump.
  7. Reconnect the Front End Module (FEM) wire harness connector (2) for the washer pump/motor unit to the connector receptacle on the top of the motor.
  8. Reinstall the plastic push-in fasteners that secure the left front wheelhouse splash shield to the inner fender panel and the front fascia. Refer to SHIELD, SPLASH, FRONT WHEELHOUSE, INSTALLATION .
  9. Lower the vehicle.
  10. Reconnect the negative cable to the battery.
  11. Refill the washer reservoir with the washer fluid drained from the reservoir during the removal procedure.

HEADLAMP

Fig. 60: Headlamp Washer Pump/Motor Unit
Courtesy of CHRYSLER GROUP, LLC

  1. Install a new rubber grommet seal/filter screen into the headlamp washer pump/motor unit mounting hole in the washer reservoir (1). Always use a new rubber grommet seal on the reservoir.
  2. Position the inlet nipple of the headlamp washer pump/motor unit (3) to the rubber grommet seal/filter screen in the reservoir.
  3. Using hand pressure, press firmly and evenly downward on the headlamp washer pump/motor unit until the inlet nipple is fully seated in the rubber grommet seal/filter screen in the pump mounting hole of the reservoir.
  4. Using hand pressure, press the top of the headlamp washer pump/motor housing firmly inward far enough to engage the snap fit between the motor housing and the molded motor receptacle in the reservoir.
  5. Reconnect the Front End Module (FEM) wire harness connector (2) to the connector receptacle on the top of the pump motor.
  6. Reconnect the headlamp washer high pressure supply line quick connect fitting to the headlamp washer pump outlet quick connect nipple. Refer to HOSES AND TUBES, WASHER, STANDARD PROCEDURE.
  7. Reinstall the plastic push-in fasteners that secure the left front wheelhouse splash shield to the inner fender panel and the front fascia. Refer to SHIELD, SPLASH, FRONT WHEELHOUSE, INSTALLATION .
  8. Lower the vehicle.
  9. Refill the washer reservoir with the washer fluid drained during removal.
  10. Reconnect the negative cable to the battery.

RESERVOIR, WINDSHIELD WASHER

DESCRIPTION

DESCRIPTION

Fig. 61: Windshield Washer Reservoir
Courtesy of CHRYSLER GROUP, LLC

A single washer fluid reservoir (1) is used for both the front and rear washer systems. The molded plastic washer fluid reservoir is mounted on the left outboard side of the Front End Module (FEM) hydroform between the left front fender and the left front fender load beam, ahead of the left front wheel, where it is concealed by the left front wheel house splash shield. The only visible component of the washer reservoir is the filler neck and cap unit (2), which extends upward into the engine compartment just behind the upper radiator cross member. A bright yellow plastic filler cap with a rubber seal and an International Control and Display Symbol icon for Windshield Washer molded into it snaps over the open end of the filler neck. The cap hinges on and is secured to the reservoir filler neck by an integral retainer ring and bail strap.

There are separate, dedicated holes on the outboard side of the reservoir provided for the reversible front and rear washer pump/motor unit (5) and the washer fluid level switch (4). The inboard side of the washer reservoir has integral mounting tabs that are secured to weld studs on the FEM hydroform by two nuts. A mounting tab near the top of the filler neck is secured by a screw to the upper radiator cross member. A mounting tab at the upper rear corner of the reservoir is secured to the battery tray after the FEM is secured to the vehicle. The left front fender wheel house splash shield must be removed to access the washer reservoir for service.

A unique reservoir is used for vehicles manufactured for export markets with the optional High Intensity Discharge (HID) headlamps and the headlamp washer system. This reservoir has a dedicated sump and mounting receptacle for the headlamp washer pump (3) on the outboard side of the reservoir, above and rearward of the reversible front and rear washer pump. The location and mounting provisions for this reservoir are the same as those for vehicles without the headlamp washer system.

The washer reservoir cannot be repaired and, if ineffective or damaged, it must be replaced. The washer reservoir, rubber grommet seals for the washer pump/motor units and the washer fluid level switch as well as the filler cap are each available for individual service replacement.

OPERATION

OPERATION

The washer fluid reservoir provides a secure, on-vehicle storage location for a large reserve of washer fluid for operation of the front and rear washer systems. The washer reservoir filler neck provides a clearly marked and readily accessible point from which to add washer fluid to the reservoir.

The reversible front and rear washer pump/motor unit is located in a sump area near the bottom on the outboard side of the reservoir to be certain that washer fluid will be available to the pump as the fluid level in the reservoir becomes depleted. The front and rear washer pump/motor unit is mounted in the lowest position in the sump. The washer fluid level switch is mounted just above the sump area of the reservoir so that there will be adequate warning to the vehicle operator that the washer fluid level is low, before the front and rear washer systems will no longer operate.

On vehicles equipped with the headlamp washer system the reservoir features a second sump located rearward of and above the front and rear washer pump sump. This allows the front and rear washer systems to remain operational after the washer fluid level falls below the pump inlet for the headlamp washer pump.

REMOVAL

REMOVAL

Fig. 62: Upper Radiator Support, Filler Neck & Screw
Courtesy of CHRYSLER GROUP, LLC

  1. Disconnect and isolate the negative cable from the battery.
  2. Turn the steering wheel to move the front wheels to the full left position.
  3. Remove the screw (3) that secures the washer reservoir filler neck (2) to the upper radiator support (1).

    Fig. 63: Washer Fluid Level Switch, Pump/Motor & Headlamp Washer Pump/Motor
    Courtesy of CHRYSLER GROUP, LLC

  4. Raise and support the vehicle.
  5. Remove the plastic push-in fasteners that secure the forward end of the left front wheelhouse splash shield to the inner fender panel and the front fascia. Refer to SHIELD, SPLASH, FRONT WHEELHOUSE, REMOVAL .
  6. Pull the forward end of the front wheelhouse splash shield away from the inner fender panel and front fascia far enough to access the washer reservoir (4) for service.
  7. Disconnect the Front End Module (FEM) wire harness connectors from the washer fluid level switch (6), the washer pump/motor (7) and, if equipped, the headlamp washer pump/motor (5).

    NOTE:

    To aid in reinstallation, note the installed position of the washer hoses prior to disconnecting them from the washer pump.

  8. Disconnect the front and rear washer hoses from the barbed outlet nipples of the washer pump and allow the washer fluid to drain into a clean container for reuse.
  9. If the vehicle is so equipped, disconnect the headlamp washer supply hose quick-connect fitting from the headlamp washer pump/motor.
  10. Remove the screw (3) that secures the mounting tab on the upper rear corner of the washer reservoir to the battery tray (2).
  11. Remove the two nuts (8) that secure the forward mounting tabs of the washer reservoir to the weld studs on the outboard side of the FEM hydroform (1).
  12. Lower the washer reservoir from the vehicle, rotating it as necessary for clearance.

INSTALLATION

INSTALLATION

Fig. 64: Washer Fluid Level Switch, Pump/Motor & Headlamp Washer Pump/Motor
Courtesy of CHRYSLER GROUP, LLC

  1. Position the washer reservoir (4) into the left front fender wheel house from underneath the vehicle.
  2. Raise the washer reservoir into position, rotating it as necessary for clearance.
  3. Engage the two mounting tabs at the front of the washer reservoir over the weld studs on the outboard side of the Front End Module (FEM) hydroform (1).
  4. Install and tighten the two nuts (8) that secure the washer reservoir to the weld studs on the FEM hydroform. Tighten the nuts to 7 N.m (60 in. lbs.).
  5. Install and tighten the screw (3) that secures the mounting tab on the upper rear corner of the washer reservoir to the battery tray (2). Tighten the screw to 7 N.m (60 in. lbs.).

    NOTE:

    Be certain to reconnect the front and rear washer hoses to the proper outlet nipples of the washer pump. Failure to properly connect the hoses will cause the front and rear washer systems to operate incorrectly.

  6. Reconnect the front and rear washer hoses to the barbed outlet nipples of the washer pump (7).
  7. If the vehicle is so equipped, reconnect the headlamp washer supply hose quick-connect fitting to the outlet nipple of the headlamp washer pump (5).
  8. Reconnect the FEM wire harness connectors to the washer fluid level switch (6), the washer pump/motor and, if equipped, the headlamp washer pump/motor.
  9. Reinstall the plastic push-in fasteners that secure the left front wheelhouse splash shield to the inner fender panel and the front fascia. Refer to SHIELD, SPLASH, FRONT WHEELHOUSE, INSTALLATION .
  10. Lower the vehicle.

    Fig. 65: Upper Radiator Support, Filler Neck & Screw
    Courtesy of CHRYSLER GROUP, LLC

  11. Install and tighten the screw (3) that secures the washer reservoir filler neck (2) mounting tab to the upper radiator cross member (1). Tighten the screw to 7 N.m (60 in. lbs.).
  12. Refill the washer reservoir with the washer fluid drained during removal.
  13. Reconnect the negative cable to the battery.

SWITCH, MULTIFUNCTION, RIGHT

DESCRIPTION

DESCRIPTION

Fig. 66: Steering Column Control Module (SCCM) & Clockspring
Courtesy of CHRYSLER GROUP, LLC

The right (wiper) multifunction switch (3) is integral to the Steering Column Control Module (SCCM) (2), which includes both the left (1) and right multifunction switches, the microcontroller based Steering Control Module (SCM) and serves as the carrier for the clockspring (4). The right multifunction switch is located on the right side of the steering column, just below the steering wheel. This switch is the primary control for the front and rear wiper and washer systems.

Fig. 67: Control Knob, Control Stalk & Right Multifunction Switch
Courtesy of CHRYSLER GROUP, LLC

The only visible components of the switch are the control stalk (1), control knob (2) and control sleeve (3) that extend through the steering column shrouds on the right side of the column. The remainder of the switch including its mounting provisions and electrical connections are concealed within the SCCM beneath the steering column shrouds. The switch controls are constructed of molded black plastic. Each of the switch controls has white International Control and Display Symbol graphics applied to it, which clearly identify its many functions.

The right (wiper) multifunction switch provides the vehicle operator with a control interface for the following wiper and washer system functions:

  • Continuous Front Wipers - The right multifunction switch control knob provides detent switching for two continuous front wipe modes, low speed or high speed.
  • Intermittent Front Wipers - The right multifunction switch control knob provides detent switching for the intermittent front wipe mode with four minor detent delay interval positions. The four delay positions become four sensitivity positions for vehicles equipped with the optional automatic wiper system.
  • Front Wiper Mist Mode - The right multifunction switch control stalk includes momentary switching of the front wiper motor low speed circuit to provide a mist mode features (sometimes referred to as pulse wipe), which allows the vehicle operator to momentarily operate the front wipers for one or more complete cycles.
  • Front Washer Mode - The right multifunction switch control stalk provides momentary switching for control of the front washer system operation.
  • Intermittent Rear Wipe Mode - The right multifunction switch control sleeve provides detent switching for a single fixed interval intermittent rear wiper mode.
  • Rear Washer Mode - The right multifunction switch control stalk provides momentary switching for control of rear washer system operation.

The right multifunction switch cannot be adjusted or repaired. If any function of the switch is ineffective, or if the switch is damaged, the entire SCCM mounting housing, SCM and multifunction switches unit must be replaced. Refer to MODULE, STEERING COLUMN, REMOVAL . The clockspring is available for separate service replacement.

OPERATION

OPERATION

The right (wiper) multifunction switch uses resistor multiplexing to control the many functions and features it provides using a minimal number of hard wired circuits. The switch receives clean grounds from the Steering Control Module (SCM), then provides resistor multiplexed return outputs to the SCM to indicate the selected switch positions. The SCM then sends electronic switch status messages over the Controller Area Network (CAN) data bus to the Body Control Module (BCM) and other electronic modules in the vehicle.

If the SCM detects no inputs from the right multifunction switch, it transmits an electronic Signal Not Available (SNA) status message over the CAN data bus. The SNA status signals the other electronic modules to implement a fail-safe or default mode of operation for the front and rear wiper systems. The fail-safe mode will maintain the last selected front and rear wiper system operation for the remainder of the current ignition cycle, after which both wiper systems will default to Off.

The hard wired inputs and outputs of the SCM may be diagnosed using conventional diagnostic tools and procedures. Refer to the appropriate wiring information. However, conventional diagnostic methods will not prove conclusive in the diagnosis of the right multifunction switch or the electronic controls and communication between other modules and devices that provide some features of the wiper and washer system. The most reliable, efficient and accurate means to diagnose the right multifunction switch or the electronic controls and communication related to right multifunction switch operation requires the use of a diagnostic scan tool. Refer to the appropriate diagnostic information.

Following are descriptions of how the right multifunction switch is operated to control the many front and rear wiper and washer system functions and features it provides:

  • Front Washer Control - The right multifunction switch control stalk is pulled rearward towards the steering wheel to a momentary WASH position to activate the washer pump/motor in the front washer mode. The washer pump/motor will continue to operate for as long as the control stalk is held in this position. The SCM reads the resistor multiplexed input from the right multifunction switch and sends an electronic front washer switch status message over the CAN data bus to the BCM and to other electronic modules in the vehicle.
  • Front Wiper Control - The control knob on the end of the right multifunction switch control stalk is rotated to one of the two continuous wiper detent positions (LO or HI), to one of four intermittent delay or sensitivity wiper detent positions, or to the OFF position to select the front wiper mode. The SCM reads the resistor multiplexed input from the right multifunction switch and sends electronic front wiper switch status messages over the CAN data bus to the BCM and to other electronic modules in the vehicle.
  • Front Wiper Mist Mode - The right multifunction switch control stalk is lifted upward to a momentary MIST position to activate the front wiper MIST mode. The front wiper motor will continue to operate, one complete cycle at a time, for as long as the control stalk is held in this position. The SCM reads the resistor multiplexed input from the right multifunction switch and sends an electronic front wiper switch status message over the CAN data bus to the BCM and to other electronic modules in the vehicle.
  • Rear Washer Control - The right multifunction switch control pushed forward away from the steering wheel to the momentary WASH positions to activate the washer pump/motor in the rear washer mode. The washer pump/motor will continue to operate in the rear washer mode for as long as the control stalk is held in this position. The SCM reads the input from the right multifunction switch and sends an electronic rear washer switch status message over the CAN data bus to the BCM and to other electronic modules in the vehicle.
  • Rear Wiper Control - The rear wiper mode is selected when the right multifunction switch control sleeve is rotated to the fixed interval intermittent rear wipe detent ON position detent position. The SCM reads the input from the right multifunction switch and sends an electronic rear wiper switch status message over the CAN data bus to the BCM and to other electronic modules in the vehicle.

DIAGNOSIS AND TESTING

DIAGNOSIS AND TESTING - RIGHT MULTIFUNCTION SWITCH

The hard wired inputs and outputs of the Steering Control Module (SCM) may be diagnosed using conventional diagnostic tools and procedures. Refer to the appropriate wiring information. However, conventional diagnostic methods will not prove conclusive in the diagnosis of the right multifunction switch or the electronic controls and communication between other modules and devices that provide some features of the wiper and washer system. The most reliable, efficient and accurate means to diagnose the right multifunction switch or the electronic controls and communication related to right multifunction switch operation requires the use of a diagnostic scan tool. Refer to the appropriate diagnostic information.

REMOVAL

REMOVAL

The right multifunction switch is serviced only as a unit with the Steering Column Control Module (SCCM) mounting housing, the Steering Control Module (SCM) and both multifunction switches. Refer to MODULE, STEERING COLUMN, REMOVAL . The clockspring is available for separate service replacement.

INSTALLATION

INSTALLATION

The right multifunction switch is serviced only as a unit with the Steering Column Control Module (SCCM) mounting housing, the Steering Control Module (SCM) and both multifunction switches. Refer to MODULE, STEERING COLUMN, INSTALLATION . The clockspring is available for separate service replacement.

SWITCH, WASHER FLUID LEVEL

DESCRIPTION

DESCRIPTION

Fig. 68: Washer Fluid Level Switch
Courtesy of CHRYSLER GROUP, LLC

The washer fluid level switch is a single pole, single throw reed-type switch mounted just above the sump area near the bottom of the washer reservoir. Only the molded plastic switch mounting flange (1) and the integral connector receptacle (5) are visible when the switch is installed in the reservoir. A short barbed nipple formation extends from the inner surface of the switch mounting flange and is pressed through a rubber grommet seal (4) installed in the mounting hole of the reservoir.

A molded plastic float (3) hangs under a molded plastic beam (2) that extends axially from the switch mounting flange. A small permanent magnet is secured within a receptacle on the bottom of the float, and the reed switch is concealed within the beam.

The washer fluid level switch cannot be adjusted or repaired. If ineffective or damaged, it must be replaced. The grommet seal should be replaced with a new unit each time the switch is removed from the washer reservoir.

OPERATION

OPERATION

The washer fluid level switch uses a float to monitor the level of the washer fluid in the washer reservoir. The float contains a small magnet. When the float moves, the proximity of this magnet to a stationary reed switch within the beam formation of the switch changes. When the fluid level in the washer reservoir is at or above the float level, the float rises and the influence of the float magnetic field is applied to the reed switch causing the normally open reed switch contacts to close. When the fluid level in the washer reservoir falls below the level of the float, the float falls and the influence of the float magnetic field is removed from the reed switch, causing the contacts of the normally open reed switch to open.

The washer fluid level switch is connected to the vehicle electrical system through a dedicated take out and connector of the Front End Module (FEM) wire harness. The switch is connected in series between the washer fluid switch sense and return circuits of the Body Control Module (BCM). When the switch opens, the BCM senses the input on the washer fluid switch return circuit. The BCM is programmed to respond to this input by sending an electronic message to the Instrument Cluster (IC) (also known as the Instrument Panel Cluster/IPC) over the Controller Area Network (CAN) data bus requesting illumination of the low washer fluid indicator and the sounding of an audible chime tone warning.

The washer fluid level switch and the hard wired circuits between the switch and the BCM may be diagnosed using conventional diagnostic tools and procedures. Refer to the appropriate wiring information. However, conventional diagnostic methods will not prove conclusive in the diagnosis of the washer fluid level switch or the electronic controls and communication between other modules and devices that provide some features of the wiper and washer systems. The most reliable, efficient and accurate means to diagnose the washer fluid level switch or the electronic controls and communication related to washer fluid level switch operation requires the use of a diagnostic scan tool. Refer to the appropriate diagnostic information.

REMOVAL

REMOVAL

Fig. 69: Washer Fluid Level Sensor Unit & Connector
Courtesy of CHRYSLER GROUP, LLC

NOTE:

The washer fluid level switch can be removed from the washer reservoir without removing the reservoir from the vehicle.

  1. Disconnect and isolate the negative cable from the battery.
  2. Turn the steering wheel to move the front wheels to the full left position.
  3. Raise and support the vehicle.
  4. Remove the plastic push-in fasteners that secure the forward end of the left front wheel house splash shield to the inner fender panel and the front fascia. Refer to SHIELD, SPLASH, FRONT WHEELHOUSE, REMOVAL .
  5. Pull the forward end of the left front wheel house splash shield away from the inner fender panel and front fascia far enough to access the washer fluid level sensor unit (3) on the outboard side of the washer reservoir (1) on the outboard end of the Front End Module (FEM) hydroform.
  6. Disconnect the FEM wire harness connector (2) for the washer fluid level sensor from the sensor connector receptacle.
  7. Disconnect one of the reservoir washer plumbing fittings from the barbed outlet nipple of the washer pump (4) and allow the washer fluid to drain into a clean container for reuse.
  8. Using a trim stick or another suitable wide flat-bladed tool, gently pry the barbed nipple of the washer fluid level sensor out of the rubber grommet seal on the reservoir just above the sump. Care must be taken not to damage the reservoir.
  9. Remove the washer fluid level sensor from the washer reservoir.
  10. Remove the rubber grommet seal from the washer fluid level sensor mounting hole in the washer reservoir and discard.

INSTALLATION

INSTALLATION

Fig. 70: Washer Fluid Level Sensor Unit & Connector
Courtesy of CHRYSLER GROUP, LLC

  1. Lubricate a new rubber grommet seal with clean washer fluid and install it into the washer fluid level sensor mounting hole in the washer reservoir (1). Always use a new rubber grommet seal on the reservoir.
  2. Insert the float of the washer fluid level sensor (3) through the rubber grommet seal and into the washer reservoir. The flat of the index tab on the washer fluid level switch mounting flange should be pointed downward.
  3. Using hand pressure, press firmly and evenly on the washer fluid level sensor mounting flange until the barbed nipple is fully seated in the rubber grommet seal in the mounting hole of the washer reservoir.
  4. Reconnect the Front End Module (FEM) wire harness connector (2) for the washer fluid level sensor to the sensor connector receptacle.
  5. Reconnect the reservoir washer plumbing fitting to the barbed outlet nipple of the washer pump (4).
  6. Reinstall the plastic push-in fasteners that secure the left front wheel house splash shield to the inner fender panel and the front fascia. Refer to SHIELD, SPLASH, FRONT WHEELHOUSE, INSTALLATION .
  7. Lower the vehicle.
  8. Reconnect the negative cable to the battery.
  9. Refill the washer reservoir with the washer fluid siphoned from the reservoir during the removal procedure.

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