Section 67 (Wiper System & Washer System (Service Information)): Description: Rear

WARNING: This page is about a different car, the 2017 Jeep Cherokee. However, it is still accessible from the selected car via links, so may be relevant.

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 (BCM), DESCRIPTION .
Right Multifunction Switch - The right (wiper) multifunction switch is integral to the Steering Column Control Module (SCCM) along with the clockspring and the left (lighting) multifunction switch on the top of the steering column just below the steering wheel. The multifunction switches are connected to a microcontroller within the SCCM. Only the switch control stalks extending from the sides of the steering column are visible, while the remainder of the switches are 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. Refer to MODULE, STEERING COLUMN CONTROL (SCCM), DESCRIPTION .

The BCM and the SCCM each contain a microcontroller and programming that allow them to communicate with each other and other electronic modules in the vehicle using the CAN data bus. Refer to COMMUNICATION, 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, details of wire harness routing and retention, connector pin-out information and location views for the various wire harness connectors, splices and grounds. For proper wire repair, and connector repair procedures. Refer to WIRE SPLICING or REMOVAL or INSTALLATION .