Section 162 (Wiper System & Washer System (Service Information)): Description: Rear
An electrically operated fixed interval intermittent rear wiper and washer system is standard factory-installed 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:
- ElectroMechanical Instrument Cluster - The ElectroMechanical Instrument Cluster (EMIC) (also known as the Cab Compartment Node/CCN) is located on the instrument panel directly in front of the driver. Refer to DESCRIPTION .
- Rear Washer Nozzle (4) - A fluidic rear washer nozzle is secured by integral latch features to a mounting hole on the right side of the Center High Mounted Stop Lamp (CHMSL) on the liftgate outer panel above the liftgate flip-up glass opening.
- Rear Washer Plumbing - The plumbing for the rear washer system consists of rubber hoses and molded rubber or plastic fittings. The plumbing is routed across the front of the engine compartment to the right side of the engine compartment from the washer pump and reservoir on the left side of the cooling module, and through the dash into the passenger compartment. Then it is routed up the right cowl side and A-pillar to the headliner, and above the headliner to the upper liftgate opening header, then through the upper inner liftgate panel to the rear washer nozzle.
- Rear Wiper Arm And Blade (6) - The single rear wiper arm is secured by a nut directly to the rear wiper motor output shaft, which extends through the center of the liftgate outer panel near the base of the liftgate flip-up glass. The rear wiper blade is secured to the rear wiper arm with an integral latch, and is parked off of the glass when the rear wiper system is not in operation.
- Rear Wiper Arm Park Ramp - The molded rubber rear wiper arm park ramp is secured with a screw to the liftgate outer panel to the right of the rear wiper motor output shaft. When the rear wiper system is not in operation, the rear wiper arm is parked off of the glass on this ramp so that it will not interfere with or be damaged by the liftgate flip-up glass operation.
- Rear Wiper Motor (5) - The rear wiper motor includes the motor bracket and three rubber-isolated mounting tabs. The wiper motor output shaft is the only visible component of the rear wiper motor. The remainder of the motor is concealed by the liftgate inner trim just below the liftgate glass opening.
- Right Multi-Function Switch (3) - The right (wiper) multi-function switch and the left (lighting) multi-function switch are secured to brackets integral to the clockspring housing, on the top of the steering column just below the steering wheel. The right multi-function switch is connected by a short jumper harness to the Steering Control Module (SCM), which is internal to the left multi-function switch 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 multi-function switch is dedicated to providing all of the driver controls for both the front and rear wiper and washer systems.
- Steering Control Module - The Steering Control Module (SCM) is internal to the left multi-function switch housing, which is secured to a bracket integral to the left side of the clockspring housing on the top of the steering column just below the steering wheel. Only the left switch control stalk extending from the left side of the steering column is visible, while the remainder of the switch housing containing the SCM is concealed beneath the steering column shrouds. Refer to MODULE, STEERING COLUMN, DESCRIPTION .
- Totally Integrated Power Module (2) - The Totally Integrated Power Module (TIPM) is located in the engine compartment, near the battery. Refer to MODULE, TOTALLY INTEGRATED POWER (TIPM), DESCRIPTION .
- Washer Pump/Motor - The reversible electric washer pump/motor unit is located in a dedicated hole on the lower outboard side of the washer reservoir, on the left side of the cooling module fan shroud. This single reversible washer pump/motor provides washer fluid to either the front or rear washer system plumbing, depending upon the direction of the pump motor rotation.
- Washer Reservoir (1) - The washer reservoir is integral to the coolant reserve bottle, which sits astride the fan shroud of the cooling module. The reservoir filler cap is accessed from the left front corner of the engine compartment.
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.