Front Wiper And Washer System
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:
- Body Control Module - The Body Control Module (BCM) is located in the passenger compartment beneath the driver side end of the instrument panel. Refer to DESCRIPTION .
- Front Washer Check Valve - The front washer system check valve is integral to the wye fitting located in the washer plumbing between the engine compartment washer hose and the washer nozzle supply hoses and is concealed beneath the cowl plenum cover/grille panel at the base of the windshield.
- Front Washer Nozzle (2) - Two adjustable front washer nozzles are secured by latch features to dedicated openings in the cowl plenum cover/grille panel near the base of the windshield.
- Front Washer Plumbing - The plumbing for the front washer system consists of rubber hoses and molded rubber or plastic fittings. The plumbing is routed to the engine compartment from the washer reservoir. The front washer hose is routed along the right side of the engine compartment to the cowl plenum panel, then across the underside of the cowl plenum cover/grille panel to the washer nozzles.
- Front Wiper Arms And Blades (4) - 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 unequal length 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.
- Front Wiper Linkage Module (3) - The wiper pivot shafts are the only visible components of the front wiper linkage 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, a wiper drive link, a wiper connector link and two wiper pivots.
- Right Multifunction Switch (5) - The right (wiper) multifunction switch and the left (lighting) multifunction switch are integral to the clockspring and stalk unit on the top of the steering column just below the steering wheel. 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 is dedicated to providing all of the driver controls for both the front and rear wiper and washer systems.
- 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 right front wheel house. 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 located between the right front fender and the right inner fender shield, just ahead of the right front wheel house. The filler neck and cap are accessed from the right front corner of the engine compartment.
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.