Headlamp Washer System: Description
An electrically operated headlamp washer system is factory-installed equipment on this vehicle when it is manufactured for certain export markets where it is required. The headlamp washer system includes the following major components, which are described in more detail elsewhere in this service information:
- Headlamp Washer Nozzle - A telescopic headlamp washer nozzle (4) is secured to the front fascia beneath each front lamp unit.
- Headlamp Washer Pump/Motor - The electric headlamp washer pump/motor unit (6) is located in a dedicated hole on the lower, rear side of the washer reservoir, ahead of the right front wheel house splash shield. This high pressure pump is located above and behind the reversible front and rear washer pump/motor unit on the reservoir (5).
- 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 (4) 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 an International Standards Organization (ISO) relay that is located within the Power Distribution Center (PDC) in the engine compartment near the battery.
- Multifunction Switches - The multifunction switches are integral to the Steering Column Control Module (SCCM) on the top of the steering column just below the steering wheel. Both multifunction switches, the clockspring, and the Steering Angle Sensor (SAS) are integral to the SCCM. Only the switch control stalks extending from both sides of the steering column are visible, while the remainder of the SCCM is concealed beneath the steering column shrouds. The multifunction switches are dedicated to providing all of the driver controls for both the front, rear and headlamp wiper and washer systems, as equipped, as well as other vehicle electrical systems. Refer to MODULE, STEERING COLUMN CONTROL (SCCM), DESCRIPTION AND OPERATION .
- Body Control Module - The Body Control Module (BCM) is located in the passenger compartment, near the left side of the steering column. Refer to MODULE, BODY CONTROL (BCM), DESCRIPTION AND OPERATION .
- Washer Reservoir - A unique washer reservoir is used on vehicles equipped with the 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 right inner fender shield and the right outer fender panel, ahead of the right front wheel house splash shield. The filler neck and cap are the only visible components of the reservoir and, are accessed from the right front corner of the engine compartment.
Hardwired circuitry connects the headlamp washer system components to the electrical system of the vehicle. These hardwired 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, 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 .