GM Service Manual Online
For 1990-2009 cars only

Headlamp Washer System Components

The headlamp washer system consists of the following components:

    • Headlamp washer pump relay
    • Headlamp washer pump
    • Windshield wiper/washer switch
    • HDLP W/W 15A fuse
    • W/W PUMP 10A fuse

Headlamp Washer System Operation

The headlamp washer pump is controlled by the headlamp washer pump relay. The headlamp washer pump relay requires voltage from the RH headlamp supply circuit and the windshield washer pump control circuit to energize. Battery positive voltage is supplied to the switched side of the relay and is used to power the headlamp washer pump when the relay is energized.