Wipers and washers (Washers): Description and operation (page 4 of 4)

Headlamp powerwash pump

The headlamp power wash pump consists of a DC motor with an impeller. It is located on the front of the washer fluid reservoir.

The BCU controls operation of the headlamp power wash relay, which supplies battery voltage from fuse 4 located in the engine compartment fuse box to the headlamp power wash pump. When the BCU determines headlamp power wash is to be activated, it provides a ground path for the coil of the headlamp power wash relay. The auxiliary relay located in the engine compartment fuse box supplies the headlamp power wash relay coil with battery voltage.