GM Service Manual Online
For 1990-2009 cars only

The windshield wiper/washer system consists of the following components:

    • A wiper motor assembly
    • A transmission assembly
    • Wiper arm and blade assemblies
    • A washer solvent pump mounted on the side of the washer solvent container
    • A wiper/washer switch

The following functions are controlled by a printed circuit board in the wiper cover assembly:

    • Pulse
    • Timing
    • Demand wash

The wiper motor assembly is equipped with radio frequency interference (RFI) suppression.