GM Service Manual Online
For 1990-2009 cars only

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

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

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

    â€¢ Pulse
    â€¢ Timing
    â€¢ Demand wash

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