GM Service Manual Online
For 1990-2009 cars only

The windshield wiper/washer system consists of a wiper/washer switch, washer solvent container with a pump, a wiper arm and blade assemblies, and a wiper drive system. The wiper drive system is installed on the vehicle as a module. The wiper drive system module consists of a wiper motor assembly and wiper transmission assembly assembled on a tube frame.

The wiper/washer system is a pulse (delay) type. Pulse timing and demand wash functions are controlled electronically.