GM Service Manual Online
For 1990-2009 cars only
Figure 1:

Wiper Controls


Object Number: 1884012  Size: FS
Master Electrical Component List
Wiper/Washer System Description and Operation Wiper and Washers
Control Module References
Wiper and Washer Motor Control
Figure 2:

Wiper and Washer Motor Control


Object Number: 1925491  Size: FS
Master Electrical Component List
Wiper/Washer System Description and Operation Wiper and Washers
Control Module References
Wiper Controls