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

Wiper System Power and Ground


Object Number: 1885465  Size: FS
Master Electrical Component List
Wiper/Washer System Description and Operation (Wiper and Washers)
Control Module References
Outside Moisture Sensor and Windshield Washer Solvent Heater
Figure 2:

Outside Moisture Sensor and Windshield Washer Solvent Heater


Object Number: 1885467  Size: FS
Master Electrical Component List
Wiper/Washer System Description and Operation (Heated Washer System)
Control Module References
Wiper System Power and Ground