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

Front Wiper/Washer


Object Number: 1861246  Size: FS
Master Electrical Component List
Wiper/Washer System Description and Operation
Control Module References
Rear Wiper Schematics
B+ BUS 1 of 2
G103, G105, G107, G108, and G109
G101
Figure 2:

Rear Wiper/Washer


Object Number: 1861249  Size: FS
Master Electrical Component List
Wiper/Washer System Description and Operation
Control Module References
Front Wiper Schematics
B+ BUS 1 of 2
Door Lock/Indicator Schematics
G401
G201