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

Wiper Controls


Object Number: 2064621  Size: FS
Figure 2:

Wiper and Washer Motor Control


Object Number: 2064623  Size: FS
Figure 3:

Outside Moisture Sensor (CE1)


Object Number: 2064625  Size: FS
Figure 4:

Heated Washers (XA7)


Object Number: 2064627  Size: FS