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

Rear Window Defogger


Object Number: 1412249  Size: FS
Master Electrical Component List
Rear Window Defogger Description and Operation
Windshield (WC2/WC8)
Rear Fuse Block Battery Voltage
Rear Fuse Block Battery Voltage
Windshield (WC2/WC8)
Class 2 Serial Data (1 of 3)
Class 2 Serial Data (2 of 3)
TV Antenna Module
Figure 2:

Windshield (WC2/WC8)


Object Number: 1412252  Size: FS
Master Electrical Component List
Rear Window Defogger Description and Operation
Rear Window Defogger
Rear Window Defogger
Underhood Fuse Block Battery Voltage