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

Rear Window Defogger Control


Object Number: 847555  Size: FS
Master Electrical Component List
Rear Window Defogger Description and Operation
Defogger Grid and Ground
IGN 1 Relay Bus, SEO B2, RR DEFOG, SEO IGN, B/U LP
IGN 1 Relay Bus, SEO B2, RR DEFOG, SEO IGN, B/U LP
SP205 - 1 of 2
Defogger Grid and Ground
Figure 2:

Defogger Grid and Ground


Object Number: 847557  Size: FS
Master Electrical Component List
Rear Window Defogger Description and Operation
Rear Window Defogger Control
Rear Window Defogger Control
G306
Cargo Door and Liftgate Switches
G410 - 1 Of 3
G410 - 3 Of 3
G410 - 2 Of 3
G410 - 1 Of 3
G410 - 3 Of 3