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

Dimming Control: Right Air Temperature Assembly, Ashtray, and Heated Seat Switch Backlighting


Object Number: 661648  Size: FS
Master Electrical Component List
Interior Lighting Systems Description and Operation
I/P and Front Door Backlighting
I/P and Front Door Backlighting
VF Dimming and Control
Headlamp Switch and Park Lamp Control
G202 (2 of 4)
G202 (1 of 4)
G201 (1 of 2)
G201 (2 of 2)
G201 (2 of 2)
G201 (2 of 2)
Figure 2:

IP and Front Door Backlighting


Object Number: 661650  Size: FS
Master Electrical Component List
Interior Lighting Systems Description and Operation
VF Dimming and Control
Dimming Control: Right Air Temperature Assembly, Ashtray, and Heated Seat Switch Backlighting
Dimming Control: Right Air Temperature Assembly, Ashtray, and Heated Seat Switch Backlighting
VF Dimming and Control
SIR Caution for Zoning
SIR Caution for Zoning
G202 (2 of 4)
G202 (1 of 4)
G202 (4 of 4)
G202 (4 of 4)
G202 (4 of 4)
Figure 3:

VF Dimming and Control


Object Number: 661651  Size: FS
Master Electrical Component List
Interior Lighting Systems Description and Operation
I/P and Front Door Backlighting
Left Underhood Fuse Block- OXY SEN and SBM LCM Fuses
Right Underhood Fuse Block- PWR WDO Circuit Breaker/Rear Fuse Block- RDO/PH, SUNRF Fuses and RAP Relay
Left Underhood Fuse Block- OXY SEN and SBM LCM Fuses
Right Underhood Fuse Block- PWR WDO Circuit Breaker/Rear Fuse Block- RDO/PH, SUNRF Fuses and RAP Relay
I/P and Front Door Backlighting
Dimming Control: Right Air Temperature Assembly, Ashtray, and Heated Seat Switch Backlighting