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

Courtesy Lamps


Object Number: 688430  Size: FS
Master Electrical Component List
Interior Lighting Systems Description and Operation
Vanity Mirror, Inside Rearview Mirror, Underhood and Instrument Panel Compartment Lamps
Fuse Block-I/P Bussing (2 of 2)
Vanity Mirror, Inside Rearview Mirror, Underhood and Instrument Panel Compartment Lamps
Star Connectors
Rear Compartment Lid Release Control and Rear Compartment Lid Ajar Switch (Hardtop/Convertible)
Driver Door Module (DDM) Power, Ground and DLC
G201
G201
G202
G301, G402 and G302
Figure 2:

Vanity Mirror, Inside Rearview Mirror, Underhood and Instrument Panel Compartment Lamps


Object Number: 688434  Size: FS
Master Electrical Component List
Interior Lighting Systems Description and Operation
Inside Rearview Mirror Switch Backlight
Courtesy Lamps
Fuse Block-I/P Bussing (1 of 2)
G202
G202
G101 and G102
Fuse Block-I/P Fuses 50, 14, 21, 22, 18 and Relay 44
G202
Courtesy Lamps
Fuse Block-I/P Fuses 50, 14, 21, 22, 18 and Relay 44
Figure 3:

Inside Rearview Mirror Switch Backlight


Object Number: 688441  Size: FS
Master Electrical Component List
Interior Lighting Systems Description and Operation
Vanity Mirror, Inside Rearview Mirror, Underhood and Instrument Panel Compartment Lamps
Fuse Block-I/P Bussing (2 of 2)
Fog Lamp Switch
Front Parklamps
G202
G202
Fog Lamp Switch