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

Interior Lights - Inputs


Object Number: 1527408  Size: FS
Master Electrical Component List
Interior Lighting Systems Description and Operation
Control Module References
Interior Lights Outputs
Body Rear End
ABS, Brake Warning, Cruise Control, Door Lock/Indicator, Engine Controls and Engine Cooling References
G401 - 2 of 2
G301 - 2 of 2
Figure 2:

Interior Lights - Outputs


Object Number: 1527409  Size: FS
Master Electrical Component List
Interior Lighting Systems Description and Operation
Control Module References
Interior Lights Inputs
RDO Fuse, DR LCK Fuse, INT LIGHTS Fuse, PWR WNDW Fuse, S ROOF Fuse, ECM/TCM Fuse, SDM Fuse, RAP Relay, INTERIOR LAMPS PCB Relay, Door Lock PCB Relays
Inside Rearview Mirror
OnStar Schematics
G401 - 2 of 2