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

Ambient Light Sensor, Brake Pedal Position Sensor, Hazard Switch and Turn Signal/Multifunction Switch


Object Number: 1807476  Size: FS
Master Electrical Component List
Exterior Lighting Systems Description and Operation
Control Module References
Stop Lamps
Low Speed Serial Data
Power, Ground and High Speed Serial Data
Air Temperature and Mode Controls
Headlights/Daytime Running Lights (DRL) Schematics
G201
Displays
G203
Figure 2:

Stop Lamps


Object Number: 1807478  Size: FS
Master Electrical Component List
Exterior Lighting Systems Description and Operation
Control Module References
Turn Signal Lamps
Ambient Light Sensor, Brake Pedal Position Sensor, Hazard Switch and Turn Signal/Multifunction Switch
Marker Lamps and Tail Lamps
Marker Lamps and Tail Lamps
G401 and G403
G302
G401 and G403
G401 and G403
Figure 3:

Turn Signal Lamps


Object Number: 1845041  Size: FS
Master Electrical Component List
Exterior Lighting Systems Description and Operation
Control Module References
Marker Lamps and Tail Lamps
Stop Lamps
Marker Lamps and Tail Lamps
Marker Lamps and Tail Lamps
G101 and G102
G401 and G403
G401 and G403
G101 and G102
Figure 4:

Marker Lamps and Tail Lamps


Object Number: 1807481  Size: FS
Master Electrical Component List
Exterior Lighting Systems Description and Operation
Control Module References
Backup Lamps and License Lamps
Turn Signal Lamps
Underhood Fuse Block RUN RLY, RBEC2, Body Control Module (BCM), HVAC BLOWER, HVAC CTRL (IGN) Rear Fuse Block, DRV ST, EMISSION 2, FUEL PUMP, PARK LAMPS and TRUNK Fuses
Backup Lamps and License Lamps
G101 and G102
G101 and G102
G401 and G403
G401 and G403
Figure 5:

Backup Lamps and License Lamps


Object Number: 1807482  Size: FS
Master Electrical Component List
Exterior Lighting Systems Description and Operation
Control Module References
Marker Lamps and Tail Lamps
Underhood Fuse Block RBEC1 and Rear Fuse Block , BCK/UP Lamps, CIG/AUX, HTD MIR, HTD SEAT, RKE/XM RR DEFOG and S/ROOF Fuses
Marker Lamps and Tail Lamps
Universal Garage Door Opener
G305
Inside Rearview Mirror Schematics
G401 and G403
G305
G401 and G403
G401 and G403
G401 and G403