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

Tail Relay, Turn Signal Headlamp Switch


Object Number: 1426502  Size: FS
Master Electrical Component List
Exterior Lighting Systems Description and Operation
Control Module References
Park Lamps
Power, AM 1, Door, Tail, P/Point, ECU-B, Stop, OBD, INV Fuses
Junction Block Instrument Panel - Left
SP200 and G200
Figure 2:

Park Lamps


Object Number: 1426503  Size: FS
Master Electrical Component List
Exterior Lighting Systems Description and Operation
Control Module References
Turn Signal/Headlamp Switch, Hazard Switch, Flasher Relay
Tail Relay, Turn Signal/Headlamp Switch
SP400
SP300
G100, G101, G102
S103, G103
G202, G300, G301, G302
G202, G300, G301, G302
G202, G300, G301, G302
Figure 3:

Turn Signal/Headlamp Switch, Hazard Switch, Flasher Relay


Object Number: 1426514  Size: FS
Master Electrical Component List
Exterior Lighting Systems Description and Operation
Control Module References
Turn Indicators and Lamps
Park Lamps
Wash, RR WIP, Wiper, ECU-IG, Gage, Heater, DEF Fuses
Air Pump, ETCS, Head, Alt S, EFI, Hazard EFI 2 Fuses
Junction Block - Instrument Panel Right
Junction Block Instrument Panel - Left
Junction Block Instrument Panel - Right
IP Lamp Dimmer
SP200 and G200
SP200 and G200
SP201 and G201
Figure 4:

Turn Indicators and Lamps


Object Number: 1426546  Size: FS
Master Electrical Component List
Exterior Lighting Systems Description and Operation
Control Module References
Stop Lamps
Turn Signal/Headlamp Switch, Hazard Switch, Flasher Relay
Brake, ABS, Turn Indicators
SP300
Junction Block Instrument Panel - Left
SP200 and G200
S103, G103
G202, G300, G301, G302
G202, G300, G301, G302
G100, G101, G102
Figure 5:

Stop Lamps


Object Number: 1426573  Size: FS
Master Electrical Component List
Exterior Lighting Systems Description and Operation
Control Module References
Back Up Lamps
Turn Indicators and Lamps
Power, AM 1, Door, Tail, P/Point, ECU-B, Stop, OBD, INV Fuses
Ignition Switch 1 of 2
Fuel Injectors
Ignition Switch 1 of 2
SP300
G202, G300, G301, G302
G202, G300, G301, G302
Figure 6:

Backup Lamps


Object Number: 1426604  Size: FS
Master Electrical Component List
Exterior Lighting Systems Description and Operation
Control Module References
Stop Lamps
Wash, RR WIP, Wiper, ECU-IG, Gage, Heater, DEF Fuses
Junction Block - Instrument Panel Right
Junction Block - Instrument Panel Right
SP300
G202, G300, G301, G302
G202, G300, G301, G302