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

Power, Ground, and Class 2


Object Number: 885752  Size: FS
Master Electrical Component List
Instrument Cluster Description and Operation
IGN-1, Vent Sol, and SIR Fuses
Serial Data Class 2
G200
G200
IGN-1, Vent Sol, and SIR Fuses
G201 (1 of 2)
G201 (1 of 2)
IP, and CIGAR Fuses
IP, and CIGAR Fuses
Speedometer, Tachometer, and Fuel Indicators
Figure 2:

PCM Signals - Speedometer, Tachometer, and Fuel Indicators


Object Number: 1263033  Size: FS
Master Electrical Component List
Instrument Cluster Description and Operation
Fuel Sensor and EVAP Solenoid Controls
Serial Data Class 2
PCM Signals Engine Oil, and Volt Indicators
Power, Ground, and Class 2
Figure 3:

PCM Signals - Engine Oil and Volt Indicators


Object Number: 1263411  Size: FS
Master Electrical Component List
Instrument Cluster Description and Operation
Serial Data Class 2
G108, G110, and G111 - 4.6L
DIM, PCM, and EBCM Signals Traction, ABS, Brake, Battery and MIL Indicators
Speedometer, Tachometer, and Fuel Indicators
Figure 4:

DIM, PCM, and EBCM Signals - Traction, ABS, Brake, Battery, and MIL Indicators


Object Number: 1263507  Size: FS
Master Electrical Component List
Indicator/Warning Message Description and Operation
Indicators and the Traction Control Switch
IGN-1, Vent Sol, and SIR Fuses
IGN-1, Vent Sol, and SIR Fuses
Brake Warning System Schematic
Brake Warning System Schematic
PCM Power, Ground, Serial Data, and MIL
PCM Power, Ground, Serial Data, and MIL
DIM, RIM, PCM, and VTD Signals Seat Belt, High Beam, Air Bag, and Turn Signal Indicators
PCM Signals Engine Oil, and Volt Indicators
Figure 5:

DIM, RIM, and PCM Signals - Seat Belt, High Beam, Air Bag, and Turn Signal Indicators


Object Number: 1364676  Size: FS
Master Electrical Component List
Indicator/Warning Message Description and Operation
Turn Signal Lamps and Indicators
Systems Monitor Washer Fluid, Check oil Level, Check Gauges, Tire Pressure, Door and Trunk Ajar Indicator
DIM, PCM, and EBCM Signals Traction, ABS, Brake, Battery and MIL Indicators
Figure 6:

Systems Monitor - Washer Fluid, Check Oil Level, Check Gages, Tire Pressure, Door and Trunk Ajar Indicator


Object Number: 766465  Size: FS
Master Electrical Component List
Indicator/Warning Message Description and Operation
Wiper/Washer Motors
Compass
DIM, RIM, PCM, and VTD Signals Seat Belt, High Beam, Air Bag, and Turn Signal Indicators
Figure 7:

Compass


Object Number: 885762  Size: FS
Master Electrical Component List
Instrument Cluster Description and Operation
G302
IGN3 RR, and ABS Fuses (Fuse Block Rear)
IGN3 RR, and ABS Fuses (Fuse Block Rear)
G302
Defogger Schematic
DIC Switch (w/U50)
Systems Monitor Washer Fluid, Check oil Level, Check Gauges, Tire Pressure, Door and Trunk Ajar Indicator
Figure 8:

DIC Switch - w/U50


Object Number: 1364679  Size: FS
Master Electrical Component List
Driver Information Center (DIC) Description and Operation
Coolant Level Switch - 4.6L
Serial Data Class 2
G108, G110, and G111 - 4.6L
G104 and G105 - 3.8L
I/P and Console Dimming
G201 (1 of 2)
G201 (1 of 2)
DIC Switch (w/U2F)
Compass
Figure 9:

DIC Switch - w/U2F


Object Number: 766481  Size: FS
Master Electrical Component List
Driver Information Center (DIC) Description and Operation
Serial Data Class 2
I/P and Console Dimming
G201 (1 of 2)
G201 (1 of 2)
DIC Switch (w/U50)