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

Power, Ground, Class 2 and 54V, VF Display Supply


Object Number: 663133  Size: FS
Master Electrical Component List
Instrument Cluster Description and Operation
Gauges
Class 2 Dimming Communication
G200
G200
Class 2 Serial Data (1 of 3)
SIR, Vent Sol, and IGN 1 Fuses
SIR, Vent Sol, and IGN 1 Fuses
ALDL, PCM BATT, IP Fuses
Figure 2:

Gauges


Object Number: 663135  Size: FS
Master Electrical Component List
Instrument Cluster Description and Operation
Brakes and Engine Indicators
Power, Ground, Class 2 and 54V, VF Display Supply
Class 2 Serial Data (1 of 3)
Engine and Fuel Tank Sensors
Cruise Control and Vehicle Speed Signal
Figure 3:

Brakes and Engine Indicators


Object Number: 663137  Size: FS
Master Electrical Component List
Instrument Cluster Description and Operation
Lighting, Restraints, Security, and Cruise Indicators
Gauges
MIL Control and DLC
G100
Class 2 Serial Data (1 of 3)
Park Brake System
Brake Warning System
Indicators and Traction Control Switch
SIR, Vent Sol, and IGN 1 Fuses
SIR, Vent Sol, and IGN 1 Fuses
Figure 4:

Lighting, Restraints, Security, and Cruise Indicators


Object Number: 663140  Size: FS
Master Electrical Component List
Instrument Cluster Description and Operation
Driver Information Center
Brakes and Engine Indicators
Front Park/Turn and Repeater Lamps
Front Park/Turn and Side Marker Lamps
Front Park/Turn and Side Marker Lamps
Front Park/Turn and Side Marker Lamps
Class 2 Serial Data (1 of 3)
Figure 5:

Driver Information Center


Object Number: 663141  Size: FS
Master Electrical Component List
Instrument Cluster Description and Operation
Rear Compartment Lid Ajar Signal
Lighting, Restraints, Security, and Cruise Indicators
G201 IP Harness and Console Harness
G201 IP Harness and Console Harness
G100
Class 2 Serial Data (1 of 3)
Engine Coolant Level Switch Signal
Washer Solvent Level Switch