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

Power, Ground and Illumination


Object Number: 1788125  Size: FS
Master Electrical Component List
Instrument Cluster Description and Operation
Control Module References
Indicators
Underhood Fuse Block IBCM 1 Fuse, BCM AIRBAG (BATT), CLUSTER/THEFT, HVAC CTRL (BATT), IGN SENSOR and RADIO Fuses and Ignition Switch
Underhood Fuse Block IBCM 1 Fuse, BCM AIRBAG (BATT), CLUSTER/THEFT, HVAC CTRL (BATT), IGN SENSOR and RADIO Fuses and Ignition Switch
Underhood Fuse Block IBCM 1 Fuse, BCM AIRBAG (BATT), CLUSTER/THEFT, HVAC CTRL (BATT), IGN SENSOR and RADIO Fuses and Ignition Switch
G201
DLC, Ground, MIL and Power
Power, MIL, DLC, Ignition Switch and Ground
DLC, Ground, MIL and Power
DLC, Ground, MIL and Power
Theft Deterrent System Schematics
Immobilizer Schematics
Figure 2:

Indicators


Object Number: 1788127  Size: FS
Master Electrical Component List
Instrument Cluster Description and Operation
Control Module References
Power, Ground and Illumination
Power, Ground, High Speed GMLAN Serial Data
Low Speed GMLAN Serial Data (1 of 2)