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

Power, Ground and Illumination


Object Number: 1640215  Size: FS
Master Electrical Component List
Instrument Cluster Description and Operation
Control Module References
Indicators
Underhood Fuse Block IBCM 1, Body Control Module (BCM), AIRBAG (BATT), CLUSTER/THEFT, HVAC CTRL (BATT), IGN SENSOR and RADIO Fuses
Underhood Fuse Block IBCM 1, Body Control Module (BCM), AIRBAG (BATT), CLUSTER/THEFT, HVAC CTRL (BATT), IGN SENSOR and RADIO Fuses
Underhood Fuse Block IBCM 1, Body Control Module (BCM), AIRBAG (BATT), CLUSTER/THEFT, HVAC CTRL (BATT), IGN SENSOR and RADIO Fuses
G201
DLC, Ground, MIL and Power
DLC, Ground, MIL and Power
DLC, Ground, MIL and Power
Vehicle Theft Deterrent (VTD) System
Content Theft Deterrent (CTD) System
Figure 2:

Indicators


Object Number: 1640219  Size: FS
Master Electrical Component List
Instrument Cluster Description and Operation
Control Module References
Power, Ground and Illumination
Low Speed Serial Data
Power, Ground, Serial Data, High Speed GMLAN