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

Power, Ground, and Serial Data


Object Number: 1907276  Size: FS
Master Electrical Component List
Instrument Cluster Description and Operation
Control Module References
Gages
Figure 2:

Gages


Object Number: 1907466  Size: FS
Master Electrical Component List
Instrument Cluster Description and Operation
Control Module References
Indicators
Power, Ground and Serial Data
Figure 3:

Indicators


Object Number: 1907280  Size: FS
Master Electrical Component List
Instrument Cluster Description and Operation
Control Module References
Gages