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

Power, Ground and Illumination


Object Number: 1891608  Size: FS
Master Electrical Component List
Instrument Cluster Description and Operation
Control Module References
Indicators
Figure 2:

Indicators


Object Number: 1891609  Size: FS
Master Electrical Component List
Instrument Cluster Description and Operation
Control Module References
Driver Information Center Display
Power, Ground and Illumination