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

Instrument Cluster


Object Number: 1942557  Size: FS
Master Electrical Component List
Instrument Cluster Description and Operation
Control Module References
Sensors and Switches
Figure 2:

Sensors and Switches


Object Number: 1942562  Size: FS
Master Electrical Component List
Indicator/Warning Message Description and Operation
Control Module References
Electronic PRNDL
Instrument Cluster Schematics