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

Instrument Cluster


Object Number: 1856003  Size: FS
Master Electrical Component List
Instrument Cluster Description and Operation
Control Module References
Sensors and Switches
TANK VENT, OUTLET, IP IGN, BACKUP, ABS, and ECM TRANS Fuses
HVAC/PK3, AUDIO AMPLIFIER, WIPERS, HVAC/IP IGN, RESRAINTS, and EPS/SWC Fuses
TANK VENT, OUTLET, IP IGN, BACKUP, ABS, and ECM TRANS Fuses
Lights
Wiper/Washer Schematics
Data Link, Ground, MIL, and Power
G300 - 2 of 2
G103, G304, G105, G104, and G106
Figure 2:

Switches and Sensors


Object Number: 1870419  Size: FS
Master Electrical Component List
Instrument Cluster Description and Operation
Control Module References
Instrument Cluster
Data Communication Schematics
G103, G304, G105, G104, and G106