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

Gages, Ground, and Power


Object Number: 1843920  Size: FS
Master Electrical Component List
Instrument Cluster Description and Operation
Control Module References
Indicators and Lighting
AIRBAG, AMP, BATT 1, BCM, CNSTR/VENT, CSTY, DISPLAY, INADV/PWR/LED, INFOTAINMENT, MSM, POWER MOD, and RADIO Fuses
B+ Bus 2 of 2
5V1 and Low Reference Bus
G301 1 of 2
Figure 2:

Indicators and Lighting


Object Number: 1843921  Size: FS
Master Electrical Component List
Instrument Cluster Description and Operation
Control Module References
DIC - UH9
Gages, Ground, and Power
Data Communication Schematics
Data Communication Schematics
Front Washers
Hydraulic Brake Schematics
Module Power, Ground, Indicators, Rollover/Passenger Presence Sensors
Seat Belt Schematics
Module Power, Ground, Serial Data, and MIL
Figure 3:

DIC - UH9


Object Number: 1843922  Size: FS
Master Electrical Component List
Driver Information Center (DIC) Description and Operation
Control Module References
Indicators and Lighting
Controls, I/P, and Steering Wheel LEDs
G301 1 of 2