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

Power, Ground, Serial Data, and Message Center


Object Number: 1619572  Size: FS
Master Electrical Component List
Instrument Cluster Description and Operation
Control Module References
Indicators
BATT 1, HAZRD LAMP, HUD, IPC/HVAC/SEC/RKE, IS LAMP, PK3, RDO and RDO AMP Fuses
Ignition Switch-ACCY/RUN/START and RUN and START Bus Bars, HVAC BLWR, IPC/BCM/PK3, PK3, and PRK LCK IGN Fuses
Front
BATT 1, HAZRD LAMP, HUD, IPC/HVAC/SEC/RKE, IS LAMP, PK3, RDO and RDO AMP Fuses
G201
DLC Schematics
Figure 2:

Indicators


Object Number: 1619573  Size: FS
Master Electrical Component List
Instrument Cluster Description and Operation
Control Module References
Engine Oil Sensors and Switches
Power, Ground, Serial Data, and Message Center
I/P and Console Lamps
Turn/Stop Lamps and Indicators
G202
Brake Warning System Schematics
Module Power, Ground, Serial Data, and MIL
Module Power, Ground, Serial Data, and MIL
Figure 3:

Engine Oil Sensors and Switches


Object Number: 1619574  Size: FS
Master Electrical Component List
Instrument Cluster Description and Operation
Control Module References
Gages-LX9
Indicators
Engine Data Sensors-5-Volt Reference
DLC Schematics
Figure 4:

Gages - LX9


Object Number: 1619576  Size: FS
Master Electrical Component List
Instrument Cluster Description and Operation
Control Module References
Gages-LY7
Engine Oil Sensors and Switches
Fuel Controls-Fuel Pump Controls
DLC Schematics
Figure 5:

Gages - LY7


Object Number: 1619577  Size: FS
Master Electrical Component List
Instrument Cluster Description and Operation
Control Module References
Driver Information Center-UH9
Gages-LX9
Engine Data Sensors-Low Reference
Instrument Panel, Gages, and Console Schematic Icons
DLC Schematics
Figure 6:

Driver Information Center - UH9


Object Number: 1619579  Size: FS
Master Electrical Component List
Instrument Cluster Description and Operation
Control Module References
Gages-LY7
G201