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

Power, Ground, Serial Data, Odometer, and Clock


Object Number: 1451512  Size: FS
Master Electrical Component List
Instrument Cluster Description and Operation
Control Module References
Indicators
RIM and THEFT Fuses and Ignition Switch - 2 of 2
Fuse Block - Underhood B+ Bus Schematic
CCP (B+), DIM/ALDL, EBCM (B+), ECM/TCM, Flasher, and VOLT CHECK Fuses
G104
ABS, STARTER RLY, STRG CTLS, TCM/IPC, and WASH NOZ Fuses
Class 2 Serial Data - 1 of 2
G104
G200
Figure 2:

Indicators


Object Number: 1473137  Size: FS
Master Electrical Component List
Instrument Cluster Description and Operation
Control Module References
Gages
Power, Ground, Serial Data, Odometer and Clock
Engine Data Sensors - 5-Volt Reference
Engine Data Sensors - Low Reference
Turn Signal/Hazard Flasher Module
Class 2 Serial Data - 1 of 2
G100 - LH2
G200
Power, Ground, Serial Data and Switches
Module Power, Ground, Serial Data and MIL
Power, Ground, Serial Data and MIL
Hydraulic Brakes Schematics
Indicator,Traction Control, and Brake Pedal Position
Figure 3:

Gages


Object Number: 1473140  Size: FS
Master Electrical Component List
Instrument Cluster Description and Operation
Control Module References
Indicators
Fuel Controls - EVAP Controls
Fuel Control - EVAP Controls
Engine Data Sensors - Pressure, Temperature, MAF, VSS, and Extended Travel Brake Switch
Engine Data Sensors - Pressure, Temperature, MAF, VSS and Extended Travel Brake Switch
Class 2 Serial Data - 1 of 2
Fuel Controls - EVAP Controls