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

Power, Ground, Tachometer and Speedometer


Object Number: 690465  Size: FS
Master Electrical Component List
Instrument Cluster Description and Operation
Indicators
G104
Instrument Panel Electrical Center Fuses 15, 16, 13, 20 and 19
Instrument Panel Electrical Center Fuses 15, 16, 13, 20 and 19
Figure 2:

Indicators


Object Number: 690468  Size: FS
Master Electrical Component List
Instrument Cluster Description and Operation
Temperature,Fuel and Oil Pressure Gauges
Power,Ground,Tachometer and Speedometer
Star Connectors
Module Power, Ground, Serial Data and MIL
Manual Transmission Schematics (MM6)
Seat Belt Schematics
01 Y-Car: Brake Warning System Schematics
01 Y-Car: Cooling Fan Schematics
01 Y-Car: Wiper/Washer System (Pulse) Schematic
Hazard Warning Switch and Turn Signal Switch
Headlamp Control
G201
G201
Figure 3:

Temperature, Fuel and Oil Pressure Gauges


Object Number: 690470  Size: FS
Master Electrical Component List
Instrument Cluster Description and Operation
Driver Information Center and Engine Oil Temperature Gauge Sensor
Indicators
Star Connectors
Fuel Controls - EVAP Controls
G401
G106 and G105
Figure 4:

Driver Information Center and Engine Oil Temperature Gauge Sensor


Object Number: 690478  Size: FS
Master Electrical Component List
Instrument Cluster Description and Operation
Temperature,Fuel and Oil Pressure Gauges
Star Connectors