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

USS (LG5 with MTW MX4)


Object Number: 681526  Size: FS
Master Electrical Component List
Audible Warnings Description and Operation
VSS (LG5 without MTW/MX4)
Instrument Panel, Gages, and Console Schematic Icons
Speedometer, Voltemeter, Engine Coolant Temperature, Engine Oil Pressure, Check Gages
Figure 2:

VSS ( LG5 without MTW MX4)


Object Number: 681529  Size: FS
Master Electrical Component List
Audible Warnings Description and Operation
Speedometer, Voltemeter, Engine Coolant Temperature, Engine Oil Pressure, Check Gages
VSS (LG5 with MTW/MX4)
Instrument Panel, Gages, and Console Schematic Icons
Instrument Panel, Gages, and Console Schematic Icons
Air Operated Systems
Speedometer, Voltemeter, Engine Coolant Temperature, Engine Oil Pressure, Check Gages
Figure 3:

Speedometer, Voltmeter, Engine Coolant Temperature, Engine Oil Pressure, Check Gages


Object Number: 769845  Size: FS
Master Electrical Component List
Audible Warnings Description and Operation
Generator Charge, Fuel Gage, Tachometer
VSS (LG5 without MTW/MX4)
IGN SW Circuit Breakers (2 of 4)
G208, S233, S501
VSS (LG5 with MTW/MX4)
VSS (LG5 without MTW/MX4)
G208, S233, S501
S110, S112
Generator Charge, Fuel Gage, Tachometer
Generator Charge, Fuel Gage, Tachometer
Figure 4:

Generator Charge, Fuel Gage, Tachometer


Object Number: 650641  Size: FS
Master Electrical Component List
Audible Warnings Description and Operation
DRL ABS, Low Coolant, Intake Heater, MIL
Speedometer, Voltemeter, Engine Coolant Temperature, Engine Oil Pressure, Check Gages
IGN SW Circuit Breakers (2 of 4)
Speedometer, Voltemeter, Engine Coolant Temperature, Engine Oil Pressure, Check Gages
Speedometer, Voltemeter, Engine Coolant Temperature, Engine Oil Pressure, Check Gages
L18 Starting and Charging Circuits (Starting Circuit)
L18 Starting and Charging Circuits (Starting Circuit)
DRL ABS, Low Coolant, Intake Heater, MIL
Apply Park Brake, Service Park Brake, Left/Right Turn, Aux Brake, High Beam, IPC Illumination
Figure 5:

DRL ABS, Low Coolant, Intake Heater, MIL


Object Number: 650643  Size: FS
Master Electrical Component List
Audible Warnings Description and Operation
Park Brake, DIFF Lock, Low Air, Primary Brake
Generator Charge, Fuel Gage, Tachometer
Generator Charge, Fuel Gage, Tachometer
Driver Information Center
Circuit Power/DRL Controls
Air ABS and ABS Relay Center Ground
Hydraulic ABS Ground
Engine Cooling Schematics
Indicators
MIL/PCM Power and Ground
Figure 6:

Park Brake, DIFF Lock, Low Air, Primary Brake


Object Number: 650644  Size: FS
Master Electrical Component List
Audible Warnings Description and Operation
Apply Park Brake, Service Park Brake, Left/Right Turn, Aux Brake, High Beam, IPC Illumination
DRL ABS, Low Coolant, Intake Heater, MIL
DRL ABS, Low Coolant, Intake Heater, MIL
Park Brake Control Module Power and IP Indicators
Differential Lock Schematics
Brake Warning System Schematics
Brake Warning System Schematics
Figure 7:

Apply Park Brake, Service Park Brake, Left/Right Turn, Aux Brake, High Beam, IPC Illumination


Object Number: 650645  Size: FS
Master Electrical Component List
Audible Warnings Description and Operation
Driver Information Center
Park Brake, DIFF Lock, Low Air, Primary Brake
Park Brake Control Module Power and IP Indicators
Park/Turn Signal Lamp, Tail Lamps IPC Indicators
Brake Warning System Schematics
Dimming Components
Dimming Components
Generator Charge, Fuel Gage, Tachometer
S219
CHAS, Axle, Circuit Breakers
Transmission Fluid Temperature (TFT) Gage
CHAS, Axle, Circuit Breakers
Figure 8:

Driver Information Centers


Object Number: 662445  Size: FS
Master Electrical Component List
Audible Warnings Description and Operation
Transmission Fluid Temperature (TFT) Gage
Apply Park Brake, Service Park Brake, Left/Right Turn, Aux Brake, High Beam, IPC Illumination
IGN SW Circuit Breakers (2 of 4)
Audible Warnings Schematics
Indicators
Power and Grounds Indicators
TCM Interface Module Relays Indicator
Automatic Transmission Controls without MWF/MTW/MX4
Air ABS and ABS Relay Center Ground
Automatic Transmission Controls without MWF/MTW/MX4
Indicators
Figure 9:

Transmission Fluid Temperature (TFT) Gage


Object Number: 650646  Size: FS
Master Electrical Component List
Audible Warnings Description and Operation
Driver Information Center
B/U and IGN 3 Circuit Breaker (1 of 2)
Dimming Components
B/U and IGN 3 Circuit Breaker (1 of 2)
S110, S112
S110, S112
Apply Park Brake, Service Park Brake, Left/Right Turn, Aux Brake, High Beam, IPC Illumination