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

Headlamp Switch, Instrument Cluster, Park/Neutral Position Switch


Object Number: 767667  Size: FS
Master Electrical Component List
Instrument Cluster Description and Operation
Indicators 1 of 2 (Gas)
Illumination Fuse and Headlamp Switch
Lighting and Battery Fuses
Ignition A, Ignition B Fuses, and Ignition Switch
Ignition A, Ignition B Fuses, and Ignition Switch
Illumination Fuse and Headlamp Switch
ILLUM and PARK LPS Fuses
Radio 1, Wiper, Transmission, and Crank Fuses
Gauges Fuse
Rear Speakers
G101 (Gasoline Engines)
G101 (6.5L Diesel Engine)
Park/Neutral Position Switch
Park/Neutral Position Switch
Figure 2:

Indicators 1 of 2 (Gas)


Object Number: 652619  Size: FS
Master Electrical Component List
Instrument Cluster Description and Operation
Indicators 1 of 2 (Diesel)
Headlamp Switch, Instrument Cluster, Park/Neutral Position Switch
Inflatable Restraint Sensing and Diagnostic Module, Muti-function Alarm Module
PWR, Switch and Alarm Delay Module
Power, Ground, DLC and Indicator
Figure 3:

Indicators 1 of 2 (Diesel)


Object Number: 652617  Size: FS
Master Electrical Component List
Instrument Cluster Description and Operation
Indicators 2 of 2 (Gas and Diesel) and Fuel Sender Buffer Module (Diesel Only)
Indicators 1 of 2 (Gas)
G103 (6.5L Diesel Engine)
Inflatable Restraint Sensing and Diagnostic Module, Muti-function Alarm Module
PWR, Switch and Alarm Delay Module
Power, Ground, DLC and Indicator
Low Engine Coolant Idicator Control Module, Low Engine Coolant Idicator Sensor
Figure 4:

Indicators 2 of 2 (Gas and Diesel) and Fuel Sender Buffer Module (Diesel Only)


Object Number: 652622  Size: FS
Master Electrical Component List
Instrument Cluster Description and Operation
Gauges
Indicators 1 of 2 (Diesel)
DRL Control Module, Headlamp Switch, Muti-Function Switch
DRL Rear Parklamp Relay
Headlamp Switch, Muti-Function Switch, Headlamps
Hazard Warning Switch, Turn/Hazard Lamp Flasher
Turn/Hazard Lamp Flasher
Components through S202 and S205 to G201
G201
GAUGES, ILLUM, HAZARD, PARK LPS Fuses; Multi-Function Alarm Module; Left Front Door Jamb Switch; G201 (4.3L, 5.0L, and 5.7L)
Ignition A, Ignition B Fuses, and Ignition Switch
Gauges Fuse
Passlock (Diesel)
Gauges
G101 (Gasoline Engines)
Figure 5:

Gauges


Object Number: 767672  Size: FS
Master Electrical Component List
Instrument Cluster Description and Operation
Indicators 2 of 2 (Gas and Diesel) and Fuel Sender Buffer Module (Diesel Only)
G101 (Gasoline Engines)
G101 (6.5L Diesel Engine)
Indicators 2 of 2 (Gas and Diesel) and Fuel Sender Buffer Module (Diesel Only)
EVAP and EGR Controls
EVAP and EGR Controls
Sensor Controls: EGR, Fuel Tank Pressure Sensor, MAP, IAT, ECT
Sensor Controls: EGR, Fuel Tank Pressure Sensor, MAP, IAT, ECT