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

Gauges


Object Number: 491398  Size: FS
Instrument Cluster Components
Instrument Cluster Circuit Description
Indicator Lamps
Power Distribution Schematics
Power Distribution Schematics
Power Distribution Schematics
Indicator Lamps
Instrument Cluster: Analog Schematics
Handling ESD Sensitive Parts Notice
Indicator Lamps
Starting and Charging Schematics
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Indicator Lamps
Indicator Lamps
Indicator Lamps
Handling ESD Sensitive Parts Notice
Indicator Lamps
Indicator Lamps
Indicator Lamps
Handling ESD Sensitive Parts Notice
Figure 2:

Indicator Lamps


Object Number: 491399  Size: FS
Instrument Cluster Components
Instrument Cluster Circuit Description
Indicator Lamps (Diesel Only)
Gauges
Interior Lights Dimming Schematics
Audible Warnings Schematics
Exterior Lights Schematics
Headlights/Daytime Running Lights (DRL) Schematics
Indicator Lamps (Diesel Only)
Indicator Lamps (Diesel Only)
Gauges
Ground Distribution Schematics
Ground Distribution Schematics
Ground Distribution Schematics
Ground Distribution Schematics
SIR Schematics
Headlights/Daytime Running Lights (DRL) Schematics
Headlights Schematics
Antilock Brake System Schematics
Engine Controls Schematics Base and Luxury
Engine Controls Schematics
Engine Controls Schematics
Engine Controls Schematics Base and Luxury
Theft Deterrent System Schematics
Handling ESD Sensitive Parts Notice
Engine Controls Schematics
Figure 3:

Indicator Lamps (Diesel Only)


Object Number: 491400  Size: FS
Instrument Cluster Components
Instrument Cluster Circuit Description
Fuel Gauge Sender (Single Tank, Gas)
Indicator Lamps
Power Distribution Schematics
Power Distribution Schematics
Handling ESD Sensitive Parts Notice
Ground Distribution Schematics
Ground Distribution Schematics
Gauges
Indicator Lamps
Figure 4:

Fuel Gauge Sender (Single Tank, Gas)


Object Number: 491401  Size: FS
Instrument Cluster Components
Instrument Cluster Circuit Description
Indicator Lamps (Diesel Only)
Engine Sensors
Engine Controls Schematics Base and Luxury
Handling ESD Sensitive Parts Notice
Fuel Gauge Sender (Dual Tank, Gas)
Engine Controls Schematics
Gauges
Figure 5:

Fuel Gauge Sender (Dual Tank, Gas)


Object Number: 491402  Size: FS
Instrument Cluster Components
Instrument Cluster Circuit Description
Fuel Gauge Sender(s) (Diesel)
Fuel Gauge Sender (Single Tank, Gas)
Power Distribution Schematics
Power Distribution Schematics
Handling ESD Sensitive Parts Notice
Engine Controls Schematics Base and Luxury
Engine Controls Schematics
Engine Controls Schematics Base and Luxury
Engine Controls Schematics
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Gauges
Figure 6:

Fuel Gauge Sender(s) (Diesel)


Object Number: 491403  Size: FS
Instrument Cluster Components
Instrument Cluster Circuit Description
Electronic PRNDL
Fuel Gauge Sender (Dual Tank, Gas)
Power Distribution Schematics
Gauges
Power Distribution Schematics
Handling ESD Sensitive Parts Notice
Ground Distribution Schematics
Ground Distribution Schematics
Figure 7:

Electronic PRNDL


Object Number: 491404  Size: FS
Instrument Cluster Components
Instrument Cluster Circuit Description
Fuel Gauge Sender(s) (Diesel)
Interior Lights Dimming Schematics
Power Distribution Schematics
Interior Lights Dimming Schematics
Handling ESD Sensitive Parts Notice
Ground Distribution Schematics
Ground Distribution Schematics
Ground Distribution Schematics
Ground Distribution Schematics
Ground Distribution Schematics
Ground Distribution Schematics
Ground Distribution Schematics