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

Cell 102: DRL Module, DRL Relay


Object Number: 491534  Size: FS
Headlights/Daytime Running Lights (DRL) Circuit Description
Cell 102: Headlamp and Panel Dimmer Switch, Headlamp Dimmer Switch
Ground Distribution Schematics
Ground Distribution Schematics
Cell 102: Headlamp and Panel Dimmer Switch, Headlamp Dimmer Switch
Cell 102: Headlamp and Panel Dimmer Switch, Headlamp Dimmer Switch
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Lighting Systems Components
Instrument Cluster: Analog Schematics
Ground Distribution Schematics
Brake Warning System Schematics
Power Distribution Schematics
Power Distribution Schematics
Power Distribution Schematics
Figure 2:

Cell 102: Headlamp and Panel Dimmer Switch, Headlamp Dimmer Switch


Object Number: 491541  Size: FS
Headlights/Daytime Running Lights (DRL) Circuit Description
Cell 102: Quad Headlamps, Base Headlamps
Cell 102: DRL Module, DRL Relay
Cell 102: DRL Module, DRL Relay
Cell 102: Quad Headlamps, Base Headlamps
Cell 102: Quad Headlamps, Base Headlamps
Cell 102: DRL Module, DRL Relay
Cell 102: DRL Module, DRL Relay
Cell 102: DRL Module, DRL Relay
Lighting Systems Components
Power Distribution Schematics
Power Distribution Schematics
Ground Distribution Schematics
Figure 3:

Cell 102: Quad Headlamps, Base Headlamps


Object Number: 491548  Size: FS
Cell 102: Headlamp and Panel Dimmer Switch, Headlamp Dimmer Switch
Ground Distribution Schematics
Ground Distribution Schematics
Cell 102: Headlamp and Panel Dimmer Switch, Headlamp Dimmer Switch
Ground Distribution Schematics
Cell 102: Headlamp and Panel Dimmer Switch, Headlamp Dimmer Switch
Lighting Systems Components
Headlights/Daytime Running Lights (DRL) Circuit Description
Ground Distribution Schematics