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

Power and Ground


Object Number: 586915  Size: FS
Lighting Systems Components
Headlight Doors Circuit Description
Headlamp Door Control
Ground Distribution Schematics
Handling ESD Sensitive Parts Notice
Headlights/Daytime Running Lights (DRL) Schematics
Interior Lights Dimming Schematics
Figure 2:

Headlamp Door Control


Object Number: 586919  Size: FS
Lighting Systems Components
Headlight Doors Circuit Description
Power and Ground
Power Distribution Schematics