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

Headlight and Daytime Running Light Controls


Object Number: 1914926  Size: FS
Master Electrical Component List
Exterior Lighting Systems Description and Operation
Control Module References
Low Beam and Daytime Running Lights
Figure 2:

Low Beam and Daytime Running Lights


Object Number: 1914930  Size: FS
Master Electrical Component List
Exterior Lighting Systems Description and Operation
Control Module References
High Beams
Headlight and Daytime Running Light Controls
Figure 3:

High Beams


Object Number: 1914932  Size: FS
Master Electrical Component List
Exterior Lighting Systems Description and Operation
Control Module References
Low Beam and Daytime Running Lights