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

Headlights


Object Number: 1740098  Size: FS
Master Electrical Component List
Exterior Lighting Systems Description and Operation
Control Module References
Daytime Running Lights
FRT/BLWR, HTD/MIR, LH HI BEAM, LH LO BEAM, RH LO BEAM, RH HI BEAM, RR BLWR/110VAC, and RR DEFOG Fuses
Data Communication Schematics
G100 and G101
G100 and G101
G200 - 2 of 2
Park, Marker, and License Lamps
Control, I/P, Passenger Door, and Steering Wheel Lamps
Switches
Figure 2:

Daytime Running Lights


Object Number: 1740099  Size: FS
Master Electrical Component List
Exterior Lighting Systems Description and Operation
Control Module References
Headlights
G200 - 2 of 2
G100 and G101
G100 and G101