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

Headlight and Daytime Running Light Controls


Object Number: 1847458  Size: FS
Master Electrical Component List
Exterior Lighting Systems Description and Operation
Control Module References
Low Beam and Daytime Running Lights
Temperature Controls
G201 1 of 2
Figure 2:

Low Beam and Daytime Running Lights


Object Number: 1847460  Size: FS
Master Electrical Component List
Exterior Lighting Systems Description and Operation
Control Module References
High Beams
Headlight and Daytime Running Light Control
DRL, DRL 2, FOG LAMP, LO HDLP-LT, LO HDLP-RT, HI HDLP-LT and HI HDLP-RT Fuses
DRL, DRL 2, FOG LAMP, LO HDLP-LT, LO HDLP-RT, HI HDLP-LT and HI HDLP-RT Fuses
DRL, DRL 2, FOG LAMP, LO HDLP-LT, LO HDLP-RT, HI HDLP-LT and HI HDLP-RT Fuses
DRL, DRL 2, FOG LAMP, LO HDLP-LT, LO HDLP-RT, HI HDLP-LT and HI HDLP-RT Fuses
G100
G101
Figure 3:

High Beams


Object Number: 1847461  Size: FS
Master Electrical Component List
Exterior Lighting Systems Description and Operation
Control Module References
Low Beam and Daytime Running Lights
DRL, DRL 2, FOG LAMP, LO HDLP-LT, LO HDLP-RT, HI HDLP-LT and HI HDLP-RT Fuses
DRL, DRL 2, FOG LAMP, LO HDLP-LT, LO HDLP-RT, HI HDLP-LT and HI HDLP-RT Fuses
G100
G101