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

Headlamp, Foglamp, and Ambient Light Sensor Inputs (w/C67)


Object Number: 711085  Size: FS
Master Electrical Component List
Headlamp, Foglamp, and Ambient Light Sensor Inputs (w/CJ2)
Class 2 Serial Data
Dimming Controls
G200
Figure 2:

Headlamp, Foglamp, and Ambient Light Sensor Inputs (w/CJ2)


Object Number: 711087  Size: FS
Master Electrical Component List
DRL Controls and High Beam Headlamps
Headlamp, Foglamp, and Ambient Light Sensor Inputs (w/C67)
Class 2 Serial Data
G200
Dimming Controls
Class 2 Serial Data
Temperature Sensors
Figure 3:

DRL Controls and High Beam Headlamps


Object Number: 711089  Size: FS
Master Electrical Component List
Fog Lamp and Headlamp Fuses and Relays ( Fuse Block - Underhood)
Fog Lamp and Headlamp Fuses and Relays ( Fuse Block - Underhood)
G103
Fog Lamp and Headlamp Fuses and Relays ( Fuse Block - Underhood)
Low Beam Headlamps
Low Beam Headlamps
Headlamp, Foglamp, and Ambient Light Sensor Inputs (w/CJ2)
Class 2 Serial Data
G103
G401 (2 of 2)
G401 (2 of 2)
Low Beam Headlamps
G200
Figure 4:

Low Beam Headlamps


Object Number: 711092  Size: FS
Master Electrical Component List
DRL Controls and High Beam Headlamps
Fog Lamp and Headlamp Fuses and Relays ( Fuse Block - Underhood)
DRL Controls and High Beam Headlamps
DRL Controls and High Beam Headlamps
G103
G401 (2 of 2)
G401 (2 of 2)
Power and Switch Controls