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

Headlamp Controls


Object Number: 1787552  Size: FS
Master Electrical Component List
Exterior Lighting Systems Description and Operation
Control Module References
Lighting Headlights/DRL (Headlamps)
Class 2 Serial Data Bus - LHD (2 of 2)
Lighting Headlights/DRL (Headlamps)
Front Marker Lamps (w/TT7) and Front Park Lamps (w/o TT7)
Lighting Headlights/DRL (Headlamps)
Underhood Fuse Block B+ 1 of 2
Ambient Air Temp. Sensor, Sunload Sensor, and DIC
Fog Lamps - Front
G200
Figure 2:

Headlamps


Object Number: 1787554  Size: FS
Master Electrical Component List
Exterior Lighting Systems Description and Operation
Control Module References
Daytime Running Lamps (DRL) - (Export w/T65)
Headlamp Controls
Headlamp Controls
Headlamp Controls
Position, Park, and Tail Lamps (Export)
Position, Park, and Tail Lamps (Export)
Turn SIgnal Lamps (Domestic and Export) Repeator Lamps (Export w/T90)
G104 2 of 2
G104 2 of 2
Turn SIgnal Lamps (Domestic and Export) Repeator Lamps (Export w/T90)
Figure 3:

Daytime Running Lamps (DRL) - Export w/T65


Object Number: 1787556  Size: FS
Master Electrical Component List
Exterior Lighting Systems Description and Operation
Control Module References
Daytime Running Lamps (DRL) (Domestic)
Lighting Headlights/DRL (Headlamps)
Headlamp Controls
Headlamp Controls
Underhood Fuse Block B+ 1 of 2
Front Marker Lamps (w/TT7) and Front Park Lamps (w/o TT7)
Figure 4:

Daytime Running Lamps (DRL) - Domestic


Object Number: 1787557  Size: FS
Master Electrical Component List
Exterior Lighting Systems Description and Operation
Control Module References
Daytime Running Lamps (DRL) - (Export w/T65)
Underhood Fuse Block B+ BUS 2 of 2
G104 1 of 2
G104 1 of 2
Underhood Fuse Block Wash noz, Strg (TL) and IGN MOD/MAF Fuses
Underhood Fuse Block Wash noz, Strg (TL) and IGN MOD/MAF Fuses
G104 1 of 2
G104 1 of 2
Class 2 Serial Data Bus - LHD (2 of 2)
G200