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

Ambient Light Sensor, Headlamp Controls and Switches


Object Number: 1472868  Size: FS
Master Electrical Component List
Exterior Lighting Systems Description and Operation
Body Control Module (BCM) Programming/RPO Configuration
Headlamp Schematic w/TT5 (Early Production)
Indicators
Interior Lights Dimming Schematics
Fog Lights
Park Lamp Control, Turn Signal Inputs, and Hazard Switch
Splice Pack SP106 and G106 - 2 of 2
Figure 2:

Headlamp Schematics w/TT5 (Early Production)


Object Number: 2009386  Size: FS
Master Electrical Component List
Exterior Lighting Systems Description and Operation
Body Control Module (BCM) Programming/RPO Configuration
Headlamp Schematic w/o TT5 (Early Production)
Ambient Light Sensor, Headlamp Controls and Switches
B+ Bus - Underhood Fuse Block
B+ Bus - Underhood Fuse Block
Splice Pack SP1`05 and G105 - 1 of 2
Figure 3:

Headlamp Schematics w/o TT5 (Early Production)


Object Number: 2009387  Size: FS
Master Electrical Component List
Exterior Lighting Systems Description and Operation
Body Control Module (BCM) Programming/RPO Configuration
DRL Schematic (Early Production)
Headlamp Schematic w/TT5 (Early Production)
B+ Bus - Underhood Fuse Block
Splice Pack SP1`05 and G105 - 1 of 2
Splice Pack SP1`05 and G105 - 1 of 2
Figure 4:

Daytime Running Lamps (Early Production)


Object Number: 2009384  Size: FS
Master Electrical Component List
Exterior Lighting Systems Description and Operation
Body Control Module (BCM) Programming/RPO Configuration
Headlights/Daytime Running Lights (DRL) Schematics w/TT5 (Late Production)
Headlamp Schematic w/o TT5 (Early Production)
B+ Bus - Underhood Fuse Block
B+ Bus - Underhood Fuse Block
Park Lamps
Splice Pack SP1`05 and G105 - 2 of 2
Splice Pack SP1`05 and G105 - 2 of 2
Figure 5:

w/TT5


Object Number: 1845225  Size: FS
Master Electrical Component List
Exterior Lighting Systems Description and Operation
Body Control Module (BCM) Programming/RPO Configuration
Headlights/Daytime Running Lights (DRL) Schematics w/o TT5 (Late Production)
DRL Schematic (Early Production)
B+ Bus - Underhood Fuse Block
B+ Bus - Underhood Fuse Block
Splice Pack SP1`05 and G105 - 1 of 2
Splice Pack SP1`05 and G105 - 1 of 2
Figure 6:

w/o TT5


Object Number: 1472883  Size: FS
Master Electrical Component List
Exterior Lighting Systems Description and Operation
Body Control Module (BCM) Programming/RPO Configuration
Headlights/Daytime Running Lights (DRL) Schematics w/TT5 (Late Production)
B+ Bus - Underhood Fuse Block
B+ Bus - Underhood Fuse Block
Splice Pack SP1`05 and G105 - 1 of 2
Splice Pack SP1`05 and G105 - 1 of 2