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

Power, DLC and DIC/Dimmer Switch


Object Number: 1618830  Size: FS
Master Electrical Component List
Interior Lighting Systems Description and Operation
Control Module References
Dimming Lamps (1 of 3)
Fuse Block Underhood Bussing
Fuse Block - Underhood Fuses/Relays: IPM/ALDL, Auto Headlamp Dimming, CCP, ECM/TCM, WPR MOD, WPR SW/VICS and Rain Sensor/HDLP Wash Fuses, Accessory Relay
Fuse Block Underhood Relays/Fuses: Park Lamp Relay, RT Park Fuse, Tilt/LK/LMP/CLM Relay Coils Fuse
Fuse Block - Underhood Relays/Fuses: LT Park Fuse, License/Dimming Fuse
Fuse Block Underhood Relays/Fuses: Park Lamp Relay, RT Park Fuse, Tilt/LK/LMP/CLM Relay Coils Fuse
GMLAN Low Speed (2 of 2)
Dimming Lamps (1 of 3)
G201 (2 of 2)
G101
Figure 2:

Dimming Lamps 1 of 3


Object Number: 1618827  Size: FS
Master Electrical Component List
Interior Lighting Systems Description and Operation
Control Module References
Dimming Lamps (2 of 3)
Power, Ground, DLC and DIC/Dimmer Switch
G200 (2 of 2)
G200 (2 of 2)
Power, Ground, DLC and DIC/Dimmer Switch
DIC/Dimmer Switch
G200 (2 of 2)
Lighting Systems Schematic Icons
G200 (2 of 2)
G201 (1 of 2)
G201 (1 of 2)
Front Turn Signal and Repeater Lamps, Hazard Switch - Domestic and Export
Dimming Lamps (2 of 3)
Dimming Lamps (2 of 3)
Indicator and Traction Control
Figure 3:

Dimming Lamps 2 of 3


Object Number: 1618828  Size: FS
Master Electrical Component List
Interior Lighting Systems Description and Operation
Control Module References
Dimming Lamps (3 of 3)
Dimming Lamps (1 of 3)
Dimming Lamps (1 of 3)
Dimming Lamps (1 of 3)
Sunroof Schematics
Air Quality Sensor, Rear Mode Motor
Cigar Lighter/Power Outlet Schematics
TCM Power, Grounds and DLC
Automatic Transmission Shift Lever Assembly, IPM
GMLAN Low Speed (1 of 2)
GMLAN Low Speed (2 of 2)
Left Rear Window Switch, Motor
Right Rear Window Switch, Motor
G201 (1 of 2)
G402 (1 of 2)
G201 (1 of 2)
G200 (1 of 2)
G201 (1 of 2)
Figure 4:

Dimming Lamps 3 of 3


Object Number: 1618829  Size: FS
Master Electrical Component List
Interior Lighting Systems Description and Operation
Control Module References
Dimming Lamps (2 of 3)
GMLAN Low Speed (1 of 2)
DDM Power, Ground and DLC
Body Rear End Schematics
Driver Door Lock
Front Passenger Door Lock
Front Passenger Window Switch, Motor
G200 (1 of 2)
G201 (2 of 2)