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

DIM Power and Grounds


Object Number: 625338  Size: FS
Master Electrical Component List
Body Control System Description and Operation
DIM Ignition Inputs
IGN SW Fuse (Fuse Block-Rear)
Serial Data Class 2
G200
Battery Feed to the Fuse Block-Rear
IGN SW Fuse (Fuse Block-Rear)
Battery Feed to the Fuse Block-Rear
Figure 2:

DIM Ignition Inputs


Object Number: 625339  Size: FS
Master Electrical Component List
Body Control System Description and Operation
DIM Ignition Inputs
Dim Power and Grounds
IGN SW (Fuse Block-Rear)
IGN SW (Fuse Block-Rear)
IGN SW (Fuse Block-Rear)
Figure 3:

DIM Input/Output (1 of 2)


Object Number: 565234  Size: FS
Master Electrical Component List
Body Control System Description and Operation
DIM Input/Output (2 of 2)
DIM Ignition Inputs
Headlamp Switch and Sunload Sensor Assembly
DRL, High Beam Headlamps, Headlamp Dimmer Switch
Headlamp Switch and Sunload Sensor Assembly
License Plate Lamps, Park Lamp Relay
Low Beam Headlamps
DRL, High Beam Headlamps, Headlamp Dimmer Switch
Fog Lamps (Front)
A/C Orifice Solenoid
Figure 4:

DIM Input/Output (2 of 2)


Object Number: 565246  Size: FS
Master Electrical Component List
Body Control System Description and Operation
IPM Power and Grounds
DIM Ignition Inputs
Reverse Lockout Control
Steering Wheel Controls
Horns
Compressor Control
Windshield Wiper Switch and Fuse
Dimming Control
Instrument Panel/Console Dimming
Figure 5:

IPM Power and Grounds


Object Number: 625340  Size: FS
Master Electrical Component List
Body Control System Description and Operation
IPM Input/Output (1 of 2)
DIM Input/Output (2 of 2)
Battery Feed to the Fuse Block-Rear
IGN 3 RR, ABS, HVAC Fuses (Fuse Block-Rear)
Serial Data Class 2
G201, 2 of 3
G201, 2 of 3
Figure 6:

IPM Input/Output (1 of 2)


Object Number: 581601  Size: FS
Master Electrical Component List
Body Control System Description and Operation
IPM Inputs/Outputs (2 of 2)
IPM Power and Grounds
Dimming Control
Dimming Control
Headlamp Switch and Sunload Sensor Assembly
Indicators and Traction Control Switch
Fog Lamps (Front)
Car Courtesy Lamps-Right
Overhead Reading, Courtesy, and Vanity Mirror Lamps
Audible Warnings
HVAC Control Module
Figure 7:

IPM Input/Output (2 of 2)


Object Number: 765509  Size: FS
Master Electrical Component List
Body Control System Description and Operation
RIM Power and Grounds
IPM Input/Output (1 of 2)
Air Delivery
Air Temperature Sensors
Blower Control
Figure 8:

RIM Power and Grounds


Object Number: 625343  Size: FS
Master Electrical Component List
Body Control System Description and Operation
RIM Inputs/Outputs (1 of 2)
IPM Inputs/Outputs (2 of 2)
IGN SW Fuse (Fuse Block-Rear)
IGN SW Fuse (Fuse Block-Rear)
Serial Data Class 2
G302
IGN-1, VENT SOL, SIR Fuses and IGN 1 Relay (Fuse Block-Rear)
IGN SW (Fuse Block-Rear)
Battery Feed to the Fuse Block-Rear
G402
Figure 9:

Rim Input/Output (1 of 2)


Object Number: 780637  Size: FS
Master Electrical Component List
Body Control System Description and Operation
RIM Inputs/Outputs (2 of 2)
RIM Power and Grounds
Car Courtesy Lamps-Right
Cigar Lighter/Auxiliary Outlets
Interior and Front Courtesy Lamp Relays
Backup Lamps
Fog Lamps (Rear)
Body Rear End (1 of 2)
Body Rear End (1 of 2)
Retained Accessory Power (RAP)
Car Courtesy Lamps-Right
Body Rear End (2 of 2)
Figure 10:

RIM Input/Output (2 of 2)


Object Number: 565261  Size: FS
Master Electrical Component List
Body Control System Description and Operation
RIM Inputs/Outputs (1 of 2)
Front Heated Seats (Partial)
Defogger
Automatic Level Control Suspension Schematics
Shift Lock Power and Grounds