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

Power, Ground, and Serial Data


Object Number: 1608850  Size: FS
Master Electrical Component List
Body Control System Description and Operation
Control Module References
Interior Lights System References
IPC/DIC, LH HID, RH HID, SEO B1, SEO B2, and TBC BATT Fuses
B+ Bus - 1 of 2
Ignition Switch - ACCY/RUN, and RUN/START Busses, and IGN B Fuses
B+ Bus - 1 of 2
Ignition Switch - ACCY/RUN/START, RUN, and START Busses, IGN A and CRANK Fuses
Ignition Switch - ACCY/RUN, and RUN/START Busses, and IGN B Fuses
Power, Ground, DLC and Splice Pack SP205
G203 1 of 3
G203 1 of 3
Figure 2:

Interior Lights System References


Object Number: 1608852  Size: FS
Master Electrical Component List
Body Control System Description and Operation
Control Module References
Exterior Lights System References
Power, Ground, Serial Data
Dimming Control and LED Dimming Supply Voltage - 1 of 2
Door Switch Inputs and Door Courtesy Lamps
Dimming Control and LED Dimming Supply Voltage - 1 of 2
Interior Lamps - Avalanche and Escalade EXT
Headlamp Switches, Courtesy Lamp and Inadvertent Voltage Supplies
Dimming Control and LED Dimming Supply Voltage - 1 of 2
Figure 3:

Exterior Lights System References


Object Number: 1608854  Size: FS
Master Electrical Component List
Body Control System Description and Operation
Control Module References
Controlled/Monitored Subsystem References - 1 of 2
Interior Lights System References
Headlights - w/ Z75
Headlights - except Z75
Daytime Running Lamps (DRL) - w/ VD1
Daytime Running Lamps (DRL) - w/o VD1
Front
Park Lamp Relay - w/ VD1
Park Lamp Relay - w/o VD1
Backup Lamps
Rear - w/ VD1
Headlights/DRL Controls
Figure 4:

Controlled/Monitored Subsystem References 1 of 2


Object Number: 1608855  Size: FS
Master Electrical Component List
Body Control System Description and Operation
Control Module References
Controlled/Monitored Subsystem References - 2 of 2
Exterior Lights System References
Horns Schematics
Rear Window Defogger Controls
Left Doors
Right Doors
06 CK Util Power Sunroof Schematics
Brake Warning System Schematics
Rear Object Sensor Control Module, RPA Display, and RPA Disable Switch - Escalade except EXT
Steering Wheel Speed/Position Sensor Inputs - w/ JL4
Figure 5:

Controlled/Monitored Subsystem References 2 of 2


Object Number: 1608857  Size: FS
Master Electrical Component List
Body Control System Description and Operation
Control Module References
Controlled/Monitored Subsystem References - 1 of 2
G410 1 of 3
G410 1 of 3
Audible Warnings Schematics
Steerng Wheel Controls Schematics
PNP Switch, 4WD signal, Tow/Haul, Serial Data, and Indicator
PNP Switch, 4WD Signal, Tow/Haul, Serial Data, and Indicator
Vehicle Theft Deterrent