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

DLC, Ground and Power


Object Number: 1658973  Size: FS
Master Electrical Component List
Data Link Communications Description and Operation
Control Module References
Lighting References - 1 of 2
Fuse Block Underhood Fuses: BATT3, STOP/BULPS, BCM Fuses: BTSI SOL/COL LOCK, PWR FLDG MIR-EXT/RET, RADIO/ANT/VICS, REAR FOG/ALDL TOPSW, REVERSE LPS
Fuse Block Underhood Fuses: BATT3, STOP/BULPS, BCM Fuses: BTSI SOL/COL LOCK, PWR FLDG MIR-EXT/RET, RADIO/ANT/VICS, REAR FOG/ALDL TOPSW, REVERSE LPS
Class 2
GM LAN
Fuse Block Underhood Fuses - BATT5, BCM Fuses - ACCA/DRIV DRSW, IGNITION SW/INTR SENS, ONSTAR, PARK BRAKE SOL A, TILT/TELE SW/MEM SEAT MOD
Fuse Block Underhood Fuses: BATT3, STOP/BULPS, BCM Fuses: BTSI SOL/COL LOCK, PWR FLDG MIR-EXT/RET, RADIO/ANT/VICS, REAR FOG/ALDL TOPSW, REVERSE LPS
Ignition Modes
G104 and G106
G202 - 1 of 2
Figure 2:

Lighting References 1 of 2


Object Number: 1480877  Size: FS
Master Electrical Component List
Data Link Communications Description and Operation
Control Module References
Lighting References - 2 of 2
06 XLR Body Control System Schematics - DLC, Power, and Ground
Headlamp/DRL Controls
Stop Lamps
Fuse Block Underhood Fuses: BATT3, STOP/BULPS, BCM Fuses: BTSI SOL/COL LOCK, PWR FLDG MIR-EXT/RET, RADIO/ANT/VICS, REAR FOG/ALDL TOPSW, REVERSE LPS
Headlamp/DRL Controls
Turn Signal and Hazard Lamps (Domestic)
Figure 3:

Lighting References 2 of 2


Object Number: 1480879  Size: FS
Master Electrical Component List
Data Link Communications Description and Operation
Control Module References
Lighting References - 2 of 2
Lighting References - 1 of 2
Turn Signal and Hazard Lamps (Domestic)
Courtesy, Underhood, I/P Compartment, Vanity Mirrors, Inside Rearview Mirror and Lamp Controls
Front Fog Lamps
Rear Fog Lamps (Europe)
Figure 4:

Subsystems References


Object Number: 1480880  Size: FS
Master Electrical Component List
Data Link Communications Description and Operation
Control Module References
Auxiliary Power
Lighting References - 2 of 2
Actuators and Handle Switches
Content Theft Deterrent
Wiper Switch, Washers and Outside Moisture Sensor
Cigar Lighter/Auxiliary Outlets Schematics
Column/Ignition Lock Schematics
Horn Schematics
Body Rear End Schematics
DLC, Ground, Power, and Non-Sensor Signals
Brake Pedal Signal and Traction Control Switch
Power, Ground, and Wiper Motor
Content Theft Deterrent
Park Brake System Schematics
Indicators, Messages and Ajar/Open/Lock Switches
Figure 5:

Auxiliary Power


Object Number: 1480882  Size: FS
Master Electrical Component List
Data Link Communications Description and Operation
Control Module References
Lighting References - 2 of 2
Fuse Block - Underhood Bussing
Fuse Block Underhood Fuses - BATT1, Fuse Block I/P Fuses - HEATED SEAT LH, HEATED SEAT RH, POWER LUMBAR LH/RH, Fuse Block I/P Circuit Breakers - Door Controls and Power Seats
Fuse Block Underhood Fuses - BATT1, Fuse Block I/P Fuses - HEATED SEAT LH, HEATED SEAT RH, POWER LUMBAR LH/RH, Fuse Block I/P Circuit Breakers - Door Controls and Power Seats
Courtesy, Underhood, I/P Compartment, Vanity Mirrors, Inside Rearview Mirror and Lamp Controls
G202 - 1 of 2