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

DLC, Ground and Power


Object Number: 1853983  Size: FS
Master Electrical Component List
Data Link Communications Description and Operation
Control Module References
Lighting References, 1 of 2
Fuse Block - Underhood Bussing
Fuse Block - Underhood BATT3 and STOP/B/U/LAMPS Fuses, BCM Fuses: BTSI SOL/STR WHL LCK, RDO/S-BAND/VICS, REAR FOG/ALDL/TOP SWTCH, REVERSE LAMPS and TONNEAU RELSE, BCK/UP LAMP, STOP LAMP Relays
Class 2
GMLAN - M/T
GMLAN - A/T
Fuse Block - Underhood Fuse BATT5 BCM Fuses: DRIV DR SW, IGN SW/INTR SENS, ONSTAR, TELE SW/MEM SEAT MOD, and TPA
BCM Fuses: CLSTR/HUD, CRUISE SWTCH, CTSY/LAMP, DR LCK, EXH MDL, HVAC/PWR SND, ISRVM/HVAC and RUN CRNK Relay
Ground, Power and Wiper Motor
Ignition Modes
G104, G106, and G303
G202, 1 of 2
Figure 2:

Lighting References 1 of 2


Object Number: 1854528  Size: FS
Master Electrical Component List
Body Control System Description and Operation
Control Module References
Lighting References, 2 of 2
DLC, Ground and Power
Headlamp/DRL Controls
Hazard, Stop Lamps, and Turn Signal Outputs (Y07/Y67)
Hazard, Stop Lamps, and Turn Signal Outputs (Y87
Fuse Block - Underhood BATT3 and STOP/B/U/LAMPS Fuses, BCM Fuses: BTSI SOL/STR WHL LCK, RDO/S-BAND/VICS, REAR FOG/ALDL/TOP SWTCH, REVERSE LAMPS and TONNEAU RELSE, BCK/UP LAMP, STOP LAMP Relays
Headlamp/DRL Controls
Hazard, Stop Lamps, and Turn Signal Inputs
Figure 3:

Lighting References 2 of 2


Object Number: 1854529  Size: FS
Master Electrical Component List
Body Control System Description and Operation
Control Module References
Subsystem References, 1 of 2
Lighting References, 1 of 2
Hazard, Stop Lamps, and Turn Signal Inputs
Back Up Lamps
Rear (T79)
Fuse Block - Underhood BATT3 and STOP/B/U/LAMPS Fuses, BCM Fuses: BTSI SOL/STR WHL LCK, RDO/S-BAND/VICS, REAR FOG/ALDL/TOP SWTCH, REVERSE LAMPS and TONNEAU RELSE, BCK/UP LAMP, STOP LAMP Relays
Passenger Compartment Lamps
Front
Rear (T79)
Back Up Lamps
Rear (T79)
Figure 4:

Subsystem References 1 of 2


Object Number: 1854676  Size: FS
Master Electrical Component List
Body Control System Description and Operation
Control Module References
Subsystem References, 2 of 2
Lighting References, 2 of 2
Actuators and Handle Switches
Theft Deterrent Schematics
Pumps and Switches
Column Lock Schematics (ULS)
Back Up Lamps
Horn Schematics
Control Switch, DLC, Ground and Power
Cruise Controls Schematics
Brake Pedal Signal and Traction Control Switch
Ground, Power and Wiper Motor
Immobilizer Schematics
Indicators, Messages and Ajar/Open/Lock Switches
Figure 5:

Subsystem References 2 of 2


Object Number: 1854718  Size: FS
Master Electrical Component List
Body Control System Description and Operation
Control Module References
Subsystem References, 1 of 2
DLC, Folding Top Lid Controls, Ground and Power (CM7)
Manual Folding Top
DLC, Folding Top Lid Controls, Ground and Power (CM7)
DLC, Folding Top Lid Controls, Ground and Power (CM7)
Coupe (Y07)
Switches (CM7)
Pumps and Switches