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In this article, we consider the second-generation GMC Sonoma, produced from 1994 to 2004. Here you will find fuse box diagrams of GMC Sonoma 1999, 2000, 2001, 2002, 2003, and 2004, get information about the location of the fuse panels inside the car, and learn about the assignment of each fuse (fuse layout) and relay.
Fuse Layout GMC Sonoma 1999-2004
Table of Contents
Passenger Compartment Fuse Box
Fuse Box Location
The instrument panel fuse block is at the driver’s end of the instrument panel. Remove the cover by turning the fastener counterclockwise. Extra fuses and the fuse extractor are provided in the cover. To reinstall the fuse panel cover, push in and turn the fastener clockwise.
Fuse Box Diagram
| № | Usage |
|---|---|
| A | Not Used |
| B | Not Used |
| 1 | Not Used |
| 2 | Cigarette Lighter, Data Link Connector |
| 3 | 1999-2002: Cruise Control, Body Controls TBC, Cruise Module, Cruise Switch 2003-2004: Cruise Control Module and Switch, Body Control Module, Heated Seats |
| 4 | 1999-2002: Gages, Body Controls TBC, Instrument Panel Cluster, B+ Power 2003-2004: Gages, Body Control Module, Instrument Panel Cluster |
| 5 | Parking Lamps, Power Window Switch, Body Control Module, Ashtray Lamp |
| 6 | 2001-2004: Steering Wheel Radio Controls |
| 7 | Headlamps Switch, Body Control Module, Headlamp Relay |
| 8 | 1999-2002: Courtesy Lamps, Inadvertent Power Relay 2003-2004: Courtesy Lamps, Battery Run-Down Protection |
| 9 | Heating, Ventilation, Air Cooling Control Head (Manual) |
| 10 | Turn Signal |
| 11 | Instrument Panel Cluster, Engine Control Module |
| 12 | Interior Lights |
| 13 | Auxiliary Power |
| 14 | Power Locks Motor |
| 15 | 4WD Switch, Engine Controls (VCM, PCM, Transmission) |
| 16 | Supplemental Inflatable Restraint |
| 17 | Front Wiper |
| 18 | 2001-2004: Steering Wheel Radio Controls |
| 19 | Radio, Battery |
| 20 | 2001-2004: Amplifier |
| 21 | Heating, Ventilation, Air Cooling (Manual), Heating,Ventilation, Air Cooling (Automatic), Heating, Ventilation, Air Cooling Sensors (Automatic) |
| 22 | Anti-Lock Brakes (ABS) |
| 23 | Rear Wiper |
| 24 | Radio, Ignition |
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Engine Compartment Fuse Box
Fuse Box Location
The fuse block is under the hood on the driver’s side of the engine compartment. Remove the cover by turning the fastener counterclockwise. To reinstall the fuse panel cover, push in and turn the fastener clockwise.
Fuse Box Diagram
| Fuse | Usage |
|---|---|
| TRL TRN | 2003-2004: Trailer Left Turn |
| TRR TRN | 2003-2004: Trailer Right Turn |
| TRL B/U | 2003-2004: Trailer Back Up Lamps |
| VEH B/U | Vehicle Back Up Lamps |
| HDLP PWR | 2003-2004: Headlamp Power |
| RT TURN | Right Turn Signal Front |
| LT TURN | Left Turn Signal Front |
| HDLP W/W | Not Used |
| LT TRN | Left Turn Signal Rear |
| RT TRN | Right Turn Signal Rear |
| RR PRK | Right Rear Parking Lamps |
| TRL PRK | 2003-2004: Trailer Park Lamps |
| LT HDLP | Left Headlamp |
| RT HDLP | Right Headlamp |
| FR PRK | Front Parking Lamps |
| INT BAT | Instrument Panel Fuse Block Feed |
| ENG 1 | Engine Sensors/Solenoids, MAF, CAM, PURGE, VENT |
| ECM B | Engine Control Module, Fuel Pump Module, Oil Pressure |
| ABS | Anti-Lock Brake System |
| ECM 1 | Engine Control Module Injectors |
| F/PUMP | Fuel Pump |
| DRL | Daytime Running Lamps |
| A/C | Air Conditioning |
| W/W PMP | Not Used |
| HORN | Horn |
| BTSI | Automatic Transmission Shift Lock Control System |
| B/U LP | Back Up Lamps |
| IGN B | Column Feed, Ignition 2, 3, 4 |
| STARTER | Starter |
| RAP | Retained Accessory Power |
| LD LEV | Not Used |
| OXYSEN | Oxygen Sensor |
| IGN E | Engine |
| MIR/LKS | Mirrors, Door Locks |
| FOG LP | Fog Lamps |
| IGN A | Starting and Charging Ignition 1 |
| STUD #2 | Accessory Feeds, Electric Brake |
| PARK LP | Parking Lamps |
| LR PRK | Left Rear Parking Lamps |
| LIFTGLASS | Liftglass |
| IGN C | Starter Solenoid, Fuel Pump, PRNDL |
| HTDSEAT | 2002-2004: Heated Seat |
| HVAC | Heating,Ventilation, Air Cooling System |
| TRCHMSL | 2003-2004: Trailer Center PHiqh Mount Stop Light |
| RRDFOG | Rear Defogger |
| TBC | Truck Body Computer |
| CRANK | Clutch Switch, NSBU Switch |
| CHMSL | Center High Mounted Stoplamp |
| HAZLP | Hazard Lamps |
| VECHMSL | Vehicle Center High-Mounted Stop Lamp |
| RR DEFOG | Rear Defogger |
| HTDMIR | Heated Mirror |
| ATC | Transfer Case (Four-Wheel Drive) |
| STOPLP | Stop Lamps |
| RR W/W | Rear Window Wiper |
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