Hummer H2 (2002 – 2007) Fuse Box Location & Diagrams
The Hummer H2 (2002–2007) fuse box protects essential electrical systems and helps manage power throughout the vehicle. Knowing the fuse box location, fuse assignments, and diagrams makes it easier to identify electrical issues, check blown fuses, and maintain reliable operation of your Hummer H2.
Fuse Box Location
Passenger Compartment Fuse Box
The Instrument Panel Fuse Box is located behind the cover on the driver’s side edge of the instrument panel. Pull off the cover to access it.
Engine Compartment Fuse Box
Fuse Box Diagrams
Passenger Compartment Fuse Box
Main Fuse Box
| Name | Description |
|---|---|
| RR WIPER | Rear Window Wiper Switch |
| SEO ACCY | 2003: Not Used 2004-2007: Special Equipment Option Accessory |
| WS WPR | Windshield Wipers |
| TBC ACCY | Truck Body Controller Accessory |
| IGN 3 | Rear Heated Seats Module |
| 4WD | Four-Wheel Drive Switch, Air Suspension Switch/Module |
| HTR A/C | Not Used |
| LOCK | Power Door Lock Relay (Lock Function) |
| HVAC 1 | Inside Rearview Mirror, Climate Control System |
| L DOOR | Driver’s Door Harness Connection |
| CRUISE | Cruise Control |
| UNLOCK | Power Door Lock Relay (Unlock Function) |
| RR FOG LP | Not Used |
| BRAKE | Brake Switch |
| PDM | 2003: Passenger Door Module |
| DRIVER UNLOCK | 2004-2007: Power Door Lock Relay (Driver’s Door Unlock Function) |
| IGN 0 | Brake Transmission Shift Interlock, Powertrain Control Module, Transmission |
| TBC IGN 0 | Truck Body Controller |
| VEH CHMSL | Vehicle and Trailer High Mounted Stoplamp |
| LT TRLR ST/TRN | Left Turn Signal/Stop Trailer |
| LT TRN | Left Turn Signals and Sidemarkers |
| VEH STOP | Vehicle Stoplamps, Brake Module, Electronic Throttle Control Module |
| RT TRLR ST/TRN | Right Turn Signal/Stop Trailer |
| RT TRN | Right Turn Signals and Sidemarkers |
| BODY | Harness Connector |
| DDM | Driver Door Module |
| LOCKS | Rear Doors and Liftgate Power Lock Relay Feed |
| ECC | 2003: Not Used 2004-2007: Liftgate |
| TBC 2C | Truck Body Controller |
| FLASH | Flasher Module |
| CB LT DOORS | Left Rear Power Window Circuit Breaker and Driver Door Module |
| TBC 2B | Truck Body Controller |
| TBC 2A | Truck Body Controller |
| AUX PWR 2 | 2003-2004: Instrument Panel Outlets, Rear Cargo Area Power Outlets 2005-2007: Midgate Controller (SUT Only) – Circuit Breaker |
Instrument Panel Utility Block
It is located underneath the instrument panel, to the left of the steering column.
| Name | Description |
|---|---|
| SEO | 2003-2005: Special Equipment Option/Off-road Lamps Harness Connector 2006-2007: Special Equipment Option |
| TRAILER | 2003-2005: Trailer Brake Wiring 2006-2007: Trailer Brake Wiring, Off-Road Lamps Harness Connector |
| UPFIT | Upfitter (Not Used) |
| SL RIDE | Ride Control (Not Used) |
| HDLNR 2 | Headliner Wiring Connector 2 |
| BODY | Body Wiring Connector |
| DEFOG | Rear Defogger Relay |
| HDLNR 1 | Headliner Wiring Connector 1 |
| SPARE RELAY | Not Used |
| CB SEAT | Driver and Passenger Seat Module Circuit Breaker |
| CB RT DOOR | Rear Right Power Window, Passenger Door Module |
| SPARE | Not Used |
| INFO | Infotainment Unit (Not Used) |
Engine Compartment Fuse Box
Hummer H2 (2002 – 2007)
2002-2004
2005
2006
2007
| Name | Description |
|---|---|
| GLOW PLUG | Not Used |
| CUST FEED | Gasoline Accessory Power |
| HYBRID | 2005: Hybrid 2006-2007: Not Used |
| WSW/HTR | Heated Windshield Washer (Special Edition Only) |
| STUD #1 | Accessory Power/Trailer Wiring |
| MBEC 1 | Mid Bussed Electrical Center Power Feed, Front Seats, Right Doors |
| BLWR / BLOWER | Front Climate Control Fan |
| LBEC 2 | Left Bussed Electrical Center, Door Modules, Door Locks, Auxiliary Power Outlet—Rear Cargo Area and Instrument Panel |
| STUD #2 | Accessory Power/Trailer Wiring Brake Feed |
| ABS | Anti-lock Brakes |
| VSES/ECAS | Electronically Controlled Air Suspension |
| IGN A | Ignition Switch |
| IGN B | Ignition Switch |
| LBEC 1 | Left Bussed Electrical Center, Left Doors, Truck Body Controller, Flasher Module |
| TRL PARK | Parking Lamps Trailer Wiring |
| RR PARK | Passenger’s Side Rear Parking and Sidemarker Lamps |
| LR PARK | Driver’s Side Rear Parking and Sidemarker Lamps |
| PARK LP | Parking Lamps Relay |
| STRTR / STARTER | Starter Relay |
| INTPARK | Roof Marker Lamps |
| STOP LP | Stoplamps |
| TBC BATT | Truck Body Controller Battery Feed |
| SEO B2 | Off-Road Lamps |
| 4WS | 2003-2005: Vent Solenoid Canister 2006-2007: Not Used |
| RR HVAC | Not Used |
| AUX PWR | 2003-2004: Auxiliary Power Outlet – Console 2005-2007: Instrument Panel Outlets, Rear Cargo Area Power Outlets, Console |
| PCM 1 | Powertrain Control Module |
| ETC/ECM | Electronic Throttle Control, Electronic Brake Controller |
| IGN E | Instrument Panel Cluster, Air Conditioning Relay, Turn Signal/Hazard Switch, Starter Relay, Electronic Brake Controller TC2 Mode Switch |
| RTD | Electronic Brake Controller Battery Feed |
| TRL B/U | Backup Lamps Trailer Wiring |
| F/PMP | Fuel Pump (Relay) |
| B/U LP | Back-up Lamps, Automatic Transmission Shift Lock Control System |
| RR DEFOG | Rear Window Defogger |
| HDLP-HI | Headlamp High Beam Relay |
| PRIME | Not Used |
| AIRBAG / SIR | Supplemental Inflatable Restraint System |
| FRT PARK | Front Parking Lamps, Sidemarker Lamps |
| DRL | Daytime Running Lamps (Relay) |
| SEO IGN | Rear Defog Relay |
| TBC IGN1 | Truck Body Controller Ignition |
| HI HDLP-LT | Driver’s Side High Beam Headlamp |
| LH HID | Not Used |
| DRL | Daytime Running Lamps |
| RVC | Regulated Voltage Control |
| IPC/DIC | Instrument Panel Cluster/ Driver Information Center |
| HVAC/ECAS | Climate Control Controller/Electronically Controlled Air Suspension |
| CIG LTR | Cigarette Lighter |
| HI HDLP-RT | Passenger’s Side High Beam Headlamp |
| HDLP-LOW | Headlamp Low Beam Relay |
| A/C COMP | Air Conditioning Compressor Relay |
| A/C COMP | Air Conditioning Compressor |
| TCMB | Transmission Control Module |
| RR WPR | Rear Wiper/Washer |
| RADIO | Audio System |
| SEO B1 | Mid Bussed Electrical Center, Universal Home Remote System, Rear Heated Seats |
| LO HDLP-LT | Driver’s Side Headlamp Low Beam |
| BTSI | Brake Transmission Shift Interlock System |
| CRNK | Starting System |
| LO HDLP-RT | Passenger’s Side Headlamp Low Beam |
| FOG LP | Not Used |
| FOG LP | Not Used |
| HORN | Horn Relay |
| W/S WASH | Windshield and Rear Window Washer Pump Relay |
| W/S WASH | Windshield and Rear Window Washer Pump |
| INFO | OnStar |
| RADIO AMP | Radio Amplifier |
| RH HID | Not Used |
| HORN | Horn |
| EAP | Not Used |
| TREC | Four-Wheel Drive Module |
| SBA | Not Used |
| INJ2 | Ignition Coil, Fuel Injectors-Bank 2 |
| INJ1 | Ignition Coil, Fuel Injectors-Bank 1 |
| O2A | Oxygen Sensors. |
| O2B | Oxygen Sensors. |
| IGN1 | Ignition 1 |
| PCM B | Powertrain Control Module, Fuel Pump. |
| SBA | Supplemental Brake Assist / Not Used. |
| S/ROOF | Sunroof. |
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