HUMMER H2 (2002 – 2003) – fuse box diagram
Year of production: 2002, 2003
Instrument panel fuse block
Theaccess door to the fuse block is located on the side edge of the dashboard on the driver’s side.
| Fuses | Using |
| RR Wiper | Rear windshield wiper switch |
| SEO ACCY | Optional special equipment accessories |
| WS WPR | Wipers |
| TBC ACCY | Accessory for body controller |
| IGN 3 | Heated rear seat module |
| 4WD | Four-wheel drive switch, air suspension switch / module |
| HTR A / C | Not used |
| LOCK | Power door lock relay |
| HVAC 1 | Interior rear view mirror, air conditioning system |
| L DOORS | Wiring harness connection |
| REJS | Cruise control |
| UNLOCK | Power door lock relay |
| RR FOG LP | Not used |
| BRAKE | Brake switch |
| IGN 0 | Transmission shift lock, power unit control module, gearbox |
| TBC IGN 0 | Body controller |
| VEH CHMSL | High-mounted stop light in the center of the vehicle and trailer |
| LT TRLR ST / TRN | Left turn signal / Stop Trailer |
| LT TRN | Left turn signals and warning signs |
| VEH STOP | Vehicle stop lights, brake module, electronic throttle control module |
| BODY | Wiring harness connector |
| RT TRLR ST / TRN | Right turn signal / Stop Trailer |
| RT TRN | Right turn signals and warning signs |
| DDM | Driver’s door module |
| AUX PWR 2 | Power outlets for the instrument panel and rear cargo compartment |
| LOCKS | Power supply for the rear door relay and power lock for the liftgate |
| ECC | Not used |
| TBC 2C | Body controller |
| FLASHER LAMP | Flasher module |
| CB LT DOORS | Switch on the left side of the rear window lifter and driver’s door module |
| TBC 2B | Body controller |
| TBC 2A | Body controller |
Center instrument panel fuse block
The center instrument panel fuse block is located under the instrument panel, to the left of the steering column.
| Device | Application |
| SEO | Special equipment option / Off-road lamp wiring harness connector |
| FILE IMAGE | Trailer brake wiring |
| UPFIT | Upfitter (unused) |
| SL RIDE | Ride control (not used) |
| HDLR 2 | Headliner wiring connector 2 |
| BODY | Body wiring connector |
| DEFOG | Rear defogger relay |
| HDLNR 1 | Headliner wiring connector 1 |
| REPLACEMENT RELAY | Unused |
| CB SEAT | Driver and passenger seat module switch |
| CB RT DOORS | Power operated right rear window, passenger door module |
| REPLACEMENT | Not used |
| INFO | Audio/navigation unit (unused) |
Fuse block under the hood
The fuseblock in the engine compartment is located on the driver’s side of the vehicle near the battery.
| Fuses | Use |
| STUD # 1 | Accessory/trailer power wiring |
| MBEC 1 | Electrical power supply for middle bus, front seats, right door |
| DMUCHER | Front air conditioning fan |
| LBEC 2 | Left side electrical center, door modules, door locks, auxiliary power outlet – rear cargo area and instrument panel |
| STUD # 2 | Accessory Power supply / Trailer wiring Brake power supply |
| ABS | Anti-lock brakes |
| VSES / ECAS | (ECAS) Electronically controlled air suspension |
| IGN A. | Ignition |
| IGN B. | Ignition |
| LBEC 1 | Left side electrical center, left door, body controller, blinker module |
| TRL PARK | Parking lamps Trailer electrical system |
| RR PARK | Rear side parking lamps and passenger side lamps |
| LR PARK | Rear parking lights and driver’s side markers |
| PARK LP | Parking light relay |
| STRTRER | Starter relay |
| INTPARK | Roof marker lamps |
| STOP LP | Stop lamps |
| TBC BATT | Body controller battery power supply |
| SEO B2 | Off-road lamps |
| 4WS | Vent solenoid canister |
| RR HVAC | Unused |
| AUX PWR | Auxiliary power socket – console |
| IGN 1 | Ignition relay |
| PCM 1 | Powertrain control module |
| ETC / ECM | Electronic throttle control, electronic brake controller |
| INJ 1 | Ignition coil, fuel injectors – unit 1 |
| INJ 2 | Ignition coil, fuel injector unit – unit 2 |
| IGN E. | Instrument cluster, air conditioning relay, turn signal / hazard light switch, starter relay, electronic brake controller TC2 mode switch |
| RTD | Battery supply for the electronic brake controller |
| TRL B / U | Spare lamps Trailer wires |
| PCM B | Powertrain control module, fuel pump |
| F / PMP | Fuel pump relay |
| 02A | Oxygen sensors |
| B / U LP | Reversing lights, automatic transmission lock control system |
| RR DEFOG | Rear window defogger |
| HDLP-HI | High beam relay |
| MAINTAIN | Not used |
| O2B | Oxygen sensors |
| PAN | Additional inflatable restraint system |
| FRT PARK | Front parking lights, Sidemarker lamps |
| DRL | Daytime running light relay |
| SEO IGN | Rear defogger relay |
| TBC IGN1 | Body controller ignition |
| HI HDLP-LT | High beam headlamp on the left side |
| LH HID | Not used |
| DRL | Daytime running lamps |
| IPC / DIC | Instrument cluster / driver information center |
| HVAC / ECAS | Air conditioning controller / electronically controlled air suspension |
| CIG LTR | Lighter |
| HI HDLP-RT | High beam headlamp on the right side |
| HDLP-LOW | Dipped beam relay |
| A / C COMP | Air conditioning compressor |
| A / C COMP | A/C compressor relay |
| RR CAP | Rear windshield wiper / washer |
| RADIO | Sound system |
| SEO B1 | Center-loaded electric center, heated rear seats, HomeLink |
| LO HDLP-LT | Headlight Left dipped beam headlight |
| BTSI | Transmission shift lock system |
| CRNK | Starting system |
| LO HDLP-RT | Headlight Dipped beam on the right side |
| FOG LP | Not used (relay) |
| FOG LP | Not used |
| HORN | Horn relay |
| W / S WASH | Windshield washer and rear window washer pump relay |
| W / S WASH | Windshield and rear window washer pump |
| INFO | OnStar |
| AMP RADIO | Radio amplifier |
| RH HID | Unused |
| HORN | Horn |
| EAP | Unused |
| TREC | All-wheel drive module |
| SBA | Unused |