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Fuse box diagram (fuse layout), location, and assignment of fuses and relays Hummer H2 (2002, 2003, 2004, 2005, 2006, 2007).
Checking and Replacing Fuses
The wiring circuits in your vehicle are protected from short circuits by a combination of fuses, circuit breakers, and fusible links. This greatly reduces the chance of damage caused by electrical problems.
Look at the silver-colored band inside the fuse. If the band is broken or melted, replace the fuse. Be sure to replace a bad fuse with a new one of the identical size and rating.
Notice
- Before replacing a fuse check that the key has been removed from the ignition and that all the services are switched off and/or disengaged.
- Do not repair fuses and never replace a blown fuse with one that has a higher amp rating. This can cause damage to the electrical system and fire.
- Never replace a broken fuse with anything other than a new fuse. Use always an intact fuse of the same color.
- If a fuse blows again contact a qualified service center.
Instrument Panel Fuse Box
The fuse block access door is on the driver’s side end of the instrument panel. Pull off the cover to access the fuse block.
| № | A | Protected Component |
|---|---|---|
| 1 | 15 | Rear Window Wiper/Washer Switch |
| 2 | 10 | Rear Heated Seats Modules |
| 3 | 15 | Transfer Case Shift Control Switch (Four Wheel Drive Switch), Electronically Controlled Air Suspension Switch/Module, Ride Height Switch |
| 4 | 10 | Brake Transmission Shift Interlock, Powertrain Control Module, Transmission |
| 5 | 15 | Stoplamps, Brake Module, Electronic Throttle Control Module, Turn Signal/Hazard Flasher Module, Fuse: "14" |
| 6 | 15 | Driver Door Module |
| 7 | 10 | Liftgate Door Lock Relay |
| 8 | 10 | Body Builder Provision |
| 9 | 30 | - |
| 10 | 10 | Inside Rearview Mirror, Climate Control System (HVAC Control Module and Actuators) |
| 11 | 10 | Cruise Control |
| 12 | 10 | Stop Lamp Switch |
| 13 | 10 | Body Control Module (BCM) |
| 14 | 10 | Vehicle and Trailer Center High Mounted Stop Lamp |
| 15 | 25 | Windshield Wipers |
| 16 | 10 | Body Control Module (BCM) |
| 17 | 10 | Left Turn Signal/Stop Trailer |
| 18 | 10 | Right Turn Signal/Stop Trailer |
| 19 | 20 | Instrument Panel and Rear Cargo Area Power Outlets |
| 20 | 15 | Body Control Module (BCM) |
| 21 | 15 | Body Control Module (BCM) |
| 22 | 10 | Left Turn Signals and Side Markers Lamps, Instrument Panel Cluster |
| 23 | 10 | Right Turn Signals and Side Markers Lamps, Instrument Panel Cluster |
| 24 | 20 | Door Lock/Unlock Relay |
| 25 | 25 | Turn Signal/Hazard Flasher Module |
| 26 | 15 | Body Control Module (BCM) |
| 27 | 10 | Passenger Door Module |
| CB1 | 25 | Left Rear Power Window Circuit Breaker and Driver Door Module |
| R1 | Power Door Lock | |
| R2 | Power Door Unlock | |
| R3 | - | |
| R4 | - | |
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Center Instrument Panel Utility Block
The center instrument panel utility block is located underneath the instrument panel, to the left of the steering column.
| № | A | Circuit Breaker |
|---|---|---|
| CB1 | 30 | Driver and Passenger Seat Module |
| CB2 | 25 | Right Rear Power Window, Passenger Door Module |
| R1 | Rear Window Defogger | |
| R2 | - | |
Engine Compartment Fuse Box
The underhood fuse/relay block is located near the battery in the engine compartment. Lift the cover for access to the fuse/relay block.
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| № | A | Protected Component |
|---|---|---|
| 1 | 40 | Accessory Power/Trailer Wiring |
| 2 | - | - |
| 3 | 50 | Circuit Breaker (Passenger Compartment Relay Box): "CB1", "CB2" |
| 4 | 40 | Blower Motor (High Speed) |
| 5 | 50 | Fuse (Passenger Compartment): "6", "19", "24" "27" |
| 6 | 30 | Off Road Lamps, Trailer Wiring |
| 7 | 60 | ABS |
| 8 | 60 | Electronically Controlled Air Suspension Relay |
| 9 | 40 | Ignition Switch |
| 10 | - | - |
| 11 | 40 | Ignition Switch |
| 12 | 50 | Fuse (Passenger Compartment): "20", "25" "26", "CB1" |
| 13 | 15 | Parking Lamps Trailer Wiring |
| 14 | 10 | Right Rear Parking and Side Marker Lamps, License Lamp |
| 15 | 10 | Left Rear Parking and Side Marker Lamps, License Lamp |
| 16 | 10 | Roof Marker Lamps, SIR Defeat Switch, Clearance Lamps, Marker Lamps, Trailer Jumper |
| 17 | 25 | Stop Lamp Switch |
| 18 | 10 | Body Control Module (BCM) |
| 19 | 25 | Sunroof |
| 20 | 30 | Electronic Brake Control Module, Off-Road Lamps |
| 21 | 15 | EVAP Canister Vent Solenoid |
| 22 | 30 | Rear HVAC Module |
| 23 | 20 | Auxiliary Power Outlet - Console |
| 24 | 15 | Powertrain Control Module (PCM), Evaporative Emission (EVAP) Canister Purge Solenoid, Mass Air Flow (MAF) Sensor, Intake Air Temperature (IAT) Sensor |
| 25 | 15 | Throttle Actuator Control (TAC), Electronic Brake Controller |
| 26 | 15 | Ignition Coils, Fuel Injectors |
| 27 | 15 | Ignition Coils, Fuel Injectors |
| 28 | 10 | Instrument Panel Cluster, Air Conditioning Relay, Turn Signal/Hazard Switch, Starter Relay, Electronic Brake Controller TC2 Mode Switch |
| 29 | 30 | Electronic Brake Controller |
| 30 | 10 | Backup Lamps Trailer Wiring |
| 31 | 20 | Powertrain Control Module, Fuel Pump |
| 32 | 15 | Oxygen Sensors |
| 33 | 20 | Backup Lamps, Park/Neutral Position Switch (PNP) |
| 34 | 30 | Rear Window Defogger Relay |
| 35 | 15 | Oxygen Sensors |
| 36 | 15 | Inflatable Restraint Instrument Panel Module Disable Switch, Inflatable Restraint Sensing and Diagnostic Module |
| 37 | 10 | Front Parking Lamps, Front Side Marker Lamps |
| 38 | 10 | Rear Window Defogger Relay |
| 39 | 10 | Body Control Module (BCM) |
| 40 | 10 | Left Headlamp (High Beam) |
| 41 | - | - |
| 42 | 10 | Daytime Running Light Relay |
| 43 | 10 | Instrument Panel Cluster/Driver Information Center |
| 44 | 10 | Climate Control Controller/ Electronically Controlled Air Suspension Module |
| 45 | 15 | Cigarette Lighter, Data Link Connector |
| 46 | 10 | Right Headlamp (High Beam) |
| 47 | 10 | Air Conditioning Compressor Relay |
| 48 | 25 | Rear Wiper/Washer |
| 49 | - | - |
| 50 | 15 | Audio System, Rear Seat Audio |
| 51 | 15 | Rear Heated Seats, HomeLink (Garage Door Opener) |
| 52 | 10 | Left Headlamp (Low Beam) |
| 53 | 10 | Brake Transmission Shift Interlock System |
| 54 | 10 | Starting System, Ignition Switch, Powertrain Control Module (PCM) |
| 55 | 10 | Right Headlamp (Low Beam) |
| 56 | - | - |
| 57 | 15 | Windshield and Rear Window Washer Pump |
| 58 | 15 | Vehicle Communication Interface Module (VCIM) |
| 59 | 30 | Radio Amplifier |
| 60 | - | - |
| 61 | 15 | Horn |
| 62 | - | - |
| 63 | 30 | Transfer Case Control Module (All-Wheel Drive Module) |
| 64 | - | - |
| 65 | 125 | Cust Feed |
| R1 | Parking Lamps, Side Marker Lamps | |
| R2 | Starter | |
| R3 | Ignition | |
| R4 | Fuel Pump | |
| R5 | Headlamp High Beam | |
| R6 | Daytime Running Light | |
| R7 | Headlamp (Low Beam) | |
| R8 | Air Conditioning Compressor | |
| R9 | - | |
| R10 | Horn | |
| R11 | Windshield and Rear Window Washer Pump | |
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