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Fuse box diagram (fuse layout), location, and assignment of fuses and relays Hummer H3 / H3T (2005, 2006, 2007, 2008, 2009, 2010).
Checking and Replacing Fuses
The wiring circuits in your vehicle are protected from short circuits by a combination of fuses and circuit breakers. This greatly reduces the chance of fires 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 you replace a bad fuse with a new one of the identical size and rating.
If you ever have a problem on the road and do not have a spare fuse, you can borrow one that has the same amperage. Just pick some feature of your vehicle that you can get along without – like the radio or cigarette lighter – and use its fuse if it is the correct amperage. Replace it as soon as you can.
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.
Engine Compartment Fuse Box Diagram
The engine compartment fuse block is located on the driver’s side of the engine compartment. To remove the cover, push in on the tabs at the ends of the cover and lift. To reinstall the cover, line up the tabs and push down on the cover until the tabs click into place.
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| № | Description |
|---|---|
| 1 | Heated Seats |
| 2 | Grille Guard |
| 3 | Fuel Pump |
| 4 | Roof Lamp |
| 5 | Battery Ignition Switch |
| 6 | Front Wiper |
| 7 | Regulated Voltage Control Power |
| 8 | Power Locks |
| 9 | Sunroof, Front Washer Pump |
| 10 | Accessories (SPO) |
| 11 | Air Compressor |
| 12 | Transfer Case Control Module |
| 13 | Radio, Heating, Ventilation, Air Conditioning Display |
| 14 | Body Control Module |
| 15 | Rear Wiper Motor |
| 16 | Rear Wiper Pump Switch |
| 17 | Air Injection Reactor (AIR) Solenoid |
| 18 | Spare 6 |
| 19 | Cluster |
| 20 | Rear Turn Signal, Hazard Signal |
| 21 | Powertrain Control Module 1 |
| 22 | Mass Air Flow Sensor, Purge Solenoid |
| 23 | Injector |
| 24 | Fog Lamp |
| 25 | Powertrain Control Module B |
| 26 | Spare 4 |
| 27 | Airbags |
| 28 | Back-up Lamps |
| 29 | Anti-lock Brakes, StabiliTrak |
| 30 | Rear Window Defogger |
| 31 | Canister Vent |
| 32 | Regulated Voltage Control VSense+ |
| 33 | Ignition 1 |
| 34 | Transmission |
| 35 | Cruise, Inside Rearview Mirror |
| 36 | Horn |
| 37 | Driver’s Side Rear Park Lamp |
| 38 | Amplifier |
| 39 | Reduced Intensity Low-Beam Daytime Running Lamps |
| 40 | Passenger’s Side Headlamp |
| 41 | Driver’s Side Headlamp |
| 42 | Trailer Back-Up Lamp |
| 43 | Front Park Lamps |
| 44 | Air Injection Reactor (AIR) Solenoid |
| 45 | Auxiliary Power 2 |
| 46 | Electronic Throttle Control |
| 47 | Oxygen Sensor |
| 48 | Air Conditioning Clutch |
| 49 | Passenger’s Side Rear Park Lamp |
| 50 | XM™ Satellite Radio |
| 51 | Auxiliary Power 1 |
| 52 | StabiliTrak®, Anti-lock Brakes |
| 53 | Power Heater Switch |
| 54 | Stop |
| 55 | Trailer Parking Lamps |
| 56 | Front Turn Signal, Hazard Signal |
| 57 | Power Sunroof |
| 58 | Transfer Case Control Module Switch |
| 59 | Climate Control |
| 60 | Spare 8 |
| 61 | Power Seats |
| 62 | Air Pump |
| 63 | Passenger’s Side Power Window |
| 64 | Anti-lock Brakes, StabiliTrak®2 Solenoid |
| 65 | Wiper Diode |
| 66 | Fuel Pump |
| 67 | Anti-lock Brakes, StabiliTrak®1 Motor |
| 68 | Driver’s Side Power Window |
| 69 | Fog Lamp |
| 70 | High, Low Beam Headlamps |
| 71 | Rear Defogger |
| 72 | Windshield Wiper On/Off |
| 73 | Windshield Wiper High/Low |
| 74 | Horn |
| 75 | Headlamp |
| 76 | Air Conditioning Clutch |
| 77 | Powertrain Control Module |
| 78 | Run, Crank |
| 79 | Reduced Intensity Low-Beam Daytime Running Lamps |
| 80 | Air Injection Reactor (AIR) Solenoid |
| 81 | Powertrain (Starter) |
| 82 | Climate Control Fan |
| 83 | Electronic Brake Controller |
| 84 | Trailer B+ Fuse |
| 85 | Starter |
| 86 | Spare 2 |
| 87 | Heating, Ventilation, Air Conditioning |
| 88 | Retained Accessory Power |
| 89 | Park Lamp |
| 90 | Air Conditioning Clutch Diode |
| 91 | Megafuse |
Windshield Wiper Fuses
The windshield wiper motor is protected by a circuit breaker and a fuse. If the motor overheats due to heavy snow or ice, the wiper will stop until the motor cools. If the overload is caused by some electrical problem, be sure to get it fixed.
Power Windows and Other Power Options
Circuit breakers protect the power windows and other power accessories. When the current load is too heavy, the circuit breaker opens and closes, protecting the circuit until the problem is fixed or goes away.
Power and Heated Seat Circuit Breakers
There is a circuit breaker located underneath the driver’s side front seat that controls the power and heated seat functions.
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