Fuse box diagram (fuse location), location and purpose of fuses and relays Hummer H3 / H3T (2005, 2006, 2007, 2008, 2009, 2010).
Checking and replacing fuses
The electrical circuits in your car are protected from short circuits by a combination of fuses and circuit breakers. This greatly reduces the chance of a fire due to electrical problems.
Look at the silver strip inside the fuse. If the strip is broken or melted, replace the fuse. Be sure to replace the faulty fuse with a new one of the same size and rating.
If you run into trouble on the road and don’t have a spare fuse, you can borrow a fuse of the same amperage. Just pick a feature of your car that you can live without — like the radio or cigarette lighter — and use the fuse if it’s rated for the amperage. Replace it as soon as possible.
Notification
- Before replacing a fuse, make sure the key has been removed from the ignition and that all services are turned off and/or disconnected.
- Do not repair fuses and never replace a blown fuse with a fuse of higher current rating. This may cause damage to the electrical system and fire.
- Never replace a broken fuse with anything other than a new fuse. Always use a good fuse of the same color.
- If the fuse blows again, contact a qualified service center.
Engine Compartment Fuse Box Diagram
The engine compartment fuse box is located in the engine compartment on the driver’s side. To remove the cover, press in on the tabs at the ends of the cover and lift. To replace the cover, align the tabs and press down on the cover until the tabs snap into place.
| No. | Description |
|---|---|
| 1 | Heated seats |
| 2 | Protective grille |
| 3 | Fuel pump |
| 4 | Ceiling light |
| 5 | Battery ignition switch |
| 6 | Front wiper |
| 7 | Adjustable 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 direction indicator, hazard signal |
| 21 | Transmission Control Module 1 |
| 22 | Mass Air Flow Sensor, Purge Solenoid |
| 23 | Injector |
| 24 | Fog light |
| 25 | Transmission Control Module B |
| 26 | Spare 4 |
| 27 | Airbags |
| 28 | Backup lamps |
| 29 | Anti-lock braking system, StabiliTrak |
| 30 | Rear window heating |
| 31 | Canister vent |
| 32 | Adjustable Voltage VSense+ |
| 33 | Ignition 1 |
| 34 | Transmission of infection |
| 35 | Cruise, interior rear view mirror |
| 36 | Horn |
| 37 | Rear driver side marker light |
| 38 | Power amplifier |
| 39 | Low beam daytime running lights |
| 40 | Headlight on the passenger side |
| 41 | Driver’s side headlight |
| 42 | Trailer reversing light |
| 43 | Front Park Lights |
| 44 | Air Injection Reactor (AIR) Solenoid |
| 45 | Auxiliary power 2 |
| 46 | Electronic throttle control |
| 47 | Oxygen sensor |
| 48 | Air conditioner clutch |
| 49 | Rear passenger side marker light |
| 50 | XM™ Satellite Radio |
| 51 | Auxiliary power 1 |
| 52 | StabiliTrak®, Anti-lock Braking System |
| 53 | Power Heater Switch |
| 54 | Stop |
| 55 | Trailer parking lights |
| 56 | Front direction indicator, hazard signal |
| 57 | Electric sunroof |
| 58 | Transfer case control unit switch |
| 59 | Climate control |
| 60 | Spare 8 |
| 61 | Power seats |
| 62 | Air pump |
| 63 | Passenger side window lift |
| 64 | Anti-lock brake system, StabiliTrak®2 solenoid |
| 65 | Windscreen Wiper Diode |
| 66 | Fuel pump |
| 67 | Anti-lock brakes, StabiliTrak®1 engine |
| 68 | Driver’s side window lift |
| 69 | Fog light |
| 70 | High and low beam headlights |
| 71 | Rear heater |
| 72 | Windscreen Wiper On/Off |
| 73 | Windshield wiper, high / low |
| 74 | Horn |
| 75 | Headlamp |
| 76 | Air conditioner clutch |
| 77 | Transmission Control Module |
| 78 | Run, start |
| 79 | Low beam daytime running lights |
| 80 | Air Injection Reactor (AIR) Solenoid |
| 81 | Transmission (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 power of accessories |
| 89 | Park lamp |
| 90 | Air Conditioner Clutch Diode |
| 91 | Megafuse |
Windscreen 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 down. If the overload is caused by an electrical problem, be sure to fix it.
Electric windows and other electrical devices
Circuit breakers protect power windows and other electrical accessories. When the current load is too great, the circuit breaker opens and closes, protecting the circuit until the problem is corrected or goes away.
Power circuit breakers and heated seats
Located under the front seat on the driver’s side is an automatic switch that controls the power and heated seat functions.