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In this article, you will find information about the fuses of the Hummer H3 (models 2006, 2007, 2008, 2009, and 2010) and Hummer H3T (models 2009 and 2010), including diagrams of the fuse boxes, a list of fuses and relays, their designation, and the location of the fuse blocks within the vehicle.
Checking and Replacing Fuses in Hummer H3 & H3T
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.
Caution!
- Data on the replacement fuse must match the data on the defective fuse.
- Before replacing a fuse, turn every vehicle electrical switch off.
Location of the Fuse Box
The fuse box is located on the driver 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 clicks into place.
Notice: Spilling liquid on any electrical components on the vehicle may damage it. Always keep the covers on any electrical component.
Fuse Box Diagrams
2006
Engine Compartment Fuse Block
| № | Usage |
|---|---|
| 1 | Heated Seats |
| 2 | Grille Guard |
| 3 | Fuel Pump |
| 4 | Roof Lamp |
| 5 | Battery Ignition Switch |
| 6 | Front Wiper |
| 7 | Spare 1 |
| 8 | Power Locks |
| 9 | Sunroof, Front Washer Pump |
| 10 | Accessories (SPO) |
| 11 | Not Used |
| 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 | Spare 2 |
| 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 | Spare 5 |
| 33 | Ignition 1 |
| 34 | Transmission |
| 35 | Cruise, Inside Rearview Mirror |
| 36 | Horn |
| 37 | Driver’s Side Rear Park Lamp |
| 38 | Amplifier |
| 39 | Spare 7 |
| 40 | Passenger’s Side Headlamp |
| 41 | Driver’s Side Headlamp |
| 42 | Trailer Back-Up Lamp |
| 43 | Front Park Lamps |
| 44 | Not Used |
| 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 Motor |
| 67 | Anti-lock Brakes, StabiliTrak 1 Solenoid |
| 68 | Driver’s Side Power Window |
| 82 | Climate Control Fan |
| 83 | Electronic Brake Controller |
| 84 | Trailer B+ Fuse |
| 85 | Starter |
| 91 | Megafuse |
| 66 | Fuel Pump |
| 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 | Spare 1 |
| 80 | Not Used |
| 81 | Powertrain (Starter) |
| 86 | Spare 2 |
| 87 | Heating, Ventilation, Air Conditioning |
| 88 | Retained Accessory Power |
| 89 | Park Lamp |
| 65 | Wiper Diode |
| 90 | Air Conditioning Clutch Diode |
2007
Engine Compartment Fuse Block
| № | Usage |
|---|---|
| 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 |
| 67 | Anti-lock Brakes, StabiliTrak 1 Motor |
| 68 | Driver’s Side Power Window |
| 82 | Climate Control Fan |
| 83 | Electronic Brake Controller |
| 84 | Trailer B+ Fuse |
| 85 | Starter |
| 91 | Megafuse |
| 66 | Fuel Pump |
| 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) |
| 86 | Spare 2 |
| 87 | Heating, Ventilation, Air Conditioning |
| 88 | Retained Accessory Power |
| 89 | Park Lamp |
| 65 | Wiper Diode |
| 90 | Air Conditioning Clutch Diode |
2008
Engine Compartment Fuse Block
| № | Usage |
|---|---|
| 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 | Transmission Control Module (TCM) |
| 27 | Airbags |
| 28 | Back-up Lamps |
| 29 | Antilock 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 Side Rear Park Lamp |
| 38 | Amplifier |
| 39 | Reduced Intensity Low-Beam Daytime Running Lamps |
| 40 | Passenger Side Headlamp |
| 41 | Driver 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 Side Rear Park Lamp |
| 50 | Spare |
| 51 | Auxiliary Power 1 |
| 52 | StabiliTrak, Antilock 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 Side Power Window |
| 64 | Antilock Brakes, StabiliTrak 2 Solenoid |
| 67 | Antilock Brakes, StabiliTrak 1 Motor |
| 68 | Driver Side Power Window |
| 82 | Climate Control Fan |
| 83 | Electronic Brake Controller |
| 84 | Trailer B+ Fuse |
| 85 | Starter |
| 91 | Megafuse |
| 66 | Fuel Pump |
| 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) |
| 86 | Spare 2 |
| 87 | Heating, Ventilation, Air Conditioning |
| 88 | Retained Accessory Power |
| 89 | Park Lamp |
| 65 | Wiper Diode |
| 90 | Air Conditioning Clutch Diode |
2009
Engine Compartment Fuse Block
| № | Usage |
|---|---|
| 1 | Heated Seats |
| 2 | Grille Guard |
| 3 | Stop Lamp (H3T Only) |
| 4 | Roof Rack Lamps |
| 5 | Battery Ignition Switch |
| 6 | Front Wiper |
| 7 | Regulated Voltage Control Power |
| 8 | Power Locks |
| 9 | Sunroof, Front Washer Pump |
| 10 | Accessories (SPO) |
| 11 | Not Used |
| 12 | Transfer Case Control Module |
| 13 | Radio |
| 14 | Body Control Module |
| 15 | Rear Wiper Motor (H3 Only) |
| 16 | Rear Wiper Pump Switch (H3 Only) |
| 17 | Air Injection Reactor (AIR) Pump Relay / Transmission Control Module (TCM) (V8 Only) |
| 18 | Rear Vision Camera |
| 19 | Cluster |
| 20 | Rear Turn Lamp, Hazard Lamp |
| 21 | Powertrain Control Module 1 |
| 22 | Mass Air Flow Sensor, Canister Vent Purge Solenoid |
| 23 | lnjector / V8 Coil |
| 24 | Fog Lamp |
| 25 | Powertrain Control Module B |
| 26 | Transmission Control Module (TCM) |
| 27 | Airbags |
| 28 | Not Used |
| 29 | Antilock Brakes, StabiliTrak |
| 30 | Rear Window Defogger |
| 31 | Canister Vent |
| 32 | Regulated Voltage Control Sensor |
| 33 | Ignition 1 (V8 Only) |
| 34 | Transmission |
| 35 | Cruise Control, Miscellaneous |
| 36 | Horn |
| 37 | Driver Side Rear Park Lamp |
| 38 | Amplifier |
| 39 | Daytime Running Lamps |
| 40 | Passenger Side Headlamp |
| 41 | Driver Side Headlamp |
| 42 | Trailer Back-Up Lamp |
| 43 | Front Park Lamps |
| 44 | Air Injection Reactor (AIR) Solenoid |
| 45 | Auxiliary Power 2 / Cigarette Lighter |
| 46 | Electronic Throttle Control |
| 47 | Oxygen Sensor |
| 48 | Air Conditioning Clutch |
| 49 | Rear Park Lamp |
| 50 | Stop Lamp |
| 51 | Auxiliary Power 1 / Cigarette Lighter |
| 52 | StabiliTrak, Antilock Brakes |
| 53 | Power Heated Seat, Belt Switch |
| 54 | Fuel System Control Module (FSCM) |
| 55 | Trailer Parking Lamps |
| 56 | Front Turn Signal, Hazard Signal / Courtesy Mirror |
| 57 | Power Sunroof |
| 58 | Transfer Case Control Module Switch |
| 59 | Climate Control, Control Head |
| 60 | Back-Up Lamp |
| 61 | Power Seats |
| 62 | AIR Pump |
| 63 | Passenger Side Power Window |
| 64 | Antilock Brakes, StabiliTrak 2 Solenoid |
| 67 | Antilock Brakes, StabiliTrak 1 Motor |
| 68 | Driver Side Power Window |
| 82 | Climate Control Fan |
| 83 | Electronic Brake Controller |
| 84 | Trailer B+ Fuse |
| 85 | Starter |
| 91 | Generator Megafuse |
| 66 | Stop Lamp (H3T Only) |
| 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 (Starter) |
| 78 | Run, Crank |
| 79 | Daytime Running Lamps |
| 80 | Air Injection Reactor (AIR) Solenoid |
| 81 | Powertrain |
| 86 | Back Up Lamps |
| 87 | Ignition 3 Heating, Ventilation, Air Conditioning |
| 88 | Retained Accessory Power / Accessory |
| 89 | Park Lamp |
| 65 | Wiper Diode |
| 90 | Air Conditioning Clutch Diode |
2010
Engine Compartment Fuse Block
| № | Usage |
|---|---|
| 1 | Heated Seats |
| 2 | Grille Guard |
| 3 | Stop Lamp (H3T Only) |
| 4 | Roof Rack Lamps |
| 5 | Battery Ignition Switch |
| 6 | Front Wiper |
| 7 | Regulated Voltage Control Power |
| 8 | Power Locks |
| 9 | Sunroof, Front Washer Pump |
| 10 | Accessories (SPO) |
| 11 | Not Used |
| 12 | Transfer Case Control Module |
| 13 | Radio |
| 14 | Body Control Module |
| 15 | Rear Wiper Motor (H3 Only) |
| 16 | Rear Wiper Pump Switch (H3 Only) |
| 17 | Air Injection Reactor (AIR) Pump Relay / Transmission Control Module (TCM) (V8 Only) |
| 18 | Rear Vision Camera |
| 19 | Cluster |
| 20 | Rear Turn Lamp, Hazard Lamp |
| 21 | Powertrain Control Module 1 |
| 22 | Mass Air Flow Sensor, Canister Vent Purge Solenoid |
| 23 | lnjector / V8 Coil |
| 24 | Fog Lamp |
| 25 | Powertrain Control Module B |
| 26 | Transmission Control Module (TCM) |
| 27 | Airbags |
| 28 | Not Used |
| 29 | Antilock Brake System, StabiliTrak |
| 30 | Rear Window Defogger |
| 31 | Canister Vent |
| 32 | Regulated Voltage Control Sensor |
| 33 | Ignition 1 |
| 34 | Transmission |
| 35 | Cruise Control, Miscellaneous |
| 36 | Horn |
| 37 | Driver Side Rear Park Lamp |
| 38 | Amplifier |
| 39 | Daytime Running Lamps |
| 40 | Passenger Side Headlamp |
| 41 | Driver Side Headlamp |
| 42 | Trailer Back-Up Lamp |
| 43 | Front Park Lamps |
| 44 | Air Injection Reactor (AIR) Solenoid |
| 45 | Auxiliary Power 2 / Cigarette Lighter |
| 46 | Electronic Throttle Control |
| 47 | Oxygen Sensor |
| 48 | Air Conditioning Clutch |
| 49 | Rear Park Lamp |
| 50 | Stop Lamp |
| 51 | Auxiliary Power 1 / Cigarette Lighter |
| 52 | StabiliTrak, Antilock Brake System |
| 53 | Power Heated Seat, Belt Switch |
| 54 | Fuel System Control Module (FSCM) |
| 55 | Trailer Parking Lamps |
| 56 | Front Turn Signal, Hazard Signal, Courtesy Mirror |
| 57 | Power Sunroof |
| 58 | Transfer Case Control Module Switch |
| 59 | Climate Controls Control Head |
| 60 | Back-Up Lamp |
| 61 | Power Seats |
| 62 | Air Injection Reactor (AIR) Pump |
| 63 | Passenger Side Power Window |
| 64 | Antilock Brake System, StabiliTrak 2 Solenoid |
| 67 | Antilock Brake System, StabiliTrak 1 Motor |
| 68 | Driver Side Power Window |
| 82 | Climate Control Fan |
| 83 | Electronic Brake Controller |
| 84 | Trailer B+ Fuse |
| 85 | Starter |
| 91 | Generator Megafuse |
| 66 | Stop Lamp (H3T Only) |
| 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 (Starter) |
| 78 | Run, Crank |
| 79 | Daytime Running Lamps |
| 80 | Air Injection Reactor (AIR) Solenoid |
| 81 | Powertrain |
| 86 | Back-up |
| 87 | Ignition 3 (Heating, Ventilation, Air Conditioning) |
| 88 | Retained Accessory Power / Accessory |
| 89 | Park Lamp |
| 65 | Wiper Diode |
| 90 | Air Conditioning Clutch Diode |