Table of Contents
The Hummer H3 is a mid-size SUV manufactured by American automaker Hummer from 2005 to 2010 at assembly plants in Shreveport, Louisiana (USA) and Port Elizabeth (South Africa). Built on GM’s GMT345 platform—shared with the Chevrolet Colorado and GMC Canyon—this guide provides detailed fuse box diagrams and power distribution center layouts for first-generation Hummer H3 models across model years 2005, 2006, 2007, 2008, 2009, and 2010.
Below are the locations, component views, and schema diagrams for the power distribution centers. Fuses for the “Cigarette Lighter” and “Fuel Pump” circuits are highlighted in bold.
Engine Compartment
Located on the driver’s side of the engine compartment, beneath a protective plastic cover.
To access the fuse panel, release the cover by depressing the tabs on both ends and lifting upward.
General view of the Hummer H3 fuse box.
| Fuse Box Diagram | |
|---|---|
|
|
| No. | Protected Component / Circuit |
| Diodes | |
| 65 | Windshield Wiper |
| 90 | A/C Clutch |
| Relays | |
| 66 | 2005–2008: Fuel Pump Relay |
| 2010: Stop Lamps (H3T only) | |
| 69 | Fog Lamps Relay |
| 70 | Headlamp High/Low Beam |
| 71 | Rear Window Defogger Relay |
| 72 | Windshield Wiper (On/Off) |
| 73 | Windshield Wiper (High/Low Speed) |
| 74 | Horn Relay |
| 75 | Headlamp Relay |
| 76 | A/C Clutch Relay |
| 77 | 2006–2008: Powertrain Control Module (PCM) |
| 2010: Powertrain Control Module (Starter) | |
| 78 | Run / Crank Relay |
| 79 | 2005–2006: Reserved 1 |
| 2007–2008: Reduced Intensity Low-Beam Daytime Running Lamps | |
| 2010: Daytime Running Lamps (DRL) | |
| 80 | 2006: Not Used |
| 2007–2008: Secondary Air Injection (AIR) Solenoid | |
| 81 | 2006–2008: Powertrain (Starter) |
| 2010: Powertrain | |
| 86 | 2006–2008: Reserved 2 |
| 2010: Backup Lamps | |
| 87 | 2005–2008: Heating, Ventilation, Air Conditioning (HVAC) |
| 2010: Ignition 3 (HVAC) | |
| 88 | Retained Accessory Power (RAP) |
| 89 | Parking Lamps |
| Fuses | |
| 1 | Heated Seats |
| 2 | Grille Guard Lamps |
| 3 | 2005–2008: Fuel Pump |
| 2010: Stop Lamps (H3T only) | |
| 4 | Roof Lamps |
| 5 | Battery / Ignition Switch |
| 6 | Front Windshield Wiper |
| 7 | 2005–2006: Reserved 1 |
| 2007–2010: Regulated Voltage Control (RVC) Power | |
| 8 | Power Door Locks |
| 9 | Sunroof, Front Washer Pump |
| 10 | Accessories (SPO) |
| 11 | 2005–2006: Not Used |
| 2007–2008: Air Compressor | |
| 2010: Not Used | |
| 12 | Transfer Case Control Module (TCCM) |
| 13 | 2005–2008: Radio, HVAC Display (A/C) |
| 2010: Radio | |
| 14 | Body Control Module (BCM) |
| 15 | Rear Wiper Motor |
| 16 | Rear Washer Pump Switch |
| 17 | 2005–2006: Reserved 2 |
| 2007–2008: Secondary Air Injection (AIR) Solenoid | |
| 2010: Secondary Air Injection (AIR) Pump Relay / Transmission Control Module (TCM) (V8 only) | |
| 18 | 2005–2008: Reserved 6 |
| 2010: Rearview Camera | |
| 19 | Instrument Panel Cluster (IPC) |
| 20 | Hazard Warning Lamps, Rear Turn Signal Lamps |
| 21 | Powertrain Control Module (PCM 1) |
| 22 | EVAP Purge Solenoid, Mass Air Flow (MAF) Sensor |
| 23 | Fuel Injectors |
| 24 | Fog Lamps |
| 25 | Powertrain Control Module (PCM B) |
| 26 | 2005–2007: Reserved 4 |
| 2008–2010: Transmission Control Module (TCM) | |
| 27 | Supplemental Inflatable Restraint (Airbag) System |
| 28 | 2005–2008: Backup Lamps |
| 2010: Not Used | |
| 29 | Anti-Lock Brake System (ABS), StabiliTrak |
| 30 | Rear Window Defogger |
| 31 | EVAP Canister Vent Solenoid |
| 32 | 2006: Reserved 5 |
| 2007–2010: Regulated Voltage Control (RVC) VSense+ | |
| 33 | Ignition 1 |
| 34 | Transmission |
| 35 | Cruise Control, Inside Rearview Mirror |
| 36 | Horn |
| 37 | Driver-Side Rear Parking Lamp |
| 38 | Audio Amplifier |
| 39 | 2005–2006: Reserved 7 |
| 2007–2008: Reduced Intensity Low-Beam Daytime Running Lamps | |
| 2010: Daytime Running Lamps (DRL) | |
| 40 | Passenger-Side Headlamp |
| 41 | Driver-Side Headlamp |
| 42 | Trailer Backup Lamps |
| 43 | Front Parking Lamps |
| 44 | 2005–2006: Not Used |
| 2007–2010: Secondary Air Injection (AIR) Solenoid | |
| 45 |
|
| 46 | Electronic Throttle Control (ETC) |
| 47 | Oxygen (O2) Sensors |
| 48 | A/C Clutch |
| 49 | 2005–2008: Passenger-Side Rear Parking Lamp |
| 2010: Rear Parking Lamps | |
| 50 | 2005–2007: XM Satellite Radio |
| 2008: Reserved | |
| 2010: Stop Lamps | |
| 51 |
|
| 52 | StabiliTrak, Anti-Lock Brake System (ABS) |
| 53 | 2005–2008: Heated Seats Switch |
| 2009–2010: Heated Seats & Seat Belt Switch | |
| 54 | 2005–2008: Stop Lamps |
| 2009–2010: Fuel System Control Module (FSCM) | |
| 55 | Trailer Parking Lamps |
| 56 | 2005–2008: Front Turn Signals, Hazard Warning Lamps |
| 2009–2010: Front Turn Signals, Hazard Warning Lamps, Courtesy Mirror | |
| 57 | Sunroof |
| 58 | Transfer Case Control Module (TCCM) Switch |
| 59 | Climate Control Module (HVAC) |
| 60 | 2005–2008: Reserved 8 |
| 2010: Backup Lamps | |
| 61 | Power Seats Module |
| 62 | Secondary Air Injection (AIR) Pump |
| 63 | Passenger-Side Power Window |
| 64 | Anti-Lock Brake System (ABS) / StabiliTrak Motor 2 |
| 67 | Anti-Lock Brake System (ABS) / StabiliTrak Solenoid 1 |
| 68 | Driver-Side Power Window |
| 82 | HVAC Blower Motor |
| 83 | Electronic Trailer Brake Controller |
| 84 | Trailer B+ Battery Feed |
| 85 | Starter Solenoid |
| 91 | Generator / Alternator |