Auto Parts Search


      Over 40 million used auto parts online. Shop online for auto and truck parts and save up to 75%

Learn how to repair a car or truck, install or remove parts, wire an engine, reset warning lights, replace fuel filter, fix auto body and more. Get Automotix DIY!
Help me findSearch
Get Full Access Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 2003 Hummer H2 car and truck repair procedures including Hummer engine diagrams, wiring diagrams, repair work estimating measures, technical service bulletins, auto body work guidance, starter & alternator replacement procedures, serpentine belt replacement procedures, radiator & hose replacement procedures, tune-up & drivability specifications, quick lube illustrations, preventive maintenance guide, engine light reset instructions, parts removal and install procedures, fuel filter replacement directions, component location diagrams, air filter locations & replacement instructions, a/c system specifications, and general auto service procedures. You don't have to be a car mechanic or technician to know how to fix your 2003 Hummer H2 automobile. Try the Automotix DIY solution today!
DIY REPAIR SAMPLES > CONTINUE EXPLORING >

WIRING DIAGRAMS FOR 2003 Hummer H2 AUTOMOBILES

OEM drawn wiring diagrams for most 2003 Hummer H2 cars and light trucks sold in the U.S.

2003 Hummer H2  6.0 V8 GAS Wiring Diagram2003 Hummer H2 6.0 V8 GAS Wiring Diagram

Components on diagram:
  • Blower Motor
  • HVAC Control Module
  • Blower Motor Control Processor
  • 2003 Hummer H2  6.0 V8 GAS Wiring Diagram2003 Hummer H2 6.0 V8 GAS Wiring Diagram

    Components on diagram:
  • Ignition Lock Cylinder Control Actuator
  • Floor Shift Assembly
  • 2003 Hummer H2  6.0 V8 GAS Wiring Diagram2003 Hummer H2 6.0 V8 GAS Wiring Diagram

    Components on diagram:
  • Data Link Connector
  • Air Suspension Module
  • Air Suspension Compressor
  • Ride Height Switch
  • 2003 Hummer H2  6.0 V8 GAS Wiring Diagram2003 Hummer H2 6.0 V8 GAS Wiring Diagram

    Components on diagram:
  • Data Link Connector
  • Body Control Module
  • Driver Door Module
  • Ignition Key Alarm Switch
  • Audio Amplifier
  • 2003 Hummer H2  6.0 V8 GAS Wiring Diagram2003 Hummer H2 6.0 V8 GAS Wiring Diagram

    Components on diagram:
  • Turn Signal/Hazard Flasher Module
  • Turn Signal/Multifunction Switch
  • 2003 Hummer H2  6.0 V8 GAS Wiring Diagram2003 Hummer H2 6.0 V8 GAS Wiring Diagram

    Components on diagram:
  • Park/Turn Signal Lamp-LF
  • Park/Turn Signal Lamp-RF
  • 2003 Hummer H2  6.0 V8 GAS Wiring Diagram2003 Hummer H2 6.0 V8 GAS Wiring Diagram

    Components on diagram:
  • Turn Signal/Hazard Flasher Module
  • Center High Mounted Stop Lamp
  • Tail/Stop Lamp-Right
  • Tail/Stop Lamp-Left
  • 2003 Hummer H2  6.0 V8 GAS Wiring Diagram2003 Hummer H2 6.0 V8 GAS Wiring Diagram

    Components on diagram:
  • Body Control Module
  • Park/Neutral Position Switch
  • Backup Lamp-Left
  • Backup Lamp-Right
  • 2003 Hummer H2  6.0 V8 GAS Wiring Diagram2003 Hummer H2 6.0 V8 GAS Wiring Diagram

    Components on diagram:
  • Data Link Connector
  • Throttle Actuator Control Module
  • Powertrain Control Module
  • Turn Signal/Multifunction Switch
  • 2003 Hummer H2  6.0 V8 GAS Wiring Diagram2003 Hummer H2 6.0 V8 GAS Wiring Diagram

    Components on diagram:
  • Data Link Connector
  • Battery Positive Voltage
  • CLICK HERE TO GET FULL ACCESS TO 2003 Hummer H2 WIRING DIAGRAMS!

    Shop online for auto body parts, engines, wheels, lights...

    Click here to view more details about 2007 Hummer H2 Tail Light2007 Hummer H2 Tail Light, Bulbs included; SAE and DOT compliant to FMVSS-108; Features clear, sturdy top lenses for maximum brightness and specialized heat vents to prevent extreme temperature lens damage; Vacuum tested and 3-point inspected before finished to ensure air-tight lenses and quality; No drilling or modification required; Easy installation; With 1-year IPCW limited warranty..

    Source: Auto Body Parts Store

    $303.73

    Click here to view more details2009 Hummer H2 Spark Plug Wire.

    Source: Auto Body Parts Store

    $46.64

    Click here to view more details2009 Hummer H2 Radiator, Radiator; 4.3L; 5.3L; 6.0L; 6.2L; With Transmission Oil Cooler; Without Engine Oil Cooler. 1-1/4IN Thick Core, , .

    Source: Wheels / Rims, Mirrors & Lights Store

    $188.50

    Click here to view more details2005 Hummer H2 V8, 6.0 L, 368 CID Rebuilt Engine, 6.0 V-8 Aluminum Heads, Warranty: 3-Year/100,000 Mile, .

    Source: Rebuilt Engines Store

    $2,099.00

    Click here to view more details2009 Hummer H2 Used CD Changer, AM-FM-stereo-CD changer-MP3 (opt US9), Very Good.

    Source: Used Auto Parts Store

    $198.00

    Click here to view more details2005 Hummer H2 Used Radio / CD Player / GPS, AM-FM-stereo-cass-CD player UB1, Very Good.

    Source: Used Auto Parts Store

    $167.00
    More parts
    Help me findSearch
    Auto Repair Quick Search
    Help me find
    Search DIY repair manuals by VIN...
    Vehicle Identification Number is a unique serial number used by the automotive industry to identify individual motor vehicles

    Find out what info we have for your vehicle

    Get the Complete Technical Service Bulletins!
    Get the Complete Technical Service Bulletins!Access diagrams and repair information such as wiring diagrams, diagnosis and repair charts, manufacturer service bulletins, and OEM Part numbers of your 2003 Hummer H2 vehicle.
    Access the Complete guide!
    Need To Fix Your Car or Truck?
    Save Money With Free Car Insurance Quote
    FREE car insurance quote
    Enter Zip Code:
    GOT A WEBSITE?Make money with Automotix

    Make money with Automotix Partner Program.

    Learn more

    Auto Repair Quick Search
    Help me find