2004 GMC Sierra 2500 HD Wiring Diagrams (ONLINE REPAIR MANUALS)

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Get Full Access Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 2004 GMC Sierra 2500 HD car and truck repair procedures including GMC 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 2004 GMC Sierra 2500 HD automobile. Try the Automotix DIY solution today!
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We have info for following modifications of 2004 GMC Sierra 2500 HD

  • 2004 GMC Sierra 2500 HD 6.0 V8 GAS, CID:364, Fuel Injection, Aspiration:364, Engine VIN:, Desg:U
  • 2004 GMC Sierra 2500 HD 6.6 V8 DIESEL, CID:400, Fuel Injection, Aspiration:400, Engine VIN:, Desg:1
  • 2004 GMC Sierra 2500 HD 8.1 V8 GAS, CID:496, Fuel Injection, Aspiration:496, Engine VIN:, Desg:G
  • 2004 GMC Sierra 2500 HD 6.6 V8 DIESEL, CID:403, Fuel Injection, Aspiration:403, Engine VIN:, Desg:2

WIRING DIAGRAMS FOR 2004 GMC Sierra 2500 HD AUTOMOBILES

OEM drawn wiring diagrams for most 2004 GMC Sierra 2500 HD cars and light trucks sold in the U.S.

2004 GMC Sierra 2500 HD  6.6 V8 DIESEL Wiring Diagram2004 GMC Sierra 2500 HD 6.6 V8 DIESEL Wiring Diagram

Components on diagram:
  • Body Control Module
  • Door Lock Switch Driver
  • Door Lock Switch Front Passenger
  • 2004 GMC Sierra 2500 HD  6.6 V8 DIESEL Wiring Diagram2004 GMC Sierra 2500 HD 6.6 V8 DIESEL Wiring Diagram

    Components on diagram:
  • Headlamp Switch
  • Body Control Module
  • 2004 GMC Sierra 2500 HD  6.6 V8 DIESEL Wiring Diagram2004 GMC Sierra 2500 HD 6.6 V8 DIESEL Wiring Diagram

    Components on diagram:
  • Clearance Lamp RR
  • Clearance Lamp RF
  • License Lamp Right
  • 2004 GMC Sierra 2500 HD  6.0 V8 GAS Wiring Diagram2004 GMC Sierra 2500 HD 6.0 V8 GAS Wiring Diagram

    Components on diagram:
  • Body Control Module
  • Door Latch Assembly RR
  • Door Latch Assembly LR
  • Door Latch Assembly Driver
  • Door Latch Assembly Front Passenger
  • 2004 GMC Sierra 2500 HD  6.0 V8 GAS Wiring Diagram2004 GMC Sierra 2500 HD 6.0 V8 GAS Wiring Diagram

    Components on diagram:
  • Seat Adjuster Switch Driver
  • Seat Rear Vertical Motor Driver
  • Seat Horizontal Motor Driver
  • Seat Front Vertical Motor Driver
  • 2004 GMC Sierra 2500 HD  6.6 V8 DIESEL Wiring Diagram2004 GMC Sierra 2500 HD 6.6 V8 DIESEL Wiring Diagram

    Components on diagram:
  • Auxiliary Battery Relay
  • Battery Left
  • Battery Right
  • Wrecker Lighting Relay
  • Rear Wheel Steering Control Module
  • 2004 GMC Sierra 2500 HD  6.6 V8 DIESEL Wiring Diagram2004 GMC Sierra 2500 HD 6.6 V8 DIESEL Wiring Diagram

    Components on diagram:
  • Radio
  • Audio Amplifier
  • 2004 GMC Sierra 2500 HD  6.6 V8 DIESEL Wiring Diagram2004 GMC Sierra 2500 HD 6.6 V8 DIESEL Wiring Diagram

    Components on diagram:
  • Radio
  • Audio Amplifier
  • Rear Seat Audio Controller
  • 2004 GMC Sierra 2500 HD  8.1 V8 GAS Wiring Diagram2004 GMC Sierra 2500 HD 8.1 V8 GAS Wiring Diagram

    Components on diagram:
  • Garage Door Opener
  • 2004 GMC Sierra 2500 HD  8.1 V8 GAS Wiring Diagram2004 GMC Sierra 2500 HD 8.1 V8 GAS Wiring Diagram

    Components on diagram:
  • Transmission Control Module
  • Powertrain Control Module
  • Engine Control Module
  • Power Take Off Relay
  • Power Take Off Switch
  • CLICK HERE TO GET FULL ACCESS TO 2004 GMC Sierra 2500 HD WIRING DIAGRAMS!

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

    Click here to view more details about 2010 GMC Sierra 2500 HD Bumper Bracket, Front, Driver Side2010 GMC Sierra 2500 HD Bumper Bracket, Front, Driver Side, A high quality, OE replacement bumper bracket; Backed by 1-year, unlimited-mileage warranty..

    Source: Auto Body Parts Store

    $17.36

    Click here to view more details about 2001 GMC Sierra 2500 HD Mirror Glass, Passenger Side2001 GMC Sierra 2500 HD Mirror Glass, Passenger Side, Convex type; With backer plate; A high quality, OE replacement mirror glass; Backed by 2-year Kool Vue limited warranty..

    Source: Auto Body Parts Store

    $22.74

    Click here to view more details1977 GMC Sprint Radiator, Radiator; 1-Row; 20-3/4 X 17 X 1-1/4, , .

    Source: Wheels / Rims, Mirrors & Lights Store

    $141.50

    Click here to view more details2005 GMC Sierra 2500 HD 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 details2008 GMC Sierra 2500 HD Used Parking Lamp, Driver Side, L, Fog/Driving; (bumper mtd), L., Very Good.

    Source: Used Auto Parts Store

    $96.00

    Click here to view more details2004 GMC Sierra 2500 HD Used Hood, TAN, DENALI 1st digit in VIN is a 1 or 2, Good.

    Source: Used Auto Parts Store

    $188.00
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