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Get Full Access Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 2003 Chevrolet Trailblazer car and truck repair procedures including Chevrolet 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 Chevrolet Trailblazer automobile. Try the Automotix DIY solution today!
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We have info for following modifications of 2003 Chevrolet Trailblazer

  • 2003 Chevrolet Trailblazer 4.2 L6 GAS, CID:256, Fuel Injection, Aspiration:256, Engine VIN:, Desg:S
  • 2003 Chevrolet Trailblazer EXT 4.2 L6 GAS, CID:256, Fuel Injection, Aspiration:256, Engine VIN:, Desg:S
  • 2003 Chevrolet Trailblazer EXT 5.3 V8 GAS, CID:325, Fuel Injection, Aspiration:325, Engine VIN:, Desg:P

WIRING DIAGRAMS FOR 2003 Chevrolet Trailblazer AUTOMOBILES

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

2003 Chevrolet Trailblazer  4.2 L6 GAS Wiring Diagram2003 Chevrolet Trailblazer 4.2 L6 GAS Wiring Diagram

Components on diagram:
  • Transfer Case Shift Control Module
  • Data Link Connector
  • Body Control Module
  • Electronic Brake Control Module
  • Powertrain Control Module
  • 2003 Chevrolet Trailblazer  4.2 L6 GAS Wiring Diagram2003 Chevrolet Trailblazer 4.2 L6 GAS Wiring Diagram

    Components on diagram:
  • Body Control Module
  • Windshield Wiper Motor
  • Outside Moisture Sensor
  • Windshield Washer Relay
  • Windshield Washer Fluid Pump
  • 2003 Chevrolet Trailblazer EXT 5.3 V8 GAS Wiring Diagram2003 Chevrolet Trailblazer EXT 5.3 V8 GAS Wiring Diagram

    Components on diagram:
  • Headlamp Switch
  • Body Control Module
  • Headlamp Washer Pump
  • Headlamp Washer Relay
  • Headlamp Washer Switch
  • 2003 Chevrolet Trailblazer EXT 4.2 L6 GAS Wiring Diagram2003 Chevrolet Trailblazer EXT 4.2 L6 GAS Wiring Diagram

    Components on diagram:
  • Body Control Module
  • Rear Window Wiper/Washer Switch
  • Rear Window Wiper Motor
  • Liftgate Module
  • Rear Window Washer Fluid Pump
  • 2003 Chevrolet Trailblazer EXT 5.3 V8 GAS Wiring Diagram2003 Chevrolet Trailblazer EXT 5.3 V8 GAS Wiring Diagram

    Components on diagram:
  • Headlamp Switch
  • Body Control Module
  • Ignition Key Alarm Switch
  • Inflatable Restraint Sensing And Diagnostic Module
  • Front Passenger Door Module
  • 2003 Chevrolet Trailblazer EXT 4.2 L6 GAS Wiring Diagram2003 Chevrolet Trailblazer EXT 4.2 L6 GAS Wiring Diagram

    Components on diagram:
  • Driver Door Module
  • Memory Seat Switch -Driver
  • 2003 Chevrolet Trailblazer EXT 4.2 L6 GAS Wiring Diagram2003 Chevrolet Trailblazer EXT 4.2 L6 GAS Wiring Diagram

    Components on diagram:
  • Seat Recline Motor -Passenger
  • Seat Horizontal Motor -Passenger
  • Seat Rear Vertical Motor -Passenger
  • Memory Seat Module -Passenger
  • Seat Front Vertical Motor -Passenger
  • 2003 Chevrolet Trailblazer EXT 5.3 V8 GAS Wiring Diagram2003 Chevrolet Trailblazer EXT 5.3 V8 GAS Wiring Diagram

    Components on diagram:
  • Retained Accessory Power Relay
  • Body Control Module
  • Quarter Glass Actuator -Right
  • Quarter Glass Actuator -Left
  • Quarter Glass Switch -Left
  • 2003 Chevrolet Trailblazer EXT 4.2 L6 GAS Wiring Diagram2003 Chevrolet Trailblazer EXT 4.2 L6 GAS Wiring Diagram

    Components on diagram:
  • Powertrain Control Module
  • Malfunction Indicator
  • 2003 Chevrolet Trailblazer EXT 5.3 V8 GAS Wiring Diagram2003 Chevrolet Trailblazer EXT 5.3 V8 GAS Wiring Diagram

    Components on diagram:
  • Stop Lamp Switch
  • Electronic Brake Control Module
  • Powertrain Control Module
  • Antilock Brake System Indicator
  • Antilock Brake System Pump
  • CLICK HERE TO GET FULL ACCESS TO 2003 Chevrolet Trailblazer WIRING DIAGRAMS!

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

    Click here to view more details2004 Chevrolet Trailblazer Bumper Cover, Front.

    Source: Auto Body Parts Store

    $90.42

    Click here to view more details about 2002 Chevrolet Trailblazer Bumper Reinforcement, Front2002 Chevrolet Trailblazer Bumper Reinforcement, Front, A high quality, direct fit OE replacement bumper reinforcement; Backed by 1-year, unlimited-mileage warranty..

    Source: Auto Body Parts Store

    $109.36

    Click here to view more details about 2009 Chevrolet Trailblazer 17" x 7" Alloy Wheel2009 Chevrolet Trailblazer 17" x 7" Alloy Wheel, Alloy Wheel; 17 X 7; 50MM Offset; 5 Spokes; 6 Lug; 5 Inch BP; Aftermarket Chrome, , .

    Source: Wheels / Rims, Mirrors & Lights Store

    $245.50

    Click here to view more details about 1995 Dodge Caravan L4, 2.5 L, 2507 CC, 153 CID Rebuilt Engine1995 Dodge Caravan L4, 2.5 L, 2507 CC, 153 CID Rebuilt Engine, FWD, non turbo, roller cam, with balance assembly, (supplied with new head casting)., Warranty: 3-Year/100,000 Mile, .

    Source: Rebuilt Engines Store

    $1,558.00

    Click here to view more details2002 Chevrolet Trailblazer Used Bumper Cover, Rear, 4DR, SIL PADS FADED, Very Good.

    Source: Used Auto Parts Store

    $240.00

    Click here to view more details2002 Chevrolet Trailblazer Used Hood, Black, LS 2D2, 5D1, Average.

    Source: Used Auto Parts Store

    $216.00
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