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

Components on diagram:
  • Headlamp Switch
  • Body Control Module
  • Courtesy Lamp Switch
  • Interior Lamp Default Switch
  • 2003 Chevrolet Trailblazer EXT 4.2 L6 GAS Wiring Diagram2003 Chevrolet Trailblazer EXT 4.2 L6 GAS Wiring Diagram

    Components on diagram:
  • Transfer Case Shift Control Module
  • Headlamp Switch
  • Traction Control Switch
  • Body Control Module
  • Traction Active Indicator
  • 2003 Chevrolet Trailblazer EXT 4.2 L6 GAS Wiring Diagram2003 Chevrolet Trailblazer EXT 4.2 L6 GAS Wiring Diagram

    Components on diagram:
  • Horn Relay
  • Body Control Module
  • Horn
  • Horn Assembly
  • Turn Signal/Multifunction Switch
  • 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
  • Front Passenger Door Module
  • Liftgate Module
  • Door Lock Actuator -Front Passenger
  • Door Lock Actuator -Driver
  • 2003 Chevrolet Trailblazer  4.2 L6 GAS Wiring Diagram2003 Chevrolet Trailblazer 4.2 L6 GAS Wiring Diagram

    Components on diagram:
  • Driver Seat
  • Seat Lumbar Vertical Motor -Passenger
  • Seat Lumbar Horizontal Motor -Driver
  • 2003 Chevrolet Trailblazer EXT 5.3 V8 GAS Wiring Diagram2003 Chevrolet Trailblazer EXT 5.3 V8 GAS Wiring Diagram

    Components on diagram:
  • Driver Door Module
  • Front Passenger Door Module
  • Heated Seat Element - Front Passenger Back
  • Heated Seat Thermistor -Driver
  • Heated Seat Thermistor -Front Passenger
  • 2003 Chevrolet Trailblazer EXT 4.2 L6 GAS Wiring Diagram2003 Chevrolet Trailblazer EXT 4.2 L6 GAS Wiring Diagram

    Components on diagram:
  • Inflatable Restraint Sensing And Diagnostic Module
  • Inflatable Restraint Side Impact Sensor -Right
  • Inflatable Restraint Side Impact Sensor -Left
  • 2003 Chevrolet Trailblazer EXT 5.3 V8 GAS Wiring Diagram2003 Chevrolet Trailblazer EXT 5.3 V8 GAS Wiring Diagram

    Components on diagram:
  • Heater/Vent/Air Conditioning Control Module -Auxiliary
  • Blower Motor Switch -Front Auxiliary
  • Blower Motor Control Processor -Auxiliary
  • Mode Actuator -Auxiliary
  • Air Temperature Actuator -Auxiliary
  • 2003 Chevrolet Trailblazer EXT 5.3 V8 GAS Wiring Diagram2003 Chevrolet Trailblazer EXT 5.3 V8 GAS Wiring Diagram

    Components on diagram:
  • 1-2 Shift Solenoid Valve
  • Torque Converter Clutch Solenoid Valve
  • Powertrain Control Module
  • Automatic Transmission
  • Automatic Transmission Fluid Temperature Sensor
  • 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 details about 2002 Chevrolet Trailblazer Grille Assembly2002 Chevrolet Trailblazer Grille Assembly, With emblem provision, chrome center bar, and black grille insert; A high quality, OE replacement complete grille and shell assembly; Backed by 1-year, unlimited-mileage warranty..

    Source: Auto Body Parts Store

    $79.81

    Click here to view more details about 2002 Chevrolet Trailblazer Fan Clutch2002 Chevrolet Trailblazer Fan Clutch, 7.2 in. overall diameter; M30 x 1.5 pilot diameter/thread size; 0.81 in. pilot depth; 1.42 in. flange diameter; 1.87 in. fan mount height; 3.81 in. fan bolt circumference; 3.25 in. fan mount diameter; 5.69 in. overall height; Counterclockwise rotation; Electronic fan thermal design; A high quality, direct fit OE replacement fan clutch; Backed by 1-year, unlimited-mileage warranty..

    Source: Auto Body Parts Store

    $99.99

    Click here to view more details2008 Chevrolet Trailblazer Center Cap, Wheel Center Cap; Fits ALY05322; Chrome; Used, , .

    Source: Wheels / Rims, Mirrors & Lights Store

    $23.50

    Click here to view more details1995 Toyota Pickup L4, 2.4 L, 2366 CC Rebuilt Engine, OHC, RWD, Fuel injected or Carb. Fits 8/84-10/95, Warranty: 3-Year/100,000 Mile, .

    Source: Rebuilt Engines Store

    $1,469.00

    Click here to view more details2002 Chevrolet Trailblazer Used A/C Compressor, 4.2, AUTO, AWD, Very Good.

    Source: Used Auto Parts Store

    $139.00

    Click here to view more details2002 Chevrolet Trailblazer Used A/C Compressor, 4.2, AUTO, RWD, Very Good.

    Source: Used Auto Parts Store

    $139.00
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