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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 5.3 V8 GAS Wiring Diagram2003 Chevrolet Trailblazer EXT 5.3 V8 GAS Wiring Diagram

Components on diagram:
  • Battery
  • Starter Relay
  • Horn Relay
  • Headlamp Relay
  • Fog Lamp Relay
  • 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 EXT 4.2 L6 GAS Wiring Diagram2003 Chevrolet Trailblazer EXT 4.2 L6 GAS Wiring Diagram

    Components on diagram:
  • Turn Signal/Hazard Flasher Module
  • Left Turn Indicator
  • Driver Door Module
  • Park/Turn Signal Lamp -Left Front
  • Outside Rearview Mirror -Driver
  • 2003 Chevrolet Trailblazer EXT 5.3 V8 GAS Wiring Diagram2003 Chevrolet Trailblazer EXT 5.3 V8 GAS Wiring Diagram

    Components on diagram:
  • Turn Signal/Hazard Flasher Module
  • Throttle Actuator Control Module
  • Stop Lamp Switch
  • Powertrain Control Module
  • Center High Mounted Stop Lamp
  • 2003 Chevrolet Trailblazer  4.2 L6 GAS Wiring Diagram2003 Chevrolet Trailblazer 4.2 L6 GAS Wiring Diagram

    Components on diagram:
  • Window Lockout Switch
  • Body Control Module
  • Driver Door Module
  • Window Motor -Left Rear
  • Window Switch -Driver
  • 2003 Chevrolet Trailblazer EXT 4.2 L6 GAS Wiring Diagram2003 Chevrolet Trailblazer EXT 4.2 L6 GAS Wiring Diagram

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

    Components on diagram:
  • Driver Seat
  • Seat Lumbar Vertical Motor -Passenger
  • Seat Lumbar Horizontal Motor -Driver
  • 2003 Chevrolet Trailblazer EXT 4.2 L6 GAS Wiring Diagram2003 Chevrolet Trailblazer EXT 4.2 L6 GAS Wiring Diagram

    Components on diagram:
  • Automatic Transmission Shift Lock Actuator
  • Ignition Lock Cylinder Control Actuator
  • 2003 Chevrolet Trailblazer  4.2 L6 GAS Wiring Diagram2003 Chevrolet Trailblazer 4.2 L6 GAS Wiring Diagram

    Components on diagram:
  • Turn Signal/Hazard Flasher Module
  • Park/Neutral Position
  • 2003 Chevrolet Trailblazer  4.2 L6 GAS Wiring Diagram2003 Chevrolet Trailblazer 4.2 L6 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 details2005 Chevrolet Trailblazer Door Handle, Front, Driver Side, With keyhole; Without keyless entry; A high quality, OE replacement door handle; With 1-year limited Matheny warranty..

    Source: Auto Body Parts Store

    $24.68

    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 details2009 Chevrolet Trailblazer Reflector Rear, Driver Or Passenger Side Rear Bumper Reflector; For Sedan Models; Fits CTS And CTS-V Models, , .

    Source: Wheels / Rims, Mirrors & Lights Store

    $6.45

    Click here to view more details about 1985 Chevrolet C20 Pickup V8, 5.7 L, 350 CID Rebuilt Engine1985 Chevrolet C20 Pickup V8, 5.7 L, 350 CID Rebuilt Engine, Flat lifters, 4-bolt main., Warranty: 3-Year/100,000 Mile, .

    Source: Rebuilt Engines Store

    $1,187.00

    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 details2006 Chevrolet Trailblazer Used Exhaust Manifold, 4.2L, Very Good.

    Source: Used Auto Parts Store

    $155.00
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