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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:
  • 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:
  • Body Control Module
  • Windshield Wiper Motor
  • Outside Moisture Sensor
  • Windshield Washer Relay
  • Windshield Washer Fluid Pump
  • 2003 Chevrolet Trailblazer  4.2 L6 GAS Wiring Diagram2003 Chevrolet Trailblazer 4.2 L6 GAS Wiring Diagram

    Components on diagram:
  • Multifunction Indicator Lamp
  • 2003 Chevrolet Trailblazer  4.2 L6 GAS Wiring Diagram2003 Chevrolet Trailblazer 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 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 5.3 V8 GAS Wiring Diagram2003 Chevrolet Trailblazer EXT 5.3 V8 GAS Wiring Diagram

    Components on diagram:
  • Driver Door Module
  • Memory Seat Module -Driver
  • 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:
  • Liftgate Ajar Switch
  • Liftgate Module
  • 2003 Chevrolet Trailblazer EXT 5.3 V8 GAS Wiring Diagram2003 Chevrolet Trailblazer EXT 5.3 V8 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:
  • Air Conditioning Low Pressure Switch
  • Air Conditioning Relay
  • Air Conditioning Compressor Clutch
  • Air Conditioning Refrigerant Pressure Sensor
  • Heater/Vent/Air Conditioning 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
  • Park/Neutral Position
  • 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 2006 Chevrolet Trailblazer Header Panel2006 Chevrolet Trailblazer Header Panel, A high quality, direct fit OE replacement header panel; Backed by 1-year, unlimited-mileage warranty..

    Source: Auto Body Parts Store

    $57.43

    Click here to view more details about 2008 Chevrolet Trailblazer Oxygen Sensor, Driver Side2008 Chevrolet Trailblazer Oxygen Sensor, Driver Side, A high quality, direct fit OE replacement oxygen sensor; Improves car's engine response and gas mileage; Effectively lowers emissions upon replacing its tired old oxygen sensor; Exceeds OE specifications and test requirements; OE part number 12572705..

    Source: Auto Body Parts Store

    $70.06

    Click here to view more details about 2009 Chevrolet Trailblazer 20" x 8" Alloy Wheel2009 Chevrolet Trailblazer 20" x 8" Alloy Wheel, Alloy Wheel; 20 X 8; 46MM Offset; 6 Spokes; 6 Lug; 5 Inch BP; Polished, , .

    Source: Wheels / Rims, Mirrors & Lights Store

    $278.50

    Click here to view more details1993 Ford F-250 Pickup V8, 5.8 L, 351 CID Rebuilt Engine, Windsor, HO, dipstick in block, Non Roller cam., Warranty: 3-Year/100,000 Mile, .

    Source: Rebuilt Engines Store

    $1,446.00

    Click here to view more details2008 Chevrolet Trailblazer Used Rear View Mirror, Standard, Very Good.

    Source: Used Auto Parts Store

    $68.00

    Click here to view more details2007 Chevrolet Trailblazer Used A/C Compressor, 4.2, AUTO, RWD, Very Good.

    Source: Used Auto Parts Store

    $140.00
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