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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:
  • Body Control Module
  • Powertrain Control Module
  • Taillamp Assembly -Left
  • Taillamp Assembly -Right
  • 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
  • Courtesy Lamp Switch
  • Interior Lamp Default Switch
  • 2003 Chevrolet Trailblazer EXT 5.3 V8 GAS Wiring Diagram2003 Chevrolet Trailblazer EXT 5.3 V8 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 5.3 V8 GAS Wiring Diagram2003 Chevrolet Trailblazer EXT 5.3 V8 GAS Wiring Diagram

    Components on diagram:
  • Ambient Air Temperature Sensor
  • Inside Rearview Mirror
  • 2003 Chevrolet Trailblazer  4.2 L6 GAS Wiring Diagram2003 Chevrolet Trailblazer 4.2 L6 GAS Wiring Diagram

    Components on diagram:
  • Seat Lumbar Horizontal Motor -Driver
  • Seat Lumbar Vertical Motor -Driver
  • Passenger Seat
  • Lumbar Adjuster 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 Lumbar Position Sensor -Passenger
  • Seat Lumbar Vertical Motor -Passenger
  • Seat Lumbar Horizontal Motor -Passenger
  • Memory Seat Module -Passenger
  • Lumbar 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:
  • Cooling Fan
  • Powertrain Control Module
  • Fan Relay
  • Hall Sensor
  • 2003 Chevrolet Trailblazer EXT 4.2 L6 GAS Wiring Diagram2003 Chevrolet Trailblazer EXT 4.2 L6 GAS Wiring Diagram

    Components on diagram:
  • Battery
  • Starter Relay
  • Starter
  • Powertrain Control Module
  • Park/Neutral Position Switch
  • 2003 Chevrolet Trailblazer  4.2 L6 GAS Wiring Diagram2003 Chevrolet Trailblazer 4.2 L6 GAS Wiring Diagram

    Components on diagram:
  • Power Indicator
  • Heater/Vent/Air Conditioning Control Module
  • Heater/Vent/Air Conditioning Control Module -Auxiliary
  • Mode 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 2006 Chevrolet Trailblazer Grille Bracket, Driver Or Passenger Side2006 Chevrolet Trailblazer Grille Bracket, Driver Or Passenger Side, A high quality, direct fit OE replacement grille retainer; Backed by 1-year, unlimited-mileage warranty..

    Source: Auto Body Parts Store

    $3.13

    Click here to view more details2008 Chevrolet Trailblazer Water Pump, A high quality, direct fit OE replacement water pump assembly; With 2 years limited Trustbuilt warranty..

    Source: Auto Body Parts Store

    $57.36

    Click here to view more details about 2007 Chevrolet Trailblazer 18" x 8" Alloy Wheel2007 Chevrolet Trailblazer 18" x 8" Alloy Wheel, Alloy Wheel; 18 X 8; 6 Double Spokes; 6 Lug; 5 Inch BP; All Polished, , .

    Source: Wheels / Rims, Mirrors & Lights Store

    $177.50

    Click here to view more details1997 Isuzu Rodeo L4, 2.6 L, 2559 CC Rebuilt Engine, SOHC, supplied with new head casting., Warranty: 3-Year/100,000 Mile, .

    Source: Rebuilt Engines Store

    $1,781.00

    Click here to view more details2005 Chevrolet Trailblazer Used Bumper Bar, Rear, 4DR, SIL (mdl with welded hitch 2''), Very Good.

    Source: Used Auto Parts Store

    $292.00

    Click here to view more details2002 Chevrolet Trailblazer Used Parking Lamp, Passenger Side, Fog/Driving; (bumper mtd), R., Very Good.

    Source: Used Auto Parts Store

    $62.00
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