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

  • 2003 Honda Civic Hybrid 1.3 L4 ELECTRIC/GAS, CC:1339, Fuel Injection
  • 2003 Honda Civic DX 1.7 L4 GAS, CC:1700, Fuel Injection
  • 2003 Honda Civic EX 1.7 L4 GAS, CC:1700, Fuel Injection
  • 2003 Honda Civic HX 1.7 L4 GAS, CC:1700, Fuel Injection
  • 2003 Honda Civic LX 1.7 L4 GAS, CC:1700, Fuel Injection
  • 2003 Honda Civic SI 2.0 L4 GAS, CC:1998, Fuel Injection
  • 2003 Honda Civic GX 1.7 L4 CNG, CC:1700, Fuel Injection

WIRING DIAGRAMS FOR 2003 Honda Civic AUTOMOBILES

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

2003 Honda Civic SI 2.0 L4 GAS Wiring Diagram2003 Honda Civic SI 2.0 L4 GAS Wiring Diagram

Components on diagram:
  • Primary Heated Oxygen Sensor
  • Secondary Heated Oxygen Sensor
  • Throttle Position Sensor
  • Top Dead Center Sensor
  • Manifold Absolute Pressure Sensor
  • 2003 Honda Civic LX 1.7 L4 GAS Wiring Diagram2003 Honda Civic LX 1.7 L4 GAS Wiring Diagram

    Components on diagram:
  • Battery
  • Alternator
  • Powertrain Control Module
  • Engine Control Module
  • ELD Unit
  • 2003 Honda Civic LX 1.7 L4 GAS Wiring Diagram2003 Honda Civic LX 1.7 L4 GAS Wiring Diagram

    Components on diagram:
  • Horn
  • Horn Switch
  • Multiplex Control Unit
  • 2003 Honda Civic GX 1.7 L4 CNG Wiring Diagram2003 Honda Civic GX 1.7 L4 CNG Wiring Diagram

    Components on diagram:
  • Data Link Connector
  • Antilock Brake System Indicator
  • Brake Pedal Position Switch
  • 2003 Honda Civic EX 1.7 L4 GAS Wiring Diagram2003 Honda Civic EX 1.7 L4 GAS Wiring Diagram

    Components on diagram:
  • A/C Compressor Clutch Relay
  • Heater Control Panel
  • A/C Pressure Switch
  • Multiplex Control Unit
  • 2003 Honda Civic EX 1.7 L4 GAS Wiring Diagram2003 Honda Civic EX 1.7 L4 GAS Wiring Diagram

    Components on diagram:
  • Left Rear Door Switch
  • Trunk Light
  • Right Rear Door Switch
  • Driver Door Switch
  • Multiplex Control Unit
  • 2003 Honda Civic GX 1.7 L4 CNG Wiring Diagram2003 Honda Civic GX 1.7 L4 CNG Wiring Diagram

    Components on diagram:
  • Trunk Latch Switch
  • Ceiling Light
  • Spotlight
  • Multiplex Control Unit
  • Ignition Key Switch/Key Light
  • 2003 Honda Civic EX 1.7 L4 GAS Wiring Diagram2003 Honda Civic EX 1.7 L4 GAS Wiring Diagram

    Components on diagram:
  • Moonroof Close Relay
  • Moonroof Open Relay
  • Moonroof Motor
  • Moonroof Limit Switch
  • 2003 Honda Civic HX 1.7 L4 GAS Wiring Diagram2003 Honda Civic HX 1.7 L4 GAS Wiring Diagram

    Components on diagram:
  • Fuel Tank Unit
  • Data Link Connector
  • Fuel Pump
  • PGM-FI Main Relay
  • Parking Brake Switch
  • 2003 Honda Civic Hybrid 1.3 L4 ELECTRIC/GAS Wiring Diagram2003 Honda Civic Hybrid 1.3 L4 ELECTRIC/GAS Wiring Diagram

    Components on diagram:
  • Data Link Connector
  • Transmission Control Module
  • Engine Control Module
  • Under Dash Fuse Relay Box
  • CLICK HERE TO GET FULL ACCESS TO 2003 Honda Civic WIRING DIAGRAMS!

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

    Click here to view more details about 2005 Honda Civic Splash Shield, Front, Driver Side2005 Honda Civic Splash Shield, Front, Driver Side, A high quality, OE replacement splash shield; Backed by 1-year, unlimited-mileage warranty..

    Source: Auto Body Parts Store

    $22.62

    Click here to view more details about 2003 Honda Civic Bumper Cover, Front2003 Honda Civic Bumper Cover, Front.

    Source: Auto Body Parts Store

    $100.72

    Click here to view more details about 2011 Honda Civic Coupe Door Mirror Passenger Side2011 Honda Civic Coupe Door Mirror Passenger Side, Passenger Side Manual Door Mirror; DX DX-G Models, , .

    Source: Wheels / Rims, Mirrors & Lights Store

    $29.45

    Click here to view more details2000 Honda Civic GX L4, 1.6 L, 1590 CC Rebuilt Engine, Warranty: 3-Year/100,000 Mile, .

    Source: Rebuilt Engines Store

    Ad Hoc

    Click here to view more details2012 Honda Civic Used Air Flow Meter/Sensor, 1.8, AUTO, FWD, Very Good.

    Source: Used Auto Parts Store

    $77.00

    Click here to view more details2000 Honda Civic Used A/C Compressor, 1.6, MANUAL, FWD, Very Good.

    Source: Used Auto Parts Store

    $178.00
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