2003 Honda Civic Service and Repair Manual

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Factory-Grade Data

2003 Honda Civic service and repair manual — a detailed, factory-style reference for maintenance, diagnostics, and repair. Use it to confirm correct procedures, specifications, and system coverage before you start work.

Designed for technicians and DIY owners, this manual helps you diagnose issues correctly, follow proven repair steps, and use wiring diagrams and system sections to track faults faster.

What’s included

  • Step-by-step repair procedures and service information
  • Specifications and reference data (where provided)
  • Electrical diagnostics with wiring diagrams
  • Coverage across major systems: engine, transmission/driveline, brakes, steering, suspension, HVAC, and more

Trims covered

  • Hybrid Sedan 4-Door
  • DX Sedan 4-Door
  • Si Coupe 2-Door
  • EX Sedan 4-Door
  • LX Coupe 2-Door
  • EX Coupe 2-Door
  • DX Coupe 2-Door
  • LX Sedan 4-Door
  • HX Coupe 2-Door
  • Si Hatchback 2-Door
  • GX Sedan 4-Door
  • Si Sedan 4-Door
  • SiR Hatchback 2-Door

Engines covered

  • 1.3L 1339CC l4 FULL HYBRID EV-GAS (FHEV) SOHC Naturally Aspirated
  • 1.7L 1700CC l4 GAS SOHC Naturally Aspirated
  • 2.0L 1998CC 122Cu. In. l4 GAS DOHC Naturally Aspirated
  • 1.7L 1700CC l4 CNG SOHC Naturally Aspirated

Index / Table of contents

  • Body
  • Brakes
  • Chassis Electrical
  • Driveline
  • Engine Cooling
  • Engine Electrical
  • Engine Mechanical
  • Engine Performance & Emission Controls
  • Fuel System
  • General Information & Identification
  • Heating, Ventilation, & Air Conditioning
  • Hybrid & Electric Vehicle Systems
  • Steering
  • Suspension
  • Transmission, Clutch, & Transfer Case
  • Wiring Diagrams

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Vehicle Safety Data

2003 Honda Civic Recalls & Complaints

NHTSA #12V13600030/03/2012Component: EXTERIOR LIGHTING:HEADLIGHTS:SWITCH

HONDA IS RECALLING CERTAIN MODEL YEAR 2002 THROUGH 2004 CR-V; MODEL YEAR 2003 THROUGH 2005 PILOT; AND MODEL YEAR 2002 AND 2003 CIVIC VEHICLES. IN MARCH 2012, HONDA FILED A DEFECT REPORT TO RECALL CER

Consequence

IF THE TERMINAL ENDS MELT WITHIN THE WIRING HARNESS CONNECTOR, THE LOW BEAM HEADLIGHTS MAY BECOME IN

Remedy

HONDA WILL NOTIFY OWNERS, AND DEALERS WILL REPAIR THE LOW BEAM TERMINAL HARNESS OR REPLACE THE LIGHT

NHTSA #19V50100027/06/2019Component: AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR MODULE

Honda (American Honda Motor Co.) is recalling certain 2003-2006 Acura MDX, 2005-2012 RL, 2003-2007 Honda Accord, 2001-2005 Civic, 2003-2005 Civic Hybrid, 2001-2005 Civic GX NGV, 2002-2006 CR-V, 2003-2

Consequence

An inflator explosion may result in sharp metal fragments striking the driver or other occupants res

Remedy

Honda will notify owners, and dealers will replace the passenger frontal airbag inflator, free of ch

NHTSA #19V49900027/06/2019Component: AIR BAGS:FRONTAL:DRIVER SIDE:INFLATOR MODULE

Honda (American Honda Motor Co.) is recalling certain 2003 Acura 3.2CL, 2002-2003 3.2TL, 2003-2006 MDX, 2001-2007 Honda Accord, 2001-2005 Civic, 2003-2005 Civic Hybrid, 2001-2005 Civic GX NGV, 2002-20

Consequence

An inflator explosion may result in sharp metal fragments striking the driver or other occupants res

Remedy

Honda will notify owners, and dealers will replace the driver frontal air bag inflator, free of char

NHTSA #06E02300013/03/2006Component: EXTERIOR LIGHTING:HEADLIGHTS

CERTAIN ANZO COMBINATION HEADLAMP ASSEMBLIES SOLD AS REPLACEMENT LAMPS FOR USE ON CERTAIN PASSENGER VEHICLES. SOME COMBINATION LAMPS ARE NOT EQUIPPED WITH AMBER SIDE REFLECTORS WHICH FAIL TO CONFORM

Consequence

WITHOUT THE AMBER REFLECTORS, THE VEHICLE WILL BE POORLY ILLUMINATED, POSSIBLY RESULTING IN A VEHICL

Remedy

ANZO WILL NOTIFY OWNERS AND REPLACE THE HEADLAMPS FREE OF CHARGE. THE RECALL BEGAN MAY 9, 2006. OW

NHTSA #08E05000011/08/2008Component: EXTERIOR LIGHTING:HEADLIGHTS

K2 MOTOR IS RECALLING 1,921 AFTERMARKET HEADLAMPS OF VARIOUS MODELS SOLD FOR USE ON THE ABOVE LISTED VEHICLES. THESE HEADLAMPS ARE MISSING THE AMBER SIDE REFLEX REFLECTOR WHICH FAILS TO CONFORM WITH

Consequence

WITHOUT THE AMBER SIDE REFLEX REFLECTORS, THE LIGHTING VISIBILITY MAY BE AFFECTED, POSSIBLY RESULTIN

Remedy

K2 MOTOR WILL NOTIFY OWNERS AND OFFER A FULL REFUND. THE RECALL BEGAN ON DECEMEBER 17, 2008. OWNER

NHTSA #09E02500011/05/2009Component: EXTERIOR LIGHTING:HEADLIGHTS

DOPE, INC. IS RECALLING 42,540 COMBINATION CORNER AND BUMPER LAMP ASSEMBLIES OF VARIOUS PART NUMBERS SOLD FOR USE AS AFTERMARKET EQUIPMENT FOR VARIOUS PASSENGER VEHICLES. THESE HEADLAMPS FAIL TO CONF

Consequence

DECREASED LIGHTING VISIBILITY MAY RESULT IN A VEHICLE CRASH.

Remedy

DOPE, INC. WILL NOTIFY OWNERS AND OFFER A FULL REFUND FOR THE NONCOMPLIANT COMBINATION LAMPS. THE S

NHTSA #09E01200007/04/2009Component: EXTERIOR LIGHTING

SABERSPORT IS RECALLING 16,270 COMBINATION CORNER AND BUMPER LAMP ASSEMBLIES OF VARIOUS PART NUMBERS SOLD FOR USE AS AFTERMARKET EQUIPMENT FOR VARIOUS PASSENGER VEHICLES. THESE HEADLAMPS FAIL TO CONF

Consequence

DECREASED LIGHTING VISIBILITY MAY RESULT IN A VEHICLE CRASH.

Remedy

SABERSPORT WILL NOTIFY OWNERS AND OFFER A FULL REFUND FOR THE NONCOMPLIANT COMBINATION LAMPS. THE S

NHTSA #10V36400005/08/2010Component: ELECTRICAL SYSTEM:IGNITION

HONDA IS RECALLING CERTAIN MODEL YEAR 2003 HONDA ACCORD, CIVIC TWO AND FOUR DOOR, AND MODEL YEAR 2003-2004 HONDA ELEMENT VEHICLES. THE INTERLOCK LEVER OF THE IGNITION SWITCH MAY UNEXPECTEDLY DEFORM,

Consequence

REMOVAL OF THE IGNITION KEY WHEN THE GEAR SELECTOR OF A VEHICLE WITH AN AUTOMATIC TRANSMISSION HAS N

Remedy

DEALERS WILL REMOVE THE ORIGINAL INTERLOCK PIN AND LEVER WITHIN THE IGNITION SWITCH, AND REPLACE THE

TSB #10172566

Service Bulletin - This bulletin is a notification of a class action settlement relating to airbag inflators. American Honda is offering a Customer Support Program (Warranty Extension) to cover any manufacturing defects in the replacement f

TSB #10172561

Service Bulletin - This bulletin is a notification of a class action settlement relating to airbag inflators. American Honda is offering a Customer Support Program (Warranty Extension) to cover any manufacturing defects in the replacement d

TSB #10142648

Dealer message - On November 5, 2013, American Honda announced a passenger airbag collection activity for a small number of 2005 Civic vehicles. This activity involves inspecting and potentially replacing the driver?s airbag inflator assemb

TSB #10142652

Service bulletin - American Honda is conducting a study of driver airbag inflators from selected vehicles. With customer?s consent, remove the airbag module, inspect the inflator and, if the customer has a Takata inflator, replace the airba

TSB #10139567

Service bulletin - This bulletin is a notification of a class action settlement relating to airbag inflators. American Honda is offering a Customer Support Program (Warranty Extension) to cover any manufacturing defects to the replacement d

TSB #10139569

Service bulletin - This bulletin is a notification of a class action settlement relating to airbag inflators. American Honda is offering a Customer Support Program (Warranty Extension) to cover any manufacturing defects to the replacement f

TSB #10129461

Dealer message - On April 8, 2014, the 2003-05 Civic SRS healthy parts call-in activity will be expired. A sufficient number of parts have been collected for analysis, and no additional collection is necessary at this time. All VIN inquiry

TSB #10129452

Dealer message - American Honda (AHM) is investigating certain 2001-2005 Civics with fuel pump issues that require the fuel pump to be replaced. To fully understand the cause of the issue, AHM would like to collect the fuel pump from the ve

Showing the 8 most recent of 310 technical service bulletins on file with NHTSA.

20070208Component: ELECTRICAL SYSTEM:ALTERNATOR/GENERATOR/REGULATORCrash reportedFire reported2 injured12 fatalities

THE CAR FLIPPED. *NM

20060820Component: ENGINE AND ENGINE COOLING:ENGINE:GASOLINECrash reportedFire reported1 injured

1- 2003 HONDA CIVIC 4 DOOR,17000 MILES, UNEXPLAINED SPINNING, CRASH, AND SUBSEQUENT FIRE BURNED CAR TO A CRISP. DRIVER PULLED FROM CAR SUFFERING SHOCK AND INHALATION OF FUMES. *NM

20110114Component: ENGINE AND ENGINE COOLINGCrash reportedFire reported

CAR WAS IN A FRONTAL COLLISION. THE BACKSEAT OF THE 2003 HONDA CIVIC CAUGHT FIRE UPON THE FRONT IMPACT. THE FIRE DEPARTMENT COULD NOT DETECT WHY OR HOW THE FIRE STARTED. *TR

20110114Component: EQUIPMENTCrash reportedFire reported

CAR WAS IN A FRONTAL COLLISION. THE BACKSEAT OF THE 2003 HONDA CIVIC CAUGHT FIRE UPON THE FRONT IMPACT. THE FIRE DEPARTMENT COULD NOT DETECT WHY OR HOW THE FIRE STARTED. *TR

20180523Component: AIR BAGSCrash reported5 injured

TAKATA RECALL PREVIOUS COMPLAINT IN FEB. 2018, AND NO ACTION TAKEN, COMPLAINT # 11079970, AIR BAG RECALL, RESULTING IN NO ACTION TAKEN FROM HONDA, HEAD-ON ACCIDENT OCCURRED, AND AIR-BAGS SHOULD'VE DE

Showing the 5 most serious of 619 complaints filed with NHTSA.

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