2003 Honda Accord Service and Repair Manual

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Factory-Grade Data

2003 Honda Accord 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

  • DX Sedan 4-Door
  • EX Sedan 4-Door
  • LX Coupe 2-Door
  • EX Coupe 2-Door
  • LX Sedan 4-Door
  • Coupe Coupe 2-Door

Engines covered

  • 2.4L 2354CC 144Cu. In. l4 GAS DOHC Naturally Aspirated
  • 3.0L 2997CC V6 GAS 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 Accord Recalls & Complaints

NHTSA #17V22000030/03/2017Component: AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR MODULE

Honda (American Honda Motor Co.) is recalling certain 2003 Honda Accord Coupe vehicles, equipped with a four-cylinder engine. If the passenger frontal air bag module has been replaced, such as after

Consequence

An inflator rupture may result in metal fragments striking the driver or other occupants resulting i

Remedy

Honda will notify owners, and dealers will inspect the vehicle and replace any Takata inflator used

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 #12V22200017/05/2012Component: STEERING:HYDRAULIC POWER ASSIST:HOSE, PIPING, AND CONNECTIONS

Honda is recalling certain model year 2007 and 2008 Acura TL and model year 2003-2007 Accord V6 vehicles. In May 2012, Honda filed a defect report to recall certain model year 2007 and 2008 Acura TL

Consequence

If this occurs, power steering fluid can leak onto a hot catalytic converter, leading to smoke and p

Remedy

Honda will notify owners, and dealers will install a new heat resistant power steering hose, free of

NHTSA #07E00400016/01/2007Component: EXTERIOR LIGHTING:HEADLIGHTS

CERTAIN TYC HEADLAMP ASSEMBLIES P/NS 20-6361-00 AND 20-6362-00 SOLD AS AFTERMARKET EQUIPMENT FOR 2003-2006 HONDA ACCORD PASSENGER VEHICLES. THE PHOTMETRIC WERE MISALIGNED WHICH DOES NOT COMPLY WITH F

Consequence

MISALIGNMENT OF THE LIGHTS DEMINISHES FRONTAL ILLUMINATION WHICH COULD RESULT IN A VEHICLE CRASH.

Remedy

GENERA WILL NOTIFY OWNERS AND OFFER TO REPURCHASE THE NONCOMPLIANT LAMPS. THE RECALL BEGAN ON JANUA

NHTSA #04V17600015/04/2004Component: POWER TRAIN:AUTOMATIC TRANSMISSION

ON SOME MINI VANS, SPORT UTILITY AND PASSENGER VEHICLES, CERTAIN OPERATING CONDITIONS CAN RESULT IN HEAT BUILD-UP BETWEEN THE COUNTERSHAFT AND SECONDARY SHAFT SECOND GEARS IN THE AUTOMATIC TRANSMISSIO

Consequence

GEAR FAILURE COULD RESULT IN TRANSMISSION LOCKUP, WHICH COULD RESULT IN A CRASH.

Remedy

ON VEHICLES WITH 15,000 MILES OR LESS, THE DEALER WILL UPDATE THE TRANSMISSION WITH A SIMPLE REVISIO

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 #19E06800010/10/2019Component: VEHICLE SPEED CONTROL:ACCELERATOR PEDAL

Dorman Products, Inc. (Dorman) is recalling certain Accelerator Pedal Assemblies part numbers 699-114 and 825-5029-1, sold as replacement parts for 2003-2006 Acura MDX, 2004-2008 Acura TL and TSX, 20

Consequence

If the accelerator pedal binds, the engine may not quickly return to idle after the pedal is no long

Remedy

Dorman will notify owners, and qualified service facilities will replace the affected accelerator pe

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 #10213538

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 #10194971

Service Bulletin - Case v. American Honda Motor Co., Inc., Case No. BC 424169 (Third Clutch Transmission Settlement - $25 Credit Vouchers).

TSB #10172568

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 #10172564

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 #10165333

This SKU is a Front Upper Ball Joint. The customer communication requested return of unsold inventory to inspect for the outer diameter of the ball joint housing being too small. The outer diameter being too small would prevent the part fro

TSB #10147177

Service bulletin - This bulletin has been cancelled because the collection is now complete. If you did the collection in this Service Bulletin on or before October 26, 2018 (RO date), use the Warranty Claim Information provided below.

TSB #10144032

Service bulletin - Emission certification labels that were replaced on a small number of vehicles may have been replaced with a label listing incorrect information. The affected emission labels are replacement service parts, and were not in

TSB #10144037

Dealer message - Today, American Honda is notifying dealers of a voluntary noncompliance recall for a small number of Honda vehicles due to an error on the replacement (service part) underhood emissions labels. American Honda previously not

Showing the 8 most recent of 382 technical service bulletins on file with NHTSA.

20130619Component: AIR BAGSCrash reportedFire reported

I REAR ENDED THE CAR IN FRONT OF ME WHILE APPLYING THE BRAKES. THE PASSENGER AIRBAG DEPLOYED BUT THE DRIVER'S AIRBAG FAILED TO DEPLOY. THERE WERE NO INJURIES INVOLVED. *TR

20190313Component: AIR BAGSCrash reported7 injured

TAKATA RECALL (POSSIBLY?). I WAS IN A CAR ACCIDENT ON JUNE 21, 2018, IN MY 2003 HONDA ACCORD COUPE DRIVER SIDE AIRBAG DID NOT DEPLOY. I WAS DRIVING ON A CITY STREET, THE ROAD WAS WET, AND I WAS GOING

20030721Component: AIR BAGSCrash reported4 injured

ABS LOCKED UP WHEEL ,LOST CONTROL WHEN CHANGING BACK LANE AT 70 MPH, HIT ROAD GUIDE PLATE AND SLIDED OFF ROAD.AIRBAGS DID NOT COME OUT. *AK

20161022Component: AIR BAGSCrash reported3 injured

THERE WAS A RECALL ON MY AIRBAG INFLATOR'S AND I WENT TO THE DEALERSHIP THEY SAID THAT THEY TOOK CARE OF IT AND THEN A FEW WEEKS LATER I WAS IN A CAR ACCIDENT I WAS HIT IN THE FRONT OF MY CAR AND THE

20150916Component: AIR BAGSCrash reported2 injured

TL* THE CONTACT'S CLIENT OWNED A 2003 HONDA ACCORD. WHILE THE CLIENT WAS DRIVING APPROXIMATELY 50 MPH, ANOTHER VEHICLE CRASHED HEAD ON INTO THE FRONT DRIVER SIDE. THE AIR BAGS FAILED TO DEPLOY. THE CL

Showing the 5 most serious of 2382 complaints filed with NHTSA.

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