2003 Toyota Corolla Service and Repair Manual

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Factory-Grade Data

2003 Toyota Corolla 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, torque values, and reference data
  • Electrical diagnostics with full wiring diagrams
  • Coverage across major systems: engine, transmission/driveline, brakes, steering, suspension, HVAC, and more
  • Diagnostic trouble codes and troubleshooting flow
  • Maintenance schedules and fluid capacities

Trims covered

  • CE, Automatic
  • CE, Standard
  • LE, Automatic
  • LE, Standard
  • S, Automatic
  • S, Standard

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
  • Maintenance & Lubrication
  • Specifications
  • Steering
  • Suspension
  • Transmission, Clutch, & Transfer Case
  • Diagnostic Trouble Codes
  • Technical Service Bulletins
  • Wiring Diagrams

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Vehicle Safety Data

2003 Toyota Corolla Recalls & Complaints

NHTSA #13V02900030/01/2013Component: AIR BAGS

Toyota is recalling certain model year 2003-2004 Corolla and Corolla Matrix vehicles and 2003-2004 Pontiac Vibe vehicles. The supplemental restraint system (SRS) circuits are susceptible to internal

Consequence

Inadvertent deployment of the airbags or the seat belt pretensioners may increase the risk of injury

Remedy

Toyota will re-notify their owners who have already had their vehicles repaired with a noise filter,

NHTSA #19V62700028/08/2019Component: AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR MODULE

Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2003-2008 Corolla, 2005-2008 Corolla Matrix, and Pontiac Vibe vehicles equipped with a front passenger air bag assembly replaced

Consequence

An improperly inflated air bag increases the risk of injury during a crash.

Remedy

Toyota will notify their owners. Pontiac Vibe owners will be notified by GM. Dealers will replace

NHTSA #19V74100017/10/2019Component: AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR MODULE

Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2010-2016 4Runner, 2003-2006 Tundra, 2003-2013 Corolla, 2009-2010 Corolla Matrix, 2004-2005 RAV4, 2002-2007 Sequoia, 2011-2013 Si

Consequence

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

Remedy

Toyota will notify owners. Depending on the vehicle model, dealers will replace the front driver in

NHTSA #15V28500013/05/2015Component: AIR BAGS

Toyota Motor Engineering & Manufacturing (Toyota) notified the agency on May 13, 2015 that they are recalling certain model year 2004 Sequoia vehicles manufactured August 18, 2003, to August 19, 2004,

Consequence

In the event of a crash necessitating deployment of the passenger's frontal air bag, the inflator co

Remedy

2003-2004 Corolla and Corolla Matrix vehicles that are recalled under both 15V-043 and 15V-285 are u

NHTSA #15V28600013/05/2015Component: AIR BAGS

Toyota Motor Engineering & Manufacturing (Toyota) notified the agency on May 13, 2015, that they are recalling 2005-2007 Lexus SC, Toyota Corolla, Corolla Matrix, Sequoia, and Pontiac Vibe, and 2005-2

Consequence

In the event of a crash necessitating deployment of the passenger's frontal air bag, the inflator co

Remedy

2003-2004 Corolla and Corolla Matrix vehicles that are recalled under both 15V-043 and 15V-286 are u

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 #18V88300012/12/2018Component: AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR MODULE

Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2002-2005 Lexus SC and Toyota Sequoia, 2003-2005 Toyota Corolla and Tundra, and 2003-2007 Pontiac Vibe vehicles. These vehicles

Consequence

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

Remedy

Toyota will notify the Toyota and Lexus owners. General Motors will notify the Pontiac Vibe owners.

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

TSB #11012744

The condition known as acid rain is caused by airborne chemicals or particles in the atmosphere, which mix with rainwater, nighttime dew, or high humidity to form acidic compounds. If these contaminants settle and remain on a painted vehicl

TSB #11012743

To prevent brake rotor rust from forming during transportation and storage, wheel film will be used instead of a cardboard type of anti-rust cover. The purpose of the wheel film is to shield the disc brake rotor from weather elements and in

TSB #11012742

Acid rain results from rainwater or other airborne moisture that become acidic due to industrial chemical impurities in the atmosphere. If these acidic compounds settle on an exposed vehicle, especially the horizontal areas such as the hood

TSB #11012735

Toyota vehicles are currently protected with RapgardTM protective film designed to protect the horizontal painted surfaces. This material protects from acid rain, environmental fallout, and rail contamination. Follow the Removal Procedure i

TSB #11012727

Vehicles may occasionally be subjected to contamination by airborne iron particles shed from railroad tracks, train wheels, exposure to heavy machinery facilities, grinding, welding, etc. This type of contamination can be identified by the

TSB #11007445

The condition known as acid rain is caused by airborne chemicals or particles in the atmosphere, which mix with rainwater, nighttime dew, or high humidity to form acidic compounds. If these contaminants settle and remain on a painted vehicl

TSB #11007444

To prevent brake rotor rust from forming during transportation and storage, wheel film will be used instead of a cardboard type of anti-rust cover. The purpose of the wheel film is to shield the disc brake rotor from weather elements and in

TSB #11007443

Acid rain results from rainwater or other airborne moisture that become acidic due to industrial chemical impurities in the atmosphere. If these acidic compounds settle on an exposed vehicle, especially the horizontal areas such as the hood

Showing the 8 most recent of 153 technical service bulletins on file with NHTSA.

20140312Component: AIR BAGSCrash reportedFire reported3 injured

RIGHT AFTER THE CAR WAS HIT,THE PASSENGER AIRBAG EXPLODED,BREAKING THE FRONT WINDSHIELD AND HITTING THE DRIVER IN THE HEAD CAUSING A CUT OF 7 STITCHES ,AND CATCHING ON FIRE. AIRBAG NEVER INFLATED. *T

20100414Component: VEHICLE SPEED CONTROLCrash reportedFire reported1 injured

TL* THE CONTACT OWNS A 2003 TOYOTA COROLLA. WHILE DRIVING AT SPEEDS OF 45 MPH, THE CRUISE CONTROL LIGHT ILLUMINATED. SHE WAS UNABLE TO DEACTIVATE THE CRUISE CONTROL SINCE THE RPMS BEGAN INCREASING EXC

20140425Component: VEHICLE SPEED CONTROLCrash reported5 injured

TL* THE CONTACT OWNS A 2003 TOYOTA COROLLA. THE CONTACT STATED THAT WHILE DRIVING 60 MPH, THE CONTACT ATTEMPTED TO DECELERATE BUT THE VEHICLE ERRONEOUSLY ACCELERATED AND CRASHED INTO AN EMBANKMENT. UP

20140425Component: AIR BAGSCrash reported5 injured

TL* THE CONTACT OWNS A 2003 TOYOTA COROLLA. THE CONTACT STATED THAT WHILE DRIVING 60 MPH, THE CONTACT ATTEMPTED TO DECELERATE BUT THE VEHICLE ERRONEOUSLY ACCELERATED AND CRASHED INTO AN EMBANKMENT. UP

20180224Component: AIR BAGSCrash reported3 injured

TAKATA RECALL I HAVE SUBMITTED PAPERS OF NUMEROUS ACCIDENTS AND ALSO ENGINE AND TRANSMISSION FAILURES MY VEHICLE HAS GIVEN ME. WHEN I FIRST OBTAINED IT, IT HAD NO STRUTS NOR DO MY AIR BAGS DEPLOY WHE

Showing the 5 most serious of 859 complaints filed with NHTSA.

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