Loading fault codes...

Toyota Corolla Fault Codes


You can find common Toyota Corolla fault codes on this page that when clicked take you to a detailed description.

You can also type in the fault code you are getting below to find a more detailed description.

Search Toyota Corolla Codes

Do you know the fault code already? Enter it in the box below and hit "Search Codes".

Toyota Corolla Recalls

When a car manufacturer detects a problem with a model they put out a recall notice and more often than not offer to fix the problem free of charge.

You can check to see if your Toyota Corolla has any recall notices on our sister site AutoRecalls.co, sorted by model year.

View Toyota Corolla Recalls »
Recall Notice Icon

Error Icon P1603

Transmission control module (TCM) – EEPROM malfunction

Learn More

Error Icon P1300

Igniter Circuit Malfunction - No. 1.

Learn More

Error Icon P1604

Code Word Unregestered

Learn More

Error Icon P1349

VVT System.

Learn More

Error Icon P1605

Knock Control CPU.

Learn More

Error Icon P1656

ECM/TP sensor amplifier – circuit malfunction

Learn More

Error Icon P1251

Throttle motor relay – malfunction

Learn More

Error Icon P1315

Persistent Misfire

Learn More
Severity Icon 7/10

Error Icon P0171

System Too Lean (Bank 1)

Learn More Fixes

Error Icon C1241

ABS Hydraulic Pressure Differential Switch Input Short Circuit To Ground

Learn More
Severity Icon 3/10

Error Icon P0441

Evaporative Emission Control System Incorrect Purge flow

Learn More Fixes
Severity Icon 7/10

Error Icon P219A

Bank 1 Air/Fuel Ratio Imbalance

Learn More Fixes

Error Icon P1126

Magnetic Clutch Circuit.

Learn More

Error Icon P1128

Heated oxygen sensors (H02S) 1 (upstream), bank 1/2

Learn More
Severity Icon 8/10

Error Icon P0113

Intake Air Temperature Circuit High Input

Learn More Fixes

Error Icon P0717

Input/Turbine Speed Sensor Circuit No Signal

Learn More

Error Icon P0015

Exhaust Camshaft Position Timing - Over-Retarded (Bank 1)

Learn More
Severity Icon 4/10

Error Icon P0031

Heated Oxygen Sensor (HO2S) Heater Circuit Low Voltage Bank 1 Sensor 1

Learn More Fixes

Error Icon P1116

Engine coolant temperature (ECT) sensor – signal out of range

Learn More
Severity Icon 6/10

Error Icon P0138

O2 Sensor Circuit High Voltage (Bank 1 Sensor 2)

Learn More Fixes
Severity Icon 8/10

Error Icon P0301

Cylinder 1 Misfire Detected

Learn More Fixes
Severity Icon 8/10

Error Icon P0607

Control Module Performance

Learn More Fixes

Error Icon P0125

Insufficient Coolant Temperature for Closed Loop Fuel Control

Learn More
Severity Icon 7/10

Error Icon P0420

Catalyst System Efficiency Below Threshold (Bank 1)

Learn More Fixes

Error Icon P0741

Torque Converter Clutch Circuit Performance or Stuck Off

Learn More
Severity Icon 4/10

Error Icon P0455

System Gross Leak Evaporative Emission

Learn More Fixes
Severity Icon 3/10

Error Icon P0456

Evaporative Emissions System Small Leak Detected

Learn More Fixes
Severity Icon 7/10

Error Icon P0010

Intake Camshaft Position Actuator Circuit / Open (Bank 1)

Learn More Fixes

Error Icon P0500

Vehicle Speed Sensor Malfunction

Learn More

Error Icon P0770

Shift Solenoid E Malfunction

Learn More
Severity Icon 8/10

Error Icon P0302

Cylinder 2 Misfire Detected

Learn More Fixes
Severity Icon 8/10

Error Icon P0335

Crankshaft Position Sensor A Circuit Malfunction

Learn More Fixes

Error Icon P0505

Idle Control System Malfunction

Learn More
Severity Icon 3/10

Error Icon P0325

Knock Sensor 1 Circuit (Bank 2 or Single Sensor)

Learn More Fixes
Severity Icon 3/10

Error Icon P0442

Evaporative Emission Control System Leak Detected

Learn More Fixes
Severity Icon 8/10

Error Icon P0303

Cylinder 3 Misfire Detected

Learn More Fixes
Severity Icon 8/10

Error Icon P0340

Camshaft Position Sensor Circuit Malfunction

Learn More Fixes
Severity Icon 3/10

Error Icon P0446

Evaporative Emission Control System Vent Control Circuit Malfunction

Learn More Fixes
Severity Icon 3/10

Error Icon P0440

Evaporative Emission Control System Malfunction

Learn More Fixes
Severity Icon 7/10

Error Icon P0401

Exhaust Gas Recirculation Flow Insufficient Detected

Learn More Fixes
Severity Icon 8/10

Error Icon P0304

Cylinder 4 Misfire Detected

Learn More Fixes

Error Icon B1421

Passenger Power Window Motor Circuit Short To Ground

Learn More

Error Icon B1801

Lamp Turn Signal Front Output Circuit Short To Ground

Learn More

Error Icon B1826

Wiper Rear High Limit Input Circuit Failure

Learn More

Error Icon B1821

Wiper Rear Motor Up Relay Coil Circuit Short To Ground

Learn More

Error Icon B1811

Lamp Backup Switch Input Circuit Open

Learn More

Error Icon B1800

Lamp Turn Signal Front Output Circuit Short To Battery

Learn More

Error Icon C1249

ABS Outlet Valve Coil RR Circuit Short To Ground

Learn More

Error Icon C1246

ABS Outlet Valve Coil RR Circuit Failure

Learn More

Error Icon C1201

ABS Inlet Valve Coil LF Circuit Short To Ground

Learn More

Error Icon C1433

Damper LR Circuit Failure

Learn More

Error Icon C1203

ABS Outlet Valve Coil Rear Circuit Open

Learn More
Severity Icon 8/10

Error Icon C1223

Lamp Brake Warning Output Circuit Failure

Learn More Fixes
Severity Icon 9/10

Error Icon P0093

Fuel System Leak Detected - Large Leak

Learn More Fixes

Error Icon P0037

Heated Oxygen Sensor (HO2S) Heater Circuit Low Voltage Bank 1 Sensor 2

Learn More
Severity Icon 9/10

Error Icon P0300

Random/Multiple Cylinder Misfire Detected

Learn More Fixes
Severity Icon 7/10

Error Icon P0430

Catalyst System Efficiency Below Threshold (Bank 2)

Learn More Fixes

Error Icon P0120

Throttle Pedal Position Sensor/Switch A Circuit Malfunction

Learn More

Error Icon C1280

Yaw Rate Sensor Signal Fault

Learn More
Severity Icon 8/10

Error Icon P0606

ECM/PCM Processor Fault

Learn More Fixes

Error Icon P1135

Air/Fuel Sensor Heater Circuit Response. (Bank 1 Sensor 1)

Learn More

Error Icon P0155

O2 Sensor Heater Circuit Malfunction (Bank 2 Sensor 1)

Learn More
Severity Icon 8/10

Error Icon P0016

Crankshaft Position Camshaft Position Correlation Bank 1 Sensor A

Learn More Fixes

Error Icon U0129

Lost Communication With Brake System Control Module

Learn More
Severity Icon 9/10

Error Icon U0100

Lost Communication With ECM/PCM "A"

Learn More Fixes
Severity Icon 8/10

Error Icon U0105

Lost Communication With Fuel Injector Control Module

Learn More Fixes
Severity Icon 9/10

Error Icon U0001

High Speed CAN Communication Bus

Learn More Fixes

Error Icon U0121

Lost Communication With Anti-Lock Brake System (ABS) Control Module

Learn More

Error Icon U0115

Lost Communication With ECM/PCM "B"

Learn More
Severity Icon 9/10

Error Icon U0073

Control Module Communication Bus "A" Off

Learn More Fixes

Error Icon U0126

Lost Communication with Fuel Pump Control Module (FPCM)

Learn More

Error Icon U0142

Lost Communication With Body Control Module "B"

Learn More

Error Icon U0140

Lost Communication With Body Control Module

Learn More
Severity Icon 9/10

Error Icon P0011

Intake Camshaft Position Timing - Over-Advanced (Bank 1)

Learn More Fixes

Error Icon P0418

Secondary Air Injection System Relay A circuit Malfunction

Learn More

Error Icon P1155

Air/Fuel Sensor Heater Circuit. (Bank 1 Sensor 2)

Learn More
Toyota Corolla Image

About the Corolla

Sold by the Toyota Motor Corporation, the first Corolla models were sold in 1966 and quickly became the best-selling car globally just 8 years later.

Throughout its lifetime, the Corolla has always been a popular vehicle, beating even the famous Volkswagen Beetle; in fact, over 50 million units have rolled off production lines during its 12 generations.

Initially a rear-wheel drive, the Corolla evolved to offer front-wheel drive capabilities and four-wheel drive.

The first generations were small family cars with stick wing mirrors and protruding boot.

As of 2018, there are a number of variations of the Corolla and it is almost unrecognizable from the car that sold over fifty years previously. Available as a hatchback, station wagon or sedan, the new Corolla was unveiled at the New York International Auto Show as a much larger vehicle.

Despite being an enormously popular car, it does have its competitors such as the Toyota Prius, Honda Civic, Honda Insight, Mazda 3, Hyundai Elantra, Hyundai Ioniq, Kia Forte or the Nissan Sentra.

A few fault codes that owners of the Corolla experience are:

  • P1603 – Of the existing communication between the engine control module and the transaxle control module, this code signifies miscommunication.
  • P1300 – Upon seeing this code, drivers are advised to stop operating the vehicle immediately and point to a problem with the igniter circuit.
  • P1604 – Drivers will see this code when the care either doesn’t start or is taking a long time to do so.
  • P1349 – The valve timing is not shifting from the existing valve timing state.
  • P1605 – A result of the engine speed dropping after starting the engine.