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On this page you can find the meaning of the fault code you may be seeing coming from your Toyota.

Either choose your model from below or scroll down even further to search and see popular fault codes across all Toyotas.

Toyota Models

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

3/10

Error Icon P0441

Evaporative Emission Control System Incorrect Purge flow

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7/10

Error Icon P0171

System Too Lean (Bank 1)

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4/10

Error Icon P0455

System Gross Leak Evaporative Emission

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Error Icon C1241

ABS Hydraulic Pressure Differential Switch Input Short Circuit To Ground

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8/10

Error Icon P0304

Cylinder 4 Misfire Detected

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Error Icon B1421

Passenger Power Window Motor Circuit Short To Ground

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8/10

Error Icon P0607

Control Module Performance

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Error Icon B1801

Lamp Turn Signal Front Output Circuit Short To Ground

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Error Icon B1826

Wiper Rear High Limit Input Circuit Failure

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Error Icon B1821

Wiper Rear Motor Up Relay Coil Circuit Short To Ground

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Error Icon B1811

Lamp Backup Switch Input Circuit Open

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Error Icon B1800

Lamp Turn Signal Front Output Circuit Short To Battery

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Error Icon C1249

ABS Outlet Valve Coil RR Circuit Short To Ground

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Error Icon C1246

ABS Outlet Valve Coil RR Circuit Failure

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Error Icon C1201

ABS Inlet Valve Coil LF Circuit Short To Ground

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Error Icon C1433

Damper LR Circuit Failure

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Error Icon C1203

ABS Outlet Valve Coil Rear Circuit Open

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8/10

Error Icon C1223

Lamp Brake Warning Output Circuit Failure

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Error Icon P1604

Code Word Unregestered

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Error Icon P0741

Torque Converter Clutch Circuit Performance or Stuck Off

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3/10

Error Icon P0456

Evaporative Emissions System Small Leak Detected

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Error Icon P0015

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

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Error Icon P1603

Transmission control module (TCM) – EEPROM malfunction

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7/10

Error Icon P0420

Catalyst System Efficiency Below Threshold (Bank 1)

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9/10

Error Icon P0093

Fuel System Leak Detected - Large Leak

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Error Icon P0037

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

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9/10

Error Icon P0300

Random/Multiple Cylinder Misfire Detected

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7/10

Error Icon P0430

Catalyst System Efficiency Below Threshold (Bank 2)

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Error Icon P0120

Throttle Pedal Position Sensor/Switch A Circuit Malfunction

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8/10

Error Icon P0340

Camshaft Position Sensor Circuit Malfunction

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8/10

Error Icon P0335

Crankshaft Position Sensor A Circuit Malfunction

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Error Icon C1280

Yaw Rate Sensor Signal Fault

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Error Icon P0717

Input/Turbine Speed Sensor Circuit No Signal

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8/10

Error Icon P0606

ECM/PCM Processor Fault

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4/10

Error Icon P0031

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

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Error Icon P1135

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

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Error Icon P0155

O2 Sensor Heater Circuit Malfunction (Bank 2 Sensor 1)

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8/10

Error Icon P0016

Crankshaft Position Camshaft Position Correlation Bank 1 Sensor A

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Error Icon U0129

Lost Communication With Brake System Control Module

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9/10

Error Icon U0100

Lost Communication With ECM/PCM "A"

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8/10

Error Icon U0105

Lost Communication With Fuel Injector Control Module

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9/10

Error Icon U0001

High Speed CAN Communication Bus

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Error Icon U0121

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

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Error Icon U0115

Lost Communication With ECM/PCM "B"

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9/10

Error Icon U0073

Control Module Communication Bus "A" Off

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Error Icon U0126

Lost Communication with Fuel Pump Control Module (FPCM)

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Error Icon U0142

Lost Communication With Body Control Module "B"

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Error Icon U0140

Lost Communication With Body Control Module

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9/10

Error Icon P0011

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

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Error Icon P0418

Secondary Air Injection System Relay A circuit Malfunction

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Error Icon P1605

Knock Control CPU.

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Error Icon P1300

Igniter Circuit Malfunction - No. 1.

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Error Icon P1155

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

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Error Icon P1121

Accelerator Pedal Position Sensor Range/Performance Problem.

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Error Icon P1150

Air/Fuel Sensor Circuit Range/Performance. (Bank 1 Sensor 2)

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Error Icon P1130

Air/Fuel Sensor Circuit Range/Performance. (Bank 1 Sensor 1)

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Error Icon P1349

VVT System.

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Error Icon P1215

Accelerator pedal position (APP) sensor 2 – signal voltage low

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Error Icon P1667

CI Circuit Malfunction

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Error Icon P1346

Fuel Level Sensor B Circuit Malfunction

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Error Icon P1128

Throttle Control Motor Lock.

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Error Icon P1315

Persistent Misfire

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Error Icon P1656

OCV Circuit.

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Error Icon P1127

ETCS Actuator Power Source Circuit.

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7/10

Error Icon P0010

Intake Camshaft Position Actuator Circuit / Open (Bank 1)

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9/10

Error Icon P0012

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

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7/10

Error Icon P0013

Exhaust Camshaft Position Actuator Circuit / Open (Bank 1)

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8/10

Error Icon P0014

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

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8/10

Error Icon P0017

Crankshaft Position Camshaft Position Correlation Bank 1 Sensor B

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4/10

Error Icon P0036

Heated Oxygen Sensor (HO2S) Heater Control Circuit Bank 1 Sensor 2

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4/10

Error Icon P0102

Mass or Volume Air Flow Circuit Low Voltage Input

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8/10

Error Icon P0106

Manifold Absolute Pressure/Barometric Pressure Circuit Range/Performance Problem

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8/10

Error Icon P0113

Intake Air Temperature Circuit High Input

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4/10

Error Icon P0128

Coolant Thermostat (Coolant Temp Below Thermostat Regulating Temperature)

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6/10

Error Icon P0131

O2 Sensor Circuit Low Voltage (Bank 1 Sensor 1)

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7/10

Error Icon P0134

O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 1)

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6/10

Error Icon P0135

O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)

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4/10

Error Icon P0137

O2 Sensor Circuit Low Voltage (Bank 1 Sensor 2)

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6/10

Error Icon P0138

O2 Sensor Circuit High Voltage (Bank 1 Sensor 2)

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6/10

Error Icon P0141

O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 2)

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5/10

Error Icon P0172

System Too Rich (Bank 1)

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5/10

Error Icon P0175

System Too Rich (Bank 2)

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8/10

Error Icon P0301

Cylinder 1 Misfire Detected

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8/10

Error Icon P0302

Cylinder 2 Misfire Detected

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8/10

Error Icon P0303

Cylinder 3 Misfire Detected

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8/10

Error Icon P0305

Cylinder 5 Misfire Detected

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8/10

Error Icon P0306

Cylinder 6 Misfire Detected

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3/10

Error Icon P0325

Knock Sensor 1 Circuit (Bank 2 or Single Sensor)

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8/10

Error Icon P0332

Knock Sensor 2 Circuit Low Input (Bank 2)

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6/10

Error Icon P0341

Camshaft Position Sensor Circuit Range/Performance

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7/10

Error Icon P0401

Exhaust Gas Recirculation Flow Insufficient Detected

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3/10

Error Icon P0442

Evaporative Emission Control System Leak Detected

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3/10

Error Icon P0446

Evaporative Emission Control System Vent Control Circuit Malfunction

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4/10

Error Icon P0449

Evaporative Emission Control System Vent Valve/Solenoid Circuit Malfunction

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5/10

Error Icon P0463

Fuel Level Sensor Circuit High Input

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3/10

Error Icon P0496

Evaporative Emission System High Purge Flow

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3/10

Error Icon P0507

Idle Control System RPM higher Than Expected

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9/10

Error Icon P0700

Transmission Control System Malfunction

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7/10

Error Icon P2096

Post Catalyst Fuel Trim System Too Lean Bank 1

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6/10

Error Icon P2097

Post Catalyst Fuel Trim System Too Rich Bank 1

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9/10

Error Icon P2135

Throttle/Pedal Position Sensor/Switch A / B Voltage Correlation

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9/10

Error Icon P2138

Throttle/Pedal Position Sensor/Switch D/E Voltage Correlation

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7/10

Error Icon P219A

Bank 1 Air/Fuel Ratio Imbalance

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Toyota Logo

Toyota is the largest automaker in the world, producing more cars than any other single company.

They also operate a luxury brand called Lexus that market various versions of its own lines but with premium features and increased levels of luxury.

You may find that the common Toyota fault codes are also found more often in Lexus models too.

Common fault codes on Toyotas include the P0441 which signifies that the system that manages the evaporation of gasoline and its vapors from the fuel tank. Several sensors and valves work to manage this and by seeing the P0441 error your Toyota believes that this system is not working as intended. The fault code could be triggered by a leak, a blocked hose or even a faulty sensor.

Another common fault code on Toyotas is the P0171 – a common fault among many different makes of cars. This error pops up when the engine detects that the fuel/air mixture is too lean (basically too much air is in the mix). The reason this is a problem is that the mix may not fully ignite when in the cylinder and leading to a lack of power and rough running. This could be caused by the flow of air, fuel or both being interrupted by faulty parts, blocked hoses or even sensors elsewhere not doing their jobs.

If you find the C1241 error code appearing on your Toyota when being diagnosed it could be a sign that there is a problem with your battery. More specifically the C1241 error is indicative of a problem with the voltage at the positive side of the battery rather than overall. Checking with a trained technician can tell you if the battery needs replacing through a simple test.

  • Models: 26