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.
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Popular Toyota Fault Codes
These are the most popular Toyota fault codes that people are searching for.
ABS Hydraulic Pressure Differential Switch Input Short Circuit To GroundLearn More
Passenger Power Window Motor Circuit Short To GroundLearn More
Lamp Turn Signal Front Output Circuit Short To GroundLearn More
Wiper Rear High Limit Input Circuit FailureLearn More
Wiper Rear Motor Up Relay Coil Circuit Short To GroundLearn More
Lamp Backup Switch Input Circuit OpenLearn More
Lamp Turn Signal Front Output Circuit Short To BatteryLearn More
ABS Outlet Valve Coil RR Circuit Short To GroundLearn More
ABS Outlet Valve Coil RR Circuit FailureLearn More
ABS Inlet Valve Coil LF Circuit Short To GroundLearn More
Damper LR Circuit FailureLearn More
ABS Outlet Valve Coil Rear Circuit OpenLearn More
Code Word UnregesteredLearn More
Torque Converter Clutch Circuit Performance or Stuck OffLearn More
Exhaust Camshaft Position Timing - Over-Retarded (Bank 1)Learn More
Transmission control module (TCM) – EEPROM malfunctionLearn More
Heated Oxygen Sensor (HO2S) Heater Circuit Low Voltage Bank 1 Sensor 2Learn More
Throttle Pedal Position Sensor/Switch A Circuit MalfunctionLearn More
Yaw Rate Sensor Signal FaultLearn More
Input/Turbine Speed Sensor Circuit No SignalLearn More
Air/Fuel Sensor Heater Circuit Response. (Bank 1 Sensor 1)Learn More
O2 Sensor Heater Circuit Malfunction (Bank 2 Sensor 1)Learn More
Lost Communication With Brake System Control ModuleLearn More
Lost Communication With Anti-Lock Brake System (ABS) Control ModuleLearn More
Lost Communication With ECM/PCM "B"Learn More
Lost Communication with Fuel Pump Control Module (FPCM)Learn More
Lost Communication With Body Control Module "B"Learn More
Lost Communication With Body Control ModuleLearn More
Secondary Air Injection System Relay A circuit MalfunctionLearn More
Knock Control CPU.Learn More
Igniter Circuit Malfunction - No. 1.Learn More
Air/Fuel Sensor Heater Circuit. (Bank 1 Sensor 2)Learn More
Accelerator Pedal Position Sensor Range/Performance Problem.Learn More
Air/Fuel Sensor Circuit Range/Performance. (Bank 1 Sensor 2)Learn More
Air/Fuel Sensor Circuit Range/Performance. (Bank 1 Sensor 1)Learn More
VVT System.Learn More
Accelerator pedal position (APP) sensor 2 – signal voltage lowLearn More
CI Circuit MalfunctionLearn More
Fuel Level Sensor B Circuit MalfunctionLearn More
Throttle Control Motor Lock.Learn More
Persistent MisfireLearn More
OCV Circuit.Learn More
ETCS Actuator Power Source Circuit.Learn More
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