Toyota Crown Fault Codes
You can find common Toyota Crown 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.
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Toyota Crown 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 Crown has any recall notices on our sister site AutoRecalls.co, sorted by model year.View Toyota Crown Recalls »
Common Crown Fault Codes
These are the most common Crown fault codes that people are searching for.
System Too Rich (Bank 2)Learn More Fixes
Battery Temperature Sensor Circuit HighLearn More
System Too Lean (Bank 2)Learn More Fixes
System Too Lean (Bank 1)Learn More Fixes
System Too Rich (Bank 1)Learn More Fixes
Fuel Rail Pressure Sensor Circuit Range/PerformanceLearn More Fixes
Heated Oxygen Sensor (HO2S) Heater Circuit Low Voltage Bank 2 Sensor 1Learn More
Heated Oxygen Sensor (HO2S) Heater Circuit Low Voltage Bank 1 Sensor 1Learn More Fixes
Crankshaft Position Camshaft Position Correlation Bank 1 Sensor BLearn More Fixes
Control Module PerformanceLearn More Fixes
Cylinder 1 Misfire DetectedLearn More Fixes
Shift Solenoid E ElectricalLearn More
Crankshaft Position Sensor A Circuit MalfunctionLearn More Fixes
Pressure Control Solenoid B Performance or Stuck offLearn More Fixes
Torque Converter Clutch Circuit Performance or Stuck OffLearn More
Evaporative Emission Control System Incorrect Purge flowLearn More Fixes
System Gross Leak Evaporative EmissionLearn More Fixes
Manifold Absolute Pressure/Barometric Pressure Circuit High InputLearn More
Insufficient Coolant Temperature for Closed Loop Fuel ControlLearn More
Accelerator Pedal Position Sensor Circuit.Learn More
Accelerator pedal position (APP) sensor 2 – signal voltage lowLearn More
Code Word UnregesteredLearn More
Transmission control module (TCM) – EEPROM malfunctionLearn More
Heated oxygen sensors (H02S) 1 (upstream), bank 1/2Learn More
CRUISE CONTROL MAIN SWITCH CIRCUIT MALFUNCTIONLearn More
Fuel Pump Control Out Of RangeLearn More Fixes
Engine control module (ECM) – central processor malfunctionLearn More
Throttle position (TP) sensor/mass air flow (MAF) sensor – implausible signalLearn More
PSPS Out Of Self Test RangeLearn More
Magnetic Clutch Circuit.Learn More
Igniter Circuit Malfunction - No. 1.Learn More
Accelerator pedal position (APP) sensor 1 – signal voltage highLearn More
Seat Driver Recline Forward Circuit Short To GroundLearn More
O2 Sensor Heater Circuit Malfunction (Bank 2 Sensor 2)Learn More
ABS Hydraulic Pressure Differential Switch Input Short Circuit To GroundLearn More
Cylinder 4 Misfire DetectedLearn More Fixes
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
Lamp Brake Warning Output Circuit FailureLearn More Fixes
Evaporative Emissions System Small Leak DetectedLearn More Fixes
Exhaust Camshaft Position Timing - Over-Retarded (Bank 1)Learn More
Catalyst System Efficiency Below Threshold (Bank 1)Learn More Fixes
Fuel System Leak Detected - Large LeakLearn More Fixes
Heated Oxygen Sensor (HO2S) Heater Circuit Low Voltage Bank 1 Sensor 2Learn More
Random/Multiple Cylinder Misfire DetectedLearn More Fixes
Catalyst System Efficiency Below Threshold (Bank 2)Learn More Fixes
Throttle Pedal Position Sensor/Switch A Circuit MalfunctionLearn More
Camshaft Position Sensor Circuit MalfunctionLearn More Fixes
Yaw Rate Sensor Signal FaultLearn More
Input/Turbine Speed Sensor Circuit No SignalLearn More
ECM/PCM Processor FaultLearn More Fixes
Air/Fuel Sensor Heater Circuit Response. (Bank 1 Sensor 1)Learn More
O2 Sensor Heater Circuit Malfunction (Bank 2 Sensor 1)Learn More
Crankshaft Position Camshaft Position Correlation Bank 1 Sensor ALearn More Fixes
Lost Communication With Brake System Control ModuleLearn More
Lost Communication With ECM/PCM "A"Learn More Fixes
Lost Communication With Fuel Injector Control ModuleLearn More Fixes
High Speed CAN Communication BusLearn More Fixes
Lost Communication With Anti-Lock Brake System (ABS) Control ModuleLearn More
Lost Communication With ECM/PCM "B"Learn More
Control Module Communication Bus "A" OffLearn More Fixes
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
Intake Camshaft Position Timing - Over-Advanced (Bank 1)Learn More Fixes
Secondary Air Injection System Relay A circuit MalfunctionLearn More
Knock Control CPU.Learn More
- Manufacturer: Toyota
About the Crown
The Crown series was first introduced all the way back in 1955 as the Toyopet Crown. Since that time, there have been a total of 16 generations, far more than most other cars on the roads today. The latest iteration made its debut in 2022.
Interestingly, the model has such prominence in the Toyota lineup that it is one of the few to have its own logo emblazoned on the front and rear fascia. Its crown logo was used to signify the high-end luxury intentions of the model.
The series has seen a huge variety of configurations over the years, but most prominently featured a 4-door luxury sedan layout.
Competition for the model has typically come from the likes of the Nissan Maxima, Lexus GS, and Mercedes C-Class.
One of the most commonly logged fault codes for the model is P0175, which represents a problem with the air-fuel mixture containing too much fuel or not enough air. This code relates specifically to the second bank of the engine, meaning only models from the twelfth generation to the fifteenth generations can have this code logged.
This code can be tricky to solve, usually requiring professional expertise. If there are additional codes logged, they can help pinpoint the cause better.
To make things worse, P0174 is another fairly common code. This code is the inverse of P0175, indicating that the engine is running too lean. Again, this code is for the second bank of the engine, so only a few generations can suffer from it.
Another reportedly common code for the Crown is P0517, which represents a high voltage detected by the battery temperature sensor. In most cases, this simply means the sensor needs to be replaced or that the battery is defective.
However, it is possible for this to result in an overheating condition from the engine. This will almost always be shown by the engine temperature gauge on the dashboard though.