Toyota Sienna Fault Codes
You can find common Toyota Sienna 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 Sienna 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 Sienna has any recall notices on our sister site AutoRecalls.co, sorted by model year.View Toyota Sienna Recalls »
Common Sienna Fault Codes
These are the most common Sienna fault codes that people are searching for.
Catalyst System Efficiency Below Threshold (Bank 2)Learn More Fixes
Exhaust Camshaft Position Timing - Over-Retarded (Bank 1)Learn More
Intake Camshaft Position Timing - Over-Retarded (Bank 1)Learn More Fixes
Catalyst System Efficiency Below Threshold (Bank 1)Learn More Fixes
Evaporative Emission Control System Incorrect Purge flowLearn More Fixes
Ignition Coil B Primary/Secondary Circuit MalfunctionLearn More
System Too Lean (Bank 1)Learn More Fixes
Ignition Coil F Primary/Secondary Circuit MalfunctionLearn More
Heated Oxygen Sensor (HO2S) Heater Circuit Low Voltage Bank 1 Sensor 2Learn More
Vehicle Speed Sensor MalfunctionLearn More
O2 Sensor Circuit High Voltage (Bank 1 Sensor 2)Learn More Fixes
Knock Sensor 1 Circuit High Input (Bank 2 or Single Sensor)Learn More
Fuel Pump Primary Circuit MalfunctionLearn More
Coolant Thermostat (Coolant Temp Below Thermostat Regulating Temperature)Learn More Fixes
Input/Turbine Speed Sensor Circuit No SignalLearn More
O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)Learn More Fixes
Ignition Coil D Primary/Secondary Circuit MalfunctionLearn More
Mass or Volume Air Flow Circuit Low Voltage InputLearn More Fixes
System Too Lean (Bank 2)Learn More Fixes
Heated Oxygen Sensor (HO2S) Heater Circuit Low Voltage Bank 1 Sensor 1Learn More Fixes
Evaporative Emission Control System Leak DetectedLearn More Fixes
Knock Sensor 2 Circuit (Bank 2)Learn More
Camshaft Position Sensor B Circuit High Input (Bank 2)Learn More
Cylinder 1 Misfire DetectedLearn More Fixes
Evaporative Emissions System Small Leak DetectedLearn More Fixes
System Gross Leak Evaporative EmissionLearn More Fixes
Knock Sensor 2 Circuit High Input (Bank 2)Learn More
Knock Sensor 1 Circuit low Input (Bank 2 or Single Sensor)Learn More
Ignition Coil E Primary/Secondary Circuit MalfunctionLearn More
Intermediate Shaft Speed Sensor Circuit No signalLearn More
Pressure Control Solenoid B Performance or Stuck offLearn More Fixes
Air/Fuel Sensor Heater Circuit Response. (Bank 1 Sensor 1)Learn More
Heated oxygen sensors (H02S) 1 (upstream), bank 1Learn More
Air/Fuel Sensor Heater Circuit. (Bank 1 Sensor 2)Learn More
IDM Input Circuit Malfunction/ Ignition Coil Control Circuit High VoltageLearn More
ETC Power Less Than DemandLearn More
Igniter Circuit Malfunction - No. 1.Learn More
Fuel Level Sensor B Circuit MalfunctionLearn More
SGC (Cam Position) Sensor Circuit Malfunction/ Crankshaft Position - Camshaft Position CorrelationLearn More
Code Word UnregesteredLearn More
Transmission control module (TCM) – EEPROM malfunctionLearn More
Air/Fuel Sensor Circuit Range/Performance. (Bank 1 Sensor 2)Learn More
ESO - Engine Shut Off Solenoid FaultLearn More
VVT System.Learn More
Ignition Coil A Primary/Secondary Circuit MalfunctionLearn More
Engine Coolant Temperature Circuit Low InputLearn More
O2 Sensor Heater Circuit Malfunction (Bank 2 Sensor 2)Learn More
Camshaft Position Sensor A Circuit (Bank 2)Learn More
Evaporative Emission Control System Vent Control Circuit MalfunctionLearn More Fixes
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
Control Module PerformanceLearn More Fixes
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
Torque Converter Clutch Circuit Performance or Stuck OffLearn More
Fuel System Leak Detected - Large LeakLearn More Fixes
Random/Multiple Cylinder Misfire DetectedLearn More Fixes
Throttle Pedal Position Sensor/Switch A Circuit MalfunctionLearn More
Camshaft Position Sensor Circuit MalfunctionLearn More Fixes
Crankshaft Position Sensor A Circuit MalfunctionLearn More Fixes
Yaw Rate Sensor Signal FaultLearn More
ECM/PCM Processor FaultLearn More Fixes
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
- Manufacturer: Toyota
About the Sienna
The Sienna first made its debut in 1998. Since then, there have been four generations to hit the markets. The latest of these was released in 2020. The model has also been sold as the Granvia, which was released in China in 2022.
It is sold mostly in the North American market, as well as the East Asian market. Interestingly, it became the only all-wheel drive minivan in the United States between 2006 and 2021.
The main rivals for the model include the Honda Odyssey and Kia Carnival. In America, it also goes up against the Dodge Caravan and Chrysler Pacifica.
One of the most common issues that the Sienna faces is P0430, which indicates that the catalytic converter in the second bank of the exhaust system is not performing properly. This means that only certain models, like those with V6 engines, can be susceptible to this issue.
The most likely causes of this problem are exhaust leaks upstream of the converter or a failing catalytic converter.
Another fairly common code is P0015. This code indicates that the exhaust camshaft is too far behind in terms of timing.
Owners have reported that one of the main causes for this issue is simply neglecting proper maintenance. Old, contaminated oil can result in improper variable valve timing.
While Toyotas are known for their reliability, they are somewhat prone to camshaft timing issues. As a testament to how easily this can be overlooked, another common code for the Sienna is P0012, which is the same issue but for the intake camshaft.
Again, old fuel can be the primary cause of this problem. Another fairly common issue is a worn timing chain.