Toyota Avalon Fault Codes
You can find common Toyota Avalon 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 Avalon 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 Avalon has any recall notices on our sister site AutoRecalls.co, sorted by model year.View Toyota Avalon Recalls »
Common Avalon Fault Codes
These are the most common Avalon fault codes that people are searching for.
Exhaust Camshaft Position Timing - Over-Retarded (Bank 1)Learn More
System Too Lean (Bank 2)Learn More Fixes
Evaporative Emission Control System Incorrect Purge flowLearn More Fixes
Vehicle Speed Sensor MalfunctionLearn More
Evaporative Emission Control System MalfunctionLearn More Fixes
System Too Lean (Bank 1)Learn More Fixes
Coolant Thermostat (Coolant Temp Below Thermostat Regulating Temperature)Learn More Fixes
Cylinder 1 Misfire DetectedLearn More Fixes
Ignition Coil A Primary/Secondary Circuit MalfunctionLearn More
Ignition Coil E Primary/Secondary Circuit MalfunctionLearn More
Ignition Coil B Primary/Secondary Circuit MalfunctionLearn More
Knock Sensor 2 Circuit (Bank 2)Learn More
Random/Multiple Cylinder Misfire DetectedLearn More Fixes
Heated Oxygen Sensor (HO2S) Heater Circuit Low Voltage Bank 1 Sensor 1Learn More Fixes
Catalyst System Efficiency Below Threshold (Bank 1)Learn More Fixes
Intake Camshaft Position Timing - Over-Advanced (Bank 1)Learn More Fixes
Evaporative Emission Control System Leak DetectedLearn More Fixes
O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)Learn More Fixes
Catalyst System Efficiency Below Threshold (Bank 2)Learn More Fixes
Evaporative Emissions System Small Leak DetectedLearn More Fixes
Ignition Coil D Primary/Secondary Circuit MalfunctionLearn More
O2 Sensor Heater Circuit Malfunction (Bank 2 Sensor 1)Learn More
Shift Solenoid E ElectricalLearn More
Ignition Coil F Primary/Secondary Circuit MalfunctionLearn More
Knock Sensor 1 Circuit (Bank 2 or Single Sensor)Learn More Fixes
Evaporative Emission Control System Vent Control Circuit MalfunctionLearn More Fixes
Heated oxygen sensors (H02S) 1 (upstream), bank 1Learn More
Not in P or N During KOEO / KOERLearn More
Air/Fuel Sensor Circuit Range/Performance. (Bank 1 Sensor 2)Learn More
VVT System.Learn More
Code Word UnregesteredLearn More
Ignition Coil C Primary Circuit MalfunctionLearn More
Knock Control CPU.Learn More
Air/Fuel Sensor Heater Circuit Response. (Bank 1 Sensor 1)Learn More
Seat Driver Recline Forward Circuit Short To GroundLearn More
Air/Fuel Sensor Heater Circuit. (Bank 1 Sensor 2)Learn More
Persistent MisfireLearn More
Engine Coolant Temperature Circuit High InputLearn More
System Gross Leak Evaporative EmissionLearn 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
Transmission control module (TCM) – EEPROM malfunctionLearn More
Fuel System Leak Detected - Large LeakLearn More Fixes
Heated Oxygen Sensor (HO2S) Heater Circuit Low Voltage Bank 1 Sensor 2Learn More
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
Input/Turbine Speed Sensor Circuit No SignalLearn More
ECM/PCM Processor FaultLearn More Fixes
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
- Manufacturer: Toyota
About the Avalon
The Avalon was first released in 1994 as the Japanese manufacturer’s flagship sedan for the American market. Since its release, there have been five generations to hit the market. The fifth generation made its debut in 2018.
Despite being sold primarily in North America, the model was discontinued in the United States in 2022. Other countries in which it is sold are Canada, China, South Korea, and various places in the Middle East.
Competition for the Avalon has typically come from American rivals. The most notable of these include the Chrysler 300 and Dodge Charger. In addition to these, the Nissan Maxima and Lexus ES are also competitors.
Despite Toyota being known for reliability, the model does suffer a few common fault codes. The most commonly searched of these is P0015, which indicates the exhaust camshaft is too far behind in timing.
This can be a fairly serious code. Owners have reported that a stuck oil control solenoid is one of the most likely causes of the issue.
Another fairly common issue is P0174, which indicates that the second bank of the engine is running too lean. Because this code relates to the second bank, only a limited number of Avalons that were fitted with V6 engines can be susceptible to it.
In some cases, a faulty oxygen sensor can be the culprit. Another fairly common cause is a dirty or defective MAF sensor.
Another fairly common issue is shown by fault code P0441, which represents an issue with the evaporative emissions control (EVAP) system purge flow. Like a number of Toyota models, a faulty purge control valve is one of the most likely causes of this issue. Another simple fix owners have found is replacing the fuel cap.