Toyota Tacoma Fault Codes
You can find common Toyota Tacoma 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.
Search Toyota Tacoma Codes
Do you know the fault code already? Enter it in the box below and hit "Search Codes".
Toyota Tacoma 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 Tacoma has any recall notices on our sister site AutoRecalls.co, sorted by model year.View Toyota Tacoma Recalls »
Common Tacoma Fault Codes
These are the most common Tacoma fault codes that people are searching for.
Catalyst System Efficiency Below Threshold (Bank 1)Learn More Fixes
Evaporative Emission Control System Incorrect Purge flowLearn More Fixes
System Too Lean (Bank 1)Learn More Fixes
Evaporative Emission Control System Vent Control Circuit MalfunctionLearn More Fixes
Random/Multiple Cylinder Misfire DetectedLearn More Fixes
System Gross Leak Evaporative EmissionLearn More Fixes
Evaporative Emissions System Small Leak DetectedLearn More Fixes
Vehicle Speed Sensor MalfunctionLearn More
Knock Sensor 1 Circuit High Input (Bank 2 or Single Sensor)Learn More
Intake Camshaft Position Timing - Over-Advanced (Bank 1)Learn More Fixes
Throttle Pedal Position Sensor/Switch A Circuit MalfunctionLearn More
Camshaft Position Sensor Circuit MalfunctionLearn More Fixes
System Too Lean (Bank 2)Learn More Fixes
Exhaust Gas Recirculation Flow Insufficient DetectedLearn More Fixes
Transmission Range Sensor Circuit Malfunction (PRNDL Input)Learn More Fixes
Knock Sensor 2 Circuit High Input (Bank 2)Learn More
Insufficient Coolant Temperature for Closed Loop Fuel ControlLearn More
Heated Oxygen Sensor (HO2S) Heater Circuit Low Voltage Bank 1 Sensor 1Learn More Fixes
System Too Rich (Bank 1)Learn More Fixes
Cylinder 1 Misfire DetectedLearn More Fixes
Crankshaft Position Sensor A Circuit MalfunctionLearn More Fixes
Catalyst System Efficiency Below Threshold (Bank 2)Learn More Fixes
Exhaust Gas Recirculation Flow Excessive DetectedLearn More
Intake Air Temperature Circuit MalfunctionLearn More Fixes
O2 Sensor Circuit Malfunction (Bank 1 Sensor 2)Learn More
O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)Learn More Fixes
Evaporative Emission Control System MalfunctionLearn More Fixes
Shift Solenoid E MalfunctionLearn More
Cylinder 8 Misfire DetectedLearn More
Fuel Rail/System Pressure - Too LowLearn More Fixes
Air/Fuel Sensor Heater Circuit Response. (Bank 1 Sensor 1)Learn More
Code Word UnregesteredLearn More
Igniter Circuit Malfunction - No. 1.Learn More
Heated oxygen sensors (H02S) 1 (upstream), bank 1Learn More
Lamp Turn Signal Front Output Circuit Short To GroundLearn More
SBDS Interactive CodesLearn More
Air/Fuel Sensor Circuit Response. (Bank 1 Sensor 1)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
Control Module PerformanceLearn More Fixes
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
Exhaust Camshaft Position Timing - Over-Retarded (Bank 1)Learn 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
Yaw Rate Sensor Signal FaultLearn More
Input/Turbine Speed Sensor Circuit No SignalLearn 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
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
Secondary Air Injection System Relay A circuit MalfunctionLearn More
Knock Control CPU.Learn More
Air/Fuel Sensor Heater Circuit. (Bank 1 Sensor 2)Learn More
Throttle position (TP) sensor/mass air flow (MAF) sensor – implausible signalLearn More
- Manufacturer: Toyota
About the Tacoma
The Tacoma is a pickup truck designed and created by the Japanese automaker Toyota.
Throughout its life, the Tacoma has been built as both a compact pickup and a mid-size pickup truck and currently offers two engine variants; a 2.7 liter and a 3.5 liter V6.
With a curb weight ranging between 4,425 to 4,480 lbs, Toyota gave the Tacoma an update in 2020 which they released with Apple CarPlay, Android Auto and Amazon Alexa.
Following safety tests performed by the Insurance Institute for Highway Safety, the Tacoma scored well with ‘Good’ awarded to roof strength, head restraints and front crash prevention.
As a mid-sized pickup, the Tacoma shares its category with vehicles like the Ford Ranger, Jeep Gladiator, the GMC Canyon, Honda Ridgeline and the Chevrolet Colorado.
The Tacoma can show some common fault codes, such as:
- P0420 – Showing a poor catalyst performance, this code shows that the oxygen levels are too low and there should be a number of things to check for such as a damaged exhaust manifold, catalytic converter oil contamination or oxygen wiring damage. Despite this code triggering the check engine light, there will be very little to notice when driving a vehicle with this fault code showing. Its highly recommended that nothing is replaced before going through the diagnostic procedures.
- P0441 – When the ECU finds an issue within the EVAP system, it can mean that the purge valve cannot regulate the fuel vapors. This is not strictly a serious issue and the car can continue to be driven without diminished performance or issues but it is advisable to have a mechanic look into the problem.
- P0171 – There can be a number of root causes that prompts this code, ranging from a weak fuel pump to a faulty oxygen sensor. Drivers may experience several symptoms like loss of power, a misfiring of the engine or generally rough running when the vehicle is idle.