What does trouble code P0031 mean?
The P0031 code is a result of the bank 1 HO2S1 (pre catalytic converter heated oxygen sensor) heating element having low voltage. Heated O2 sensors have a seperate heater inside the sensor to get them to operating temperature quickly. If this code is set, the oxygen sensor heater is not working.
Why is my Tacoma check engine light on?
If the check engine light in your Toyota Tacoma starts flashing, that means that the problem needs immediate attention and your Toyota should be brought in suddenly. This blinking light usually indicates a severe engine misfire allowing unburned fuel to be dumped into the exhaust system.
How do you reset the check engine light on a 2003 Toyota Tacoma?
1. Using a Scan Tool
- Connect the scan tool to the onboard diagnostic connector. This is found under the steering column.
- Press the READ button on the scan tool, and look for any error codes.
- Press the ERASE button on the tool to remove the error code. The check engine light will then turn off.
What does p0031 mean on a Toyota Tacoma?
P0031 is a generic code, which means that it has the same meaning for the Toyota Tacoma as it would any other OBDII equipped vehicle. As far as diagnostic trouble codes go, this is a relatively easy one to diagnose. It is usually caused by a bad oxygen sensor, or a wiring issue.
What does it mean when your OBD-II scanner says p0031?
If your OBD-II scanner indicates an error code P0031, this means that you have an issue with your O2 sensor number one. For many vehicles, this is also known as an air/fuel ratio sensor. Here are a few steps to help you our if you’re wondering, “How do I fix trouble code P0031?”
What does the O2 sensor on a Toyota Tacoma mean?
When this heater is not operating, it can affect the way that the engine runs. With P0031, the O2 sensor is informing you that the heater circuit resistance is lower than the normal operating range. This code will often appear with P0171 . It indicates that the Tacoma has a lean condition.
What is the diagnostic code for Toyota Tacoma?
P0031 is a generic code, which means that it has the same meaning for the Toyota Tacoma as it would any other OBDII equipped vehicle. As far as diagnostic trouble codes go, this is a relatively easy one to diagnose.