What is a heater control circuit?
What the P0052 code means. This code is seen when the Engine Control Module (ECM) tries to control the heater control circuit for Bank 2 Sensor 1 and finds high voltage present. The heater is an integral part of sensor function that is used to heat the oxygen sensor to operating temperature until the vehicle warms up.
Is a p0031 code bad?
This trouble code will not prevent your vehicle from running. The most common result(s) are lower fuel economy and poor vehicle operation. However, if left unsolved, this code could increase the likelihood of your vehicle running rough and cause potential damage to other components of your vehicle.
Where is the heater control valve?
The heater control valve allows the flow of coolant through the heater core to be controlled and switched on and off without affecting the operation of the rest of the cooling system. It may be located on the inlet or the outlet port of the heater core and activated by a cable, electronic control, or a vacuum signal.
What does the ho2s code p0031 mean?
P0031 is the code for HO2S Heater Control Circuit Low (Bank 1 Sensor 1) What the P0031 code means P0031 code means for the engine to run correctly, the engine exhaust must have a specific air-fuel ratio of 14.7 to 1 as signaled by the heated oxygen sensors (HO2S) which detect the oxygen content of the vehicle exhaust.
How to fix a p0031 heater control circuit low bank 1 sensor?
To fix a P0031 Toyota DTC code, you’ll need to do a proper diagnosis. To do that, you’ll want to inspect the wiring and connectors leading to the sensor. Also if equipped with a heater relay and fuse, you’ll want to check those as well.
What does the p0031 code on a Toyota heater mean?
The sensor is less effective when the exhaust gas temperature is low, so it includes a heater which is activated to help get better readings from the A/F O2 sensor. Essentially this P0031 Toyota code means that the resistance of the heater circuit is lower than normal.
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?”