What is O2 sensor heater circuit?
These sensors send that data back to the car’s computer or PCM. In the center of the O2 sensor is a heating element that looks similar to a diesel engine glow plug element. The PCM uses data from the upstream O2 sensor (the one before the converter) to fine-tune the engine’s air-fuel mixture.
What is fault code P0031?
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.
What can cause a P0036 code?
If you’re wondering why your OBD-II sensor is giving you a P0036 code, it could be one of these causes:
- A faulty oxygen sensor.
- A problem with the O2 sensor heater control circuit, such as damaged wires or poor connections.
- An issue with the ECM, such as software in need of an update.
Where is the O2 sensor on a Toyota Camry?
A quick examination of the Camry’s physical wiring harness, as well as the voltage coming from the heated O2 sensor can save you from buying a sensor that you don’t need. Due to the location of the oxygen sensors (under your Camry, on the hot exhaust pipes), the wiring harness around them is easily susceptible to damage.
Where is the O2 sensor on a Toyota p0031?
A P0031 Toyota DTC (diagnostic trouble code) definition:the O2 sensor (oxygen sensor) located on Bank 1 in front of the catalytic converter. There is also an oxygen sensor behind the converter which is Sensor #2. This O2 sensor #1 may also be refered to as an air/fuel ratio sensor since on some vehicles it is.
When to replace O2 sensor on Toyota heater?
On some Toyota vehicles this code is triggered when the resistance of the heater circuit is below 0.8 A. With that said, a common fix for this DTC is to replace the air/fuel (O2 oxygen) sensor #1 on bank 1. Please keep in mind that OEM (original equipment) replacement sensors are recommended (from the dealer).
Where is Bank 1 on a Toyota Camry?
Bank 1 is the side of the engine with cylinder 1. If you have a four cylinder engine or inline six, it’s the only bank. Sensor 1 is upstream of the catalytic converter. When the engine is cold, it has a hard time getting a good reading from the Camry’s oxygen sensors.