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P0031 Diagnostic Trouble Code Discussion for August 2014

Air Fuel Sensor (Bank 1 Sensor 1) Heater Control Circuit Low Voltage


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Trouble Ticket Help Requests for DTC P0031
Help Request Posted
2003 Toyota Camry SE 2.4L MIL Lamp on VIN: 4T1BE32K63
P0031: Air Fuel Ratio Sensor (Bank 1 Sensor 1) Heater Circuit Low Input. Came in with the p0031 so we checked the heater and it was open. Replaced it with a denso which had around 8 ohms. It flagged the code right away so we checked the heater operation and it worked so relay and fuse are out of our equation. We then decided that t...
August 14, 2014
2004 Toyota Tundra SR5 3.4L MIL Lamp on VIN: 5TBBN441X4
P0031: Air Fuel Sensor (Bank 1 Sensor 1) Heater Circuit Low Input. seeking info on testing both circuits from and to the sensor. What to look for connector connected and disconnected
August 27, 2014
2004 Toyota Tundra SR5 3.4L MIL Lamp on VIN: 5TBBN441X4
P0031: Air Fuel Sensor (Bank 1 Sensor 1) Heater Circuit Low Input. seeking info on testing both circuits from and to the sensor. What to look for connector connected and disconnected
August 28, 2014