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P0031 Diagnostic Trouble Code Discussion for October 2010

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
2004 Jeep Grand Cherokee Limited 4.0L MIL Lamp on VIN: 1J4GW48S54
P0031: Heated Oxygen Sensor (Bank 1 Sensor 1) Heater Circuit Low Voltage. This Jeep has a reoccuring P0031. It came to me with two new upstream 02 sensors. After scoping the circuits I recommended a pcm and new 02 sensor. Customer declined repairs at that time. Two months later they decided to fix it. I don`t remember why I recommen...
October 21, 2010
2004 Jeep Grand Cherokee Limited 4.0L MIL Lamp on VIN: 1J4GW48S54
P0031: Heated Oxygen Sensor (Bank 1 Sensor 1) Heater Circuit Low Voltage. This Jeep has a reoccuring P0031. It came to me with two new upstream 02 sensors. After scoping the circuits I recommended a pcm and new 02 sensor. Customer declined repairs at that time. Two months later they decided to fix it. I don`t remember why I recommen...
October 21, 2010