Generic OBD Error Code Details for P0131
O2 Sensor Circuit Low Voltage
What does this mean?
OBD Code P0131refers to
Essentially the same as P0136 and P0137, a P0131 code refers to the first oxygen sensor on Bank 1. P0131 means the O2 oxygen sensor's voltage remained low for longer than 2 minutes. This, is interpreted by the ECM as a low voltage condition and sets the MIL. Bank 1 Sensor 1 is located in front of the catalytic converter.
Symptoms
Possible sumptoms of OBD code P0131
There may be no visible symptoms to the driver, other than the MIL (Check Engine / Service Engine Soon) illumination.
Causes
Possible causes of OBD code P0131
A code P0131 may mean that one or more of the following has happened: Faulty o2 oxygen sensor Short to voltage on O2 signal circuit High resistance or open on O2 signal circuit
Possible Solutions
Replace faulty sensor Repair short, open, or high resistance on o2 signal circuit
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