OBD Code P0151

O2 Sensor Circuit Low Voltage

What’s mean?

OBD2 Code P0151 Definition:
Essentially the same as P0136 and P0137 and P0131, a P0151 code Definition:the first oxygen sensor on Bank 2 . P0151 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 2 Sensor 1 is located in front of the catalytic converter.

Symptoms

Possible sumptoms of P0151
There may be no visible symptoms to the driver, other than the MIL (Check Engine / Service Engine Soon) illumination.

Possible Causes

Possible causes of P0151
A code P0151 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