P0151 Ford

Ford P0151 OBD-II Trouble Code Definition:

P0151 HO2S21 Sensor Circuit Low Voltage

P0151 Ford OBD-II Trouble CodeDescription:

OBD Trouble Code P0151
O2 Sensor Circuit Low Voltage
What does the code mean? OBD-ii 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 Sumptoms of OBD code P0151
There may be no visible symptoms to the driver, other than the MIL (Check Engine / Service Engine Soon) illumination.
Causes Causes of the OBD-II code 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
Solutions Replace faulty sensor Repair short, open, or high resistance on o2 signal circuit