P0151 02 Sensor Circuit Low Voltage (Bank 2 Sensor 1)

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P0151 02 Sensor Circuit Low Voltage (Bank 2 Sensor 1)

Technical Description

Oxygen O2 Sensor Circuit Low Voltage (Bank 2, Sensor 1)

What does that mean?

This diagnostic trouble code (DTC) is a generic powertrain code, which means that it applies to OBD-II equipped vehicles. Although generic, the specific repair steps may vary depending on make/model.

Essentially the same as P0136 and P0137 and P0131, a P0151 code refers to 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

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

Causes

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
  • Need help?

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    "Delete Error Code Permanently, Disable DTC Error Code Function for p0151 in the ECU"

    In extreme cases, we even have the option to permanently remove the specific DTC p0151 and disable the function of the specific error code in the ECU. All other fault code functions will then continue to work to protect the engine. This is different from clearing an error code with a diagnostic device. We have the option to permanently remove the function of the specific error code, so that it never comes back. Also emergency running that occurs on the specific error code can be solved in most cases.

    Of course we prefer to first try to solve the cause of the error code, but sometimes the only solution is to permanently disable the DTC function of p0151.

    Make an appointment for permanent removal of p0151