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    Fault Codes
    VOLVO
    ECM-P014100
    VOLVO

    ECM-P014100 - O2 Sensor Heater Circuit (Bank 1 Sensor 2). General Failure Information. No sub type information

    System

    Engine Control Module (ECM)

    Volvo models this fault code applies to

    This fault code has different meanings depending on model, model year or engine. Select the meaning that applies to your car.

    Applies to the following models:

    7 models

    S60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V60 (2011–), V70 (2008–), XC60 (2009–)

    Show models by year and engine (20)
    • Volvo S60 (2011–)2011Engine B4164T, B4164T3, B4204T6, B4204T7 only
    • Volvo S60 (2011–)2012–2014Engine B4164T, B4164T2, B4164T3, B4204T7 only
    • Volvo S60 (2011–)2015Engine B4164T, B4164T2, B4164T3 only
    • Volvo S80 (2007–)2010Engine B4204T6 only
    • Volvo S80 (2007–)2011Engine B4164T, B4204T6, B4204T7 only
    • Volvo S80 (2007–)2012–2014Engine B4164T, B4164T2, B4204T6, B4204T7 only
    • Volvo S80 (2007–)2015Engine B4164T only
    • Volvo V40 (2013–)2013Engine B4164T, B4164T3 only
    • Volvo V40 (2013–)2014–2015Engine B4164T, B4164T3, B4164T4 only
    • Volvo V40 Cross Country (2013–)2013–2015Engine B4164T only
    • Volvo V60 (2011–)2011Engine B4164T, B4164T3, B4204T6, B4204T7 only
    • Volvo V60 (2011–)2012–2014Engine B4164T, B4164T2, B4164T3, B4204T7 only
    • Volvo V60 (2011–)2015Engine B4164T, B4164T2, B4164T3 only
    • Volvo V70 (2008–)2010Engine B4204T6 only
    • Volvo V70 (2008–)2011Engine B4164T, B4204T6, B4204T7 only
    • Volvo V70 (2008–)2012–2014Engine B4164T, B4164T2, B4204T7 only
    • Volvo V70 (2008–)2015Engine B4164T, B4164T2 only
    • Volvo XC60 (2009–)2010Engine B4204T6 only
    • Volvo XC60 (2009–)2011–2012Engine B4204T6, B4204T7 only
    • Volvo XC60 (2009–)2013–2015Engine B4204T7 only

    What does this fault code mean?

    The engine control module (ECM) monitors the rear oxygen sensor by checking its signal while driving. The code is set when the signal deviates from its permitted range, or when the sensor's pre-heating voltage disturbs the signal from the sensor. The fault may therefore lie in the sensor's heater.

    Possible causes

    • Damaged rear oxygen sensor

    What you can do

    1. 1Read the code, clear it and road test the car to see whether it comes back
    2. 2Check the connector to the rear sensor for contact resistance and oxidation; do not use rust solvent spray or grease
    3. 3Use a multimeter to check that the wires to the sensor have no open circuit and are not shorted to each other
    4. 4If the connector and wires are intact, replace the rear oxygen sensor

    Symptoms you may notice1

    • Check engine light (MIL) on

    What the fault can affect1

    • Control with the rear oxygen sensor is switched off

    General guidance for car owners. Diagnosis on the car can point to a different cause.

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