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    Fault Codes
    VOLVO
    ECM-P163100
    VOLVO

    ECM-P163100 - Main Relay (power hold). General Failure Information. No sub type information

    System

    Engine Control Module (ECM)

    Volvo models this fault code applies to

    Applies to the following models:

    13 models

    C30 (2007–2013), C70 (2006–2013), S40 (2004–2013), S60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V50 (2004–2013), V60 (2011–), V70 (2008–), XC60 (2009–), XC70 (2008–), XC90 (2003–)

    Show models by year and engine (46)
    • Volvo C30 (2007–2013)2011–2013Engine D5204T, D5204T5 only
    • Volvo C70 (2006–2013)2011Engine D5204T, D5204T5 only
    • Volvo C70 (2006–2013)2012–2013All engines except: B5254T7
    • Volvo S40 (2004–2013)2011–2012Engine D5204T, D5204T5 only
    • Volvo S60 (2011–)2011Engine D5204T2, D5244T10 only
    • Volvo S60 (2011–)2012Engine D5204T3, D5244T11, D5244T15 only
    • Volvo S60 (2011–)2013–2014Engine D5204T3, D5204T7, D5244T11, D5244T15 only
    • Volvo S60 (2011–)2015Engine D5204T3, D5204T7, D5244T11, D5244T15, D5244T23 only
    • Volvo S80 (2007–)2007–2008Engine D5244T4, D5244T5 only
    • Volvo S80 (2007–)2009Engine D5244T10, D5244T4, D5244T5 only
    • Volvo S80 (2007–)2010Engine D4164T, D5244T10, D5244T14, D5244T19 only
    • Volvo S80 (2007–)2011Engine D4164T, D5204T2, D5244T10 only
    • Volvo S80 (2007–)2012Engine D5204T3, D5244T11, D5244T15 only
    • Volvo S80 (2007–)2013–2014Engine D5204T3, D5204T7, D5244T11, D5244T15 only
    • Volvo S80 (2007–)2015Engine D5204T3, D5244T15 only
    • Volvo V40 (2013–)2013–2014Engine D5204T4, D5204T6 only
    • Volvo V40 (2013–)2015Engine D5204T6 only
    • Volvo V40 Cross Country (2013–)2013–2014Engine D5204T4, D5204T6 only
    • Volvo V40 Cross Country (2013–)2015Engine D5204T6 only
    • Volvo V50 (2004–2013)2011–2012Engine D5204T, D5204T5 only
    • Volvo V60 (2011–)2011Engine D5204T2, D5244T10 only
    • Volvo V60 (2011–)2012Engine D5204T3, D5244T11, D5244T15 only
    • Volvo V60 (2011–)2013Engine D5204T3, D5204T7, D5244T11, D5244T15, D5244T17 only
    • Volvo V60 (2011–)2014Engine D5204T3, D5204T7, D5244T11, D5244T12, D5244T15, D5244T17 only
    • Volvo V60 (2011–)2015Engine D5204T3, D5204T7, D5244T11, D5244T12, D5244T15, D5244T17, D5244T23 only
    • Volvo V70 (2008–)2008Engine D5244T4, D5244T5 only
    • Volvo V70 (2008–)2009Engine D5244T10, D5244T4, D5244T5 only
    • Volvo V70 (2008–)2010Engine D4164T, D5244T10, D5244T14, D5244T19 only
    • Volvo V70 (2008–)2011Engine D4164T, D5204T2, D5244T10 only
    • Volvo V70 (2008–)2012Engine D5204T3, D5244T11, D5244T15 only
    • Volvo V70 (2008–)2013Engine D5204T3, D5204T7, D5244T11, D5244T15, D5244T17 only
    • Volvo V70 (2008–)2014–2015Engine D5204T3, D5204T7, D5244T11, D5244T12, D5244T15, D5244T17 only
    • Volvo XC60 (2009–)2009All engines except: B6304T2
    • Volvo XC60 (2009–)2010Engine D5244T10, D5244T14, D5244T16 only
    • Volvo XC60 (2009–)2011Engine D5204T2, D5244T10, D5244T16 only
    • Volvo XC60 (2009–)2012Engine D5204T3, D5244T11, D5244T15, D5244T17 only
    • Volvo XC60 (2009–)2013All engines except: B4204T7, B6304T4, B6324S4, B6324S5
    • Volvo XC60 (2009–)2014Engine D5204T3, D5204T7, D5244T11, D5244T12, D5244T15, D5244T17 only
    • Volvo XC60 (2009–)2015Engine D5204T3, D5204T7, D5244T11, D5244T12, D5244T15, D5244T17, D5244T23 only
    • Volvo XC70 (2008–)2008All engines except: B6324S
    • Volvo XC70 (2008–)2009Engine D5244T4, D5244T5 only
    • Volvo XC70 (2008–)2010Engine D5244T10, D5244T14, D5244T16 only
    • Volvo XC70 (2008–)2011Engine D5204T2, D5244T10, D5244T16 only
    • Volvo XC70 (2008–)2012–2013All engines except: B6304T4, B6324S4, B6324S5
    • Volvo XC70 (2008–)2014–2015Engine D5204T3, D5244T11, D5244T12, D5244T15, D5244T17 only
    • Volvo XC90 (2003–)2013–2014Engine D5244T18, D5244T5 only

    What does this fault code mean?

    The engine control module (ECM) monitors the system relay, which releases the voltage with a set delay after the engine is switched off so that the control module can save ongoing work. The code is set if the relay is slow to release, and also if it releases too early, meaning a signal that is too low.

    Possible causes

    • The signal wire is short-circuited to earth
    • The wiring from the system relay contact is short-circuited to voltage
    • Damaged system relay

    What you can do

    1. 1Check that the fuses are intact. Their locations are given in the owner's manual
    2. 2Check that the connectors to the system relay are firmly seated and clean
    3. 3Use a multimeter to check that the signal wire from the system relay has no contact with earth (the body)
    4. 4Use a multimeter to check that the wire from the system relay contact has no contact with battery positive
    5. 5If the fault code returns: have a workshop replace the system relay

    Symptoms you may notice1

    • No noticeable symptoms for the driver

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

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