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    Fault Codes
    VOLVO
    ECM-P081B00
    VOLVO

    ECM-P081B00 - Starter Disable Circuit High. General Failure Information. No sub type information

    System

    Engine Control Module (ECM)

    Volvo models this fault code applies to

    Applies to the following models:

    6 models

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

    Show models by year and engine (11)
    • Volvo S60 (2011–)2011Engine B4164T, B4164T3 only
    • Volvo S60 (2011–)2012–2015Engine B4164T, B4164T2, B4164T3 only
    • Volvo S80 (2007–)2011, 2015Engine B4164T only
    • Volvo S80 (2007–)2012–2014Engine B4164T, B4164T2 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 only
    • Volvo V60 (2011–)2012–2015Engine B4164T, B4164T2, B4164T3 only
    • Volvo V70 (2008–)2011Engine B4164T only
    • Volvo V70 (2008–)2012–2015Engine B4164T, B4164T2 only

    What does this fault code mean?

    The code is a general fault on the signal wire of the starter relay, where the voltage is too high. The engine control module sets it when the voltage stays above a set threshold for a set time. It is checked when the engine is started.

    Possible causes

    • Signal wire shorted to voltage
    • Damaged starter relay
    • Damaged control module

    What you can do

    1. 1Check that the fuses are intact. The locations are shown in the instruction manual or on the fuse list
    2. 2Use a multimeter to check that the signal wire has no break and is not shorted to earth or to the battery positive
    3. 3Check that the connectors at the starter relay and in the wiring are firmly seated and free from play, oxidation and contact resistance
    4. 4Check that the starter relay is intact and firmly fitted in its mounting
    5. 5If the fault remains after these checks, have a workshop investigate the engine control module

    Symptoms you may notice1

    • The engine does not start, either always or on some occasions

    What the fault can affect1

    • Only manual starting is possible

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

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    • Denso
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