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    Fault Codes
    VOLVO
    DDM-B12C602
    VOLVO

    DDM-B12C602 - Rear Window Lifter Motor Up Relay. General Failure Information. General signal failure

    System

    Driver Door Module (DDM)

    Volvo models this fault code applies to

    Applies to the following models:

    5 models

    S60 (2011–), V40 (2013–), V40 Cross Country (2013–), V60 (2011–), V60 Cross Country (2015–)

    Show models by year and engine (5)
    • Volvo S60 (2011–)2011–2015
    • Volvo V40 (2013–)2013–2015
    • Volvo V40 Cross Country (2013–)2013–2015
    • Volvo V60 (2011–)2011–2015
    • Volvo V60 Cross Country (2015–)2015

    What does this fault code mean?

    The rear door module feeds the window lift in the rear door through a relay. The fault is stored when the relay for raising the window is active although it should be off, which is caused by the relay being stuck. The window may then behave incorrectly.

    Possible causes

    • The relay is stuck in the active position

    What you can do

    1. 1Check that the fuses are intact
    2. 2Read and clear the code, and check whether it returns
    3. 3Test the rear door window up and down with the switch and check whether it moves when nobody is operating it
    4. 4If the fault remains, have a workshop with diagnostic equipment check the relay and the rear door module and fix the fault

    Symptoms you may notice1

    • The window lift does not work, works only partly or works incorrectly

    What the fault can affect1

    • The control module activates the relay for lowering the window

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

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