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    VOLVO
    BCM-U042841
    VOLVO

    BCM-U042841 - Invalid Data Received From Steering Angle Sensor Module. System Internal Failures. General checksum failure

    System

    Brake Control Module (BCM)

    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–), V60 Cross Country (2015–), V70 (2008–), XC60 (2009–), XC70 (2008–)

    Show models by year and engine (14)
    • Volvo C30 (2007–2013)2011–2013Engine D4162T, 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 D4162T, D5204T, D5204T5 only
    • Volvo S60 (2011–)2011–2015
    • Volvo S80 (2007–)2007–2015
    • Volvo V40 (2013–)2013–2015
    • Volvo V40 Cross Country (2013–)2013–2015
    • Volvo V50 (2004–2013)2011–2012Engine D4162T, D5204T, D5204T5 only
    • Volvo V60 (2011–)2011–2015
    • Volvo V60 Cross Country (2015–)2015
    • Volvo V70 (2008–)2008–2015
    • Volvo XC60 (2009–)2009–2015
    • Volvo XC70 (2008–)2008–2015

    What does this fault code mean?

    The SAS broadcasts steering data on CAN for several brake functions. The BCM checks the data internally; a wrong checksum means the value is not what is expected, and the fault sits in the SAS module.

    Possible causes

    • Fault in the steering angle sensor control module (SAS)

    What you can do

    1. 1Read codes in the steering angle sensor module and troubleshoot them first
    2. 2Do not replace the brake control module for this code, as the fault lies in the steering angle sensor
    3. 3Check that the code does not return after a road test
    4. 4The brake and stability systems are safety-critical, so have a workshop carry out any work on the steering angle sensor and the brake control module

    Symptoms you may notice4

    • Traction and anti-skid warning lamp lit
    • Stability function does not work
    • Traction control does not work
    • Anti-skid function does not work

    What the fault can affect2

    • Stability control and traction control are disabled
    • Dynamic stability control (AYC) is disabled

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

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