Skip to content
    OBD Tuning
    Send to us
    Send to us
    Home
    Fault Codes
    VOLVO
    ECM-U010400
    VOLVO

    ECM-U010400 - Lost Communication With Forward Sensing Module (FSM). 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:

    8 models

    S60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V60 (2011–), V70 (2008–), XC60 (2009–), XC70 (2008–)

    Show models by year and engine (35)
    • Volvo S60 (2011–)2011All engines except: B5254T5, D5204T2, D5244T10
    • Volvo S60 (2011–)2012All engines except: B5254T5, D5204T3, D5244T11, D5244T15
    • Volvo S60 (2011–)2013Engine B4164T, B4164T2, B4164T3, B4204T7, B6304T4, D4162T only
    • Volvo S60 (2011–)2014All engines except: B5204T8, B5204T9, B5254T12, B5254T14, D5204T3, D5204T7, D5244T11, D5244T15
    • Volvo S60 (2011–)2015All engines except: B5204T8, B5204T9, B5254T12, B5254T14, D5204T3, D5204T7, D5244T11, D5244T15, D5244T23
    • Volvo S80 (2007–)2010Engine B4204T6, B6304T2, B6324S, B6324S2, B8444S only
    • Volvo S80 (2007–)2011Engine B4164T, B4204T6, B4204T7, B6304T4, B6324S4, B6324S5, B8444S only
    • Volvo S80 (2007–)2012All engines except: B5254T10, D5204T3, D5244T11, D5244T15
    • Volvo S80 (2007–)2013–2014All engines except: B5254T12, B5254T14, D5204T3, D5204T7, D5244T11, D5244T15
    • Volvo S80 (2007–)2015All engines except: D5204T3, D5244T15
    • Volvo V40 (2013–)2013Engine B4164T, B4164T3, D4162T only
    • Volvo V40 (2013–)2014Engine B4164T, B4164T3, B4164T4, D4162T only
    • Volvo V40 (2013–)2015All engines except: B5204T8, B5204T9, D5204T6
    • Volvo V40 Cross Country (2013–)2013–2014Engine B4164T, D4162T only
    • Volvo V40 Cross Country (2013–)2015Engine B4164T, B4204T11, D4162T, D4204T14 only
    • Volvo V60 (2011–)2011All engines except: D5204T2, D5244T10
    • Volvo V60 (2011–)2012All engines except: D5204T3, D5244T11, D5244T15
    • Volvo V60 (2011–)2013Engine B4164T, B4164T2, B4164T3, B4204T7, B6304T4, D4162T only
    • Volvo V60 (2011–)2014All engines except: B5204T8, B5204T9, B5254T12, D5204T3, D5204T7, D5244T11, D5244T12, D5244T15, D5244T17, D82PHEV
    • Volvo V60 (2011–)2015All engines except: B5204T9, B5254T12, D5204T3, D5204T7, D5244T11, D5244T12, D5244T15, D5244T17, D5244T23, D82PHEV, D87PHEV
    • Volvo V70 (2008–)2010Engine B4204T6, B6304T2, B6324S, B6324S2 only
    • Volvo V70 (2008–)2011Engine B4164T, B4204T6, B4204T7, B6304T4, B6324S5 only
    • Volvo V70 (2008–)2012All engines except: B5254T10, D5204T3, D5244T11, D5244T15
    • Volvo V70 (2008–)2013Engine B4164T, B4164T2, B4204T7, B6304T4, B6324S5, D4162T only
    • Volvo V70 (2008–)2014All engines except: B5204T9, D5204T3, D5204T7, D5244T11, D5244T12, D5244T15, D5244T17
    • Volvo V70 (2008–)2015Engine B4164T, B4164T2, B4204T11, B6304T4, D4162T, D4204T5 only
    • Volvo XC60 (2009–)2010All engines except: D5244T10, D5244T14, D5244T16
    • Volvo XC60 (2009–)2011All engines except: D5204T2, D5244T10, D5244T16
    • Volvo XC60 (2009–)2012All engines except: D5204T3, D5244T11, D5244T15, D5244T17
    • Volvo XC60 (2009–)2013Engine B4204T7, B6304T4, B6324S4, B6324S5 only
    • Volvo XC60 (2009–)2014All engines except: D5204T3, D5204T7, D5244T11, D5244T12, D5244T15, D5244T17
    • Volvo XC60 (2009–)2015Engine B4204T10, B4204T11, B4204T12, B4204T15, B4204T7, B4204T9, B6304T4, B6324S4, B6324S5, D4204T5 only
    • Volvo XC70 (2008–)2010Engine B6304T2, B6324S, B6324S2 only
    • Volvo XC70 (2008–)2011–2013Engine B6304T4, B6324S4, B6324S5 only
    • Volvo XC70 (2008–)2014–2015Engine B4204T11, B6304T4, B6324S4, B6324S5, D4204T5 only

    What does this fault code mean?

    The engine control module (ECM) constantly receives the information it needs from the Forward Sensing Module (FSM) over the CAN network, and uses it to provide brake support when there is a risk of collision. The code is set when communication with the FSM stops.

    Possible causes

    • Open circuit in the communication cable
    • Communication cable shorted to ground or voltage
    • Contact resistance or oxidation in the connections
    • The fault may lie in the Forward Sensing Module (FSM)
    • The fault may lie in the central electronic module (CEM)
    • The software is not upgraded

    What you can do

    1. 1Read the code with a diagnostic tool and check whether it is active or only stored
    2. 2Read the codes in the central electronic module (CEM), since it monitors the voltage on the CAN network
    3. 3Check the connectors at the engine control module and at the forward sensing module for contact resistance and oxidation
    4. 4Use a multimeter to check that the communication cable to the forward sensing module has no break and no contact with ground or voltage
    5. 5City Safety is part of the car's safety systems, so have a workshop check the forward sensing module if the fault remains

    Symptoms you may notice3

    • Cruise control does not engage
    • Cruise control does not work at all
    • City Safety does not work or does not intervene

    What the fault can affect2

    • Cruise control is disengaged for as long as the fault is active
    • The City Safety function is switched off

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

    OBD Tuning

    Sweden's leading expert center for automotive electronics. We offer professional ECU tuning, control unit repair and diagnostics with 12-month warranty.

    Services

    • Engine Tuning
    • ECU Repair
    • Module Cloning
    • Instrument Cluster
    • SRS / Airbag
    • Immobilizer

    Database & Diagnostics

    • ECU Database
    • DTC Fault Code Catalog
    • Diagnostic Guides & Live Data
    • AI Fault Code Analyzer
    • News

    ECU Manufacturers

    • Bosch
    • Continental
    • Delphi
    • Delco
    • Denso
    • Magneti Marelli
    • Siemens / VDO
    • Keihin
    • Temic

    Company

    • About us
    • Contact
    • Workshop Partners
    • Shipping Guide
    • Warranty
    • FAQ
    • Terms & Conditions
    • Privacy Policy
    • Site Map

    • Engine Tuning
    • ECU Repair
    • Module Cloning
    • Instrument Cluster
    • SRS / Airbag
    • Immobilizer

    • ECU Database
    • DTC Fault Code Catalog
    • Diagnostic Guides & Live Data
    • AI Fault Code Analyzer
    • News

    • Bosch
    • Continental
    • Delphi
    • Delco
    • Denso
    • Magneti Marelli
    • Siemens / VDO
    • Keihin
    • Temic

    • About us
    • Contact
    • Workshop Partners
    • Shipping Guide
    • Warranty
    • FAQ
    • Terms & Conditions
    • Privacy Policy
    • Site Map

    Visit us

    Gjuterigatan 29, Karlstad

    Call us

    054-830 480

    Email us

    service@obdtuning.se

    © 2026 OBD Tuning Karlstad. All rights reserved.