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2013 S-max- Steering Malfunction issue - Code B100B-

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Hi .. i have a 2013 S max with keyless entry and one day had a steering malfunction light on the dash.. next day car would not crank and nothing on the dash apart from ford symbol and steering malfunction.  Forscan shows this error ' Code B100B - Column lock Ground Authorisation  ...  Module  Remote Function Actuator.   If i clear the RFA code it works for a while then same issue again.. i have had the Steering Lock module change and reprogrammed, Central locking module changed and Driver side front door lock assembly changed..  no luck... finally took it to Ford and they said they can look at it but no guarantees and will cost me £££ which i dont have.. really like the car and would like to get it sorted.. any ideas ?  Many thanks..

Also have tried another BCM and programmed.. same issue

  • Quote
    • 2 years later...


    hi, I have the same problem on my Fiesta, did you solve it?

  • Quote

    What is the full code (Forscan?) as the list below gives more information and my thought would be checking for a wiring fault rather than just replacing parts without any real justification (however I don't have any real idea other than that)?
    https://dot.report/dtc/B100B

  • Quote
    4 hours ago, mik123 said:

    same problem on my Fiesta,

    There is something not right with your profile. You say that you have a 2011 Fiesta IV 🤔

    In the UK a 2011 Fiesta would be a Mk7 or if you prefer Mk.VII

    wrong.JPG

     

    Fiesta.JPG

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    • The Digestive Forum Roundup (24th May - 31st May 2026)

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      The Digestive Forum Roundup (24th May - 31st May 2026) We hope this email finds you well and enjoying your week. As always, our forum has been buzzing with activity, so we’ve compiled the highlights for you. Plenty of interesting discussions are taking place, especially around the Ford Focus and Fiesta models. Starting off with the Focus, many members have been discussing issues with the Emergency Call System, particularly in the Mk4 model. PLB raised concerns about persistent malfunctions, a se
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