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ABS and DSC lights randomly come on and off

Discussion in 'E36 (1992-1999)' started by bimmermjw1, May 28, 2014.

    • Member

    bimmermjw1

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    My thoughts were either ABS module is bad or maybe ABS sensors at the wheels are bad. I have a little hand held code reader but it's not registering any codes so I'm stumped on where to start. Any guidance would be appreciated. Thanks!
    Michael Salaniuk likes this.
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    • Staff

    steven s

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    You need a special tool for ABS. Most code readers only scan the ECU.
    My money is on a bad sensor.
    First check for breaks in the wire.
    It will be difficult to troubleshoot until the ABS light is always on.
    • Member

    bimmermjw1

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    Ok. Thanks. Sounds like a good place to start.
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    • Technical Service Advisor

    charlson89

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    Yes most likely just a wheel speed sensor common for that car. Yes you will need a special code reader to read any codes from the ASC module. May need codes to help with the intermittent issue.
    Michael Salaniuk likes this.
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    • Staff

    steven s

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    I had a constant ACS, DSC on my Mini.
    Cleaned all the sensors. Didn't fix it.
    Bought 1 new sensor. Replaced the left side. Still bad.
    Took the one I removed and swapped it with the right. Bingo.
    Trial and error unless you can get the codes scanned.
    Michael Salaniuk likes this.
    • Member

    Michael Salaniuk

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    Get a BMW dealer or Bimmer shop to scan so you don't throw money/parts at a problem.

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