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Red brake light and abs light

Audi-paddy Nov 5, 2018

  1. Audi-paddy

    Audi-paddy New Member

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    Hi
    I have an a4 b6 avant 54 reg 1.9tdi sport
    I have recently noticed with the cold weather when I start the car I get a red light saying brakes and then abs light on, happens mainly when it's been cold, but started randomly doing it but only on start-up
    Battery was fully charged a few days ago, brake fluid is full
    Scan shows
    65535 internal control module memory error 00-00
    18057 powertrain data bus P1649 35-00 missing message from abs controller

    Any ideas
    Thanks
     
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  3. Audi-paddy

    Audi-paddy New Member

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    Anyone?
     
  4. Mike B

    Mike B Well-Known Member

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    My 2.5tdi does it mainly in cold weather.I think its the sensor under the fluid reservoir that gets triggered by the current and its not easy to fix
     
  5. Dibs_h

    Dibs_h Member VCDS Map User

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    Battery is on it's way out mate. I had the exact same issue some years ago & changed the battery and never had the issue again.
     

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