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Intermittant ABS/ESP light and other issues related

Discussion in 'A4/S4 forum(B5 Chassis)' started by Steve B5 Biker, Oct 1, 2012.

  1. Steve B5 Biker
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    Steve B5 Biker Member

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    Hi firstly a brief car history.
    A4 B5 Avant 2.5 tdi
    18" BBS REPS
    remapped, fmic
    coilovers,custom exhaust.
    Carbon roof etc....


    Have been getting ABS light coming on intermitantly over a few weeks now ,
    some times as soon as you fire up the engine, yet other times i can drive 10 miles before it rears its ugly head,sometimes it stays on untill ive comleted my journey,yet other times it just resets mid journey CONFUSED :uhm:
    ive had a friends vagcom on and its put up the following codes.

    ABS=01203 Instrument panel electrical connections ?
    ABS=18256 check dtc memory of ecu ?
    also
    Engine code 18259 Data bus powertrain,missing message from brake control menu ?

    Any help or guidance from the Audi Gods.... would be a great help

    Cheers in advance Steveb5biker:sos:
    #1
  2. Steve B5 Biker
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    Steve B5 Biker Member

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    I realise this is a very common topic on here
    just need a bit of guidance im guessing abs speed sensors maybe ?
    :tumble:
    #2
  3. Mackers
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    Mackers Member

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    i have the same car,,, heard about the ABS rings "snapping" might be worth taking the wheels off and having a look, whilst rotating the cv joints.
    #3
  4. aragorn
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    aragorn "Stick a V8 in it!" Staff Member Moderator

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    If it was speed sensors it'd tell you its speed sensors.

    Looking at your fault codes, theres some comms issues between the ABS, ECU and Cluster...

    Could be a failing ABS module, or corrosion in the wiring somewhere?
    #4
  5. Steve B5 Biker
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    Steve B5 Biker Member

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    Hi Mackers ,thanks for that, the cars booked in monday,having new clutch,with solid flywheel conversion, service oil n all filters changed,pre M.O.T so will get abs checked out with my spanner man, gonna be an expensive couple of days lol..
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  6. Steve B5 Biker
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    Steve B5 Biker Member

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    Cheers for that Aragorn will get it checked out next week will keep u all posted....
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  7. Mackers
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    Mackers Member

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    you got pics of ya FMIC, i'm toying with the idea
    FMIC.jpg
    #7
  8. Steve B5 Biker
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    Steve B5 Biker Member

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    No pictures of instalation Mackers, sorry was already done when i bought the car, can try get some close up shots of it now but RS4 bumper may hide a lot of details....:sorry:
    #8

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