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OMG HELP WANTED

Discussion in 'A4/S4 forum(B5 Chassis)' started by trinistyle, Dec 9, 2011.

  1. trinistyle

    trinistyle New Member

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    Drove my car today and noticed the abs light is on so decided to take a detour to my mates garage and get it checked.
    Fault code osf abs sensor short circuit to positive & data bus message missing from engine ecu.!!!!

    Anyone got a clue on whats those codes MEANS :sos:
     
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  3. quattrojames

    quattrojames Moderator
    Staff Member Moderator Audi A6 Audi Avant Owner Group

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    What car have you got? Sounds like the ABS sensor is goosed.
     
  4. gary3306

    gary3306 Active Member
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    Speed sensor on that wheel is goosed. Easy job to fit a new one.
     
  5. trinistyle

    trinistyle New Member

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    Already replaced the osf abs sensor and checked continuity from the abs module to the sensor all the wiring seems ok but the weird thing is I get the same code when the sensor is unplugged or connected...(Short circulit to postive & Data bus missing message from engine control module) Its driving me Nuts :asskicking:

    By the way Its an Audi A4 Quattro 2000 model B5
     
  6. Broken Byzan

    Broken Byzan Photographic Moderator
    Staff Member Moderator VCDS Map User quattro Audi A4

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    ABS ECU needs to be reworked. The fine wires break up causing all sorts of issues. The first of which is sporadic failure and eventual non communication.

    BBA reman do them IIRC
     

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