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Wabco ABS red lamp on but no fault code

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by paramashchuk, Sep 28, 2019.

  1. Sep 28, 2019 #1
    paramashchuk

    paramashchuk Bobtail Member

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    Jul 24, 2019
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    Abs lamp on but no fault codes as in attached picture. 2004 KW T2000
    Any ideas?
     

    Attached Files:

    paramashchuk, Sep 28, 2019
    paramashchuk, Sep 28, 2019
    #1
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  3. Sep 28, 2019 #2
    mhyn

    mhyn Road Train Member

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    could be bad module.
     
    mhyn, Sep 28, 2019
    mhyn, Sep 28, 2019
    #2
  4. Sep 28, 2019 #3
    paramashchuk

    paramashchuk Bobtail Member

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    Jul 24, 2019
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    Can I force it to turn off from the software ?
     
    paramashchuk, Sep 28, 2019
    paramashchuk, Sep 28, 2019
    #3
  5. Sep 28, 2019 #4
    mhyn

    mhyn Road Train Member

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    Dec 29, 2008
    Northridge, CA
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    Brother you have the software not me. try it. maybe you can force it off. do it, don't worry.
     
    mhyn, Sep 28, 2019
    mhyn, Sep 28, 2019
    #4
    paramashchuk Thanks this.
  7. Sep 29, 2019 #5
    Heavyd

    Heavyd Road Train Member

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    Did you recently work on it or clear previous codes? If so, it needs to reset itself by you simply driving it over 5 mph so the system can see wheel speeds on all sensors. Then the light should go out.
     
    Heavyd, Sep 29, 2019
    Heavyd, Sep 29, 2019
    #5
    Oxbow and mhyn Thank this.
  8. Sep 29, 2019 #6
    paramashchuk

    paramashchuk Bobtail Member

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    The light has been on for a couple months now but owner wants it fixed now
     
    paramashchuk, Sep 29, 2019
    paramashchuk, Sep 29, 2019
    #6
    Oxbow Thanks this.
  9. Sep 29, 2019 #7
    Heavyd

    Heavyd Road Train Member

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    Strange state for it to be in all the this time. Road test it and watch for all 4 wheel speeds to be the same and make sure road speed at the bottom is accurate too.
     
    Heavyd, Sep 29, 2019
    Heavyd, Sep 29, 2019
    #7
    spsauerland and paramashchuk Thank this.
  10. Oct 2, 2019 #8
    Tx Countryboy

    Tx Countryboy Road Train Member

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    Wheel bearing wobble?? Bad sensor.
     
    Tx Countryboy, Oct 2, 2019
    Tx Countryboy, Oct 2, 2019
    #8
    paramashchuk Thanks this.
  11. Oct 2, 2019 #9
    Heavyd

    Heavyd Road Train Member

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    There are codes for those that should get logged.
     
    Heavyd, Oct 2, 2019
    Heavyd, Oct 2, 2019
    #9
    spsauerland Thanks this.
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