ABS not working 05 WS4900fa

Discussion in 'Western Star Forum' started by bigj1974, Feb 24, 2024.

  1. bigj1974

    bigj1974 Bobtail Member

    2
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    Feb 24, 2024
    0
    Key on.. should get ABS lights illuminated on dash then go out.. and be able to hear the “system self check” clicks… none of this happening now.. checked fuses.. swapped relay.. possible abs module failure???? Any ideas????
     
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  3. QUALITYTRUCK

    QUALITYTRUCK Road Train Member

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    Jun 14, 2009
    romulus,mi
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    Bad auxillary PDM. I believe it is located next to main PDM on 05 4700. Water intrusion is usual cause.
     
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