Why are these warning lights coming on? Abs, hill assist, red triangle Cascadia

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by dextrdog, Jan 25, 2019.

  1. dextrdog

    dextrdog Light Load Member

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    The abs, hill assist, and the red triangle randomly come on, at this point, the truck stops downshifting by itself when slowing down or approaching red light,have to do it manually. Upshifts fine. When I turn the truck off and turn it back on, the lights go away, but come on sooner or later... pull different trailer every day. 3rd day with this problem. 2017 cascadia day cab single axle automatic
     
  2. LDLWells

    LDLWells Heavy Load Member

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    Red triangle is your traction control. I have no idea about hill assist
     
  3. HopeOverMope

    HopeOverMope Road Train Member

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    Sounds like a brief loss of power to the ECM, or the abs ECM.