WESTERN STAR WON'T SHUT DOWN UNTIL HEADLIGHTS ARE OFF?

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Truckonandon, Apr 27, 2019.

  1. Truckonandon

    Truckonandon Bobtail Member

    2
    0
    Apr 27, 2019
    0
    Hello

    Has anybody run into this problem?
    2012 Western Star Tandem.
    Start the truck.
    Turn the headlights on
    Turn the truck off.
    Truck engine will not shut down until the headlights are switched off.
     
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  3. mhyn

    mhyn Road Train Member

    4,255
    4,515
    Dec 29, 2008
    Northridge, CA
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    only dealer can help you. mulitiplexing issue..
     
  4. Truckonandon

    Truckonandon Bobtail Member

    2
    0
    Apr 27, 2019
    0
    I was thinking it was the ECC
     
  5. trojanhorse

    trojanhorse Bobtail Member

    9
    0
    Apr 14, 2015
    0
    Now that's an odd problem!
     
  6. Cano

    Cano Bobtail Member

    1
    0
    Nov 30, 2022
    0
    You ever figure it out? I have a 2015 western star 4900sb with the same issue.
     
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