2012 Western Star electrical Help!

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Dirtworks85, Oct 6, 2022.

  1. Dirtworks85

    Dirtworks85 Bobtail Member

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    Feb 2, 2022
    0
    We have a 2012 Western star tri axle dump truck. Driver did pre check this morning everything was fine, got to the paving plant lost backup lights and now alarm comes on when you apply brakes and the running lights all blink and alarm sounds when they are on. Disconnected wire to alarm and no lights work, anyone ever encountered this?
     
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  3. Ridgeline

    Ridgeline Road Train Member

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    Dec 18, 2011
    Michigan
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    Check all the grounds, I had this issue on a 2015, it was a few bad grounds.

    Also do you have a leaking cab?

    Most WS seems to leak, especially between that 2011 to 2018 cabs, check for water damage.

    I got tired of the dealer not sealing it up right so when new ones come in, the glass guy comes out, removes the windshield and reseats it with a sealant.
     
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