Cascadia Brake lights on when pedal released

Discussion in 'Freightliner Forum' started by simon999, Dec 11, 2018.

  1. simon999

    simon999 Light Load Member

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    Feb 6, 2014
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    I have 2017 cascadia model and tractor brake lights acting.
    When I release brake pedal stop lights stay on. If the truck is not running and trailer not connected -same thing lights are acting. I checked fuses , all good. I went to dealership they could not find problem...I read online that this might be upcoming recall. Perhaps ahybody had this problem and knows what was replaced to fix it?
     
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  3. Grumppy

    Grumppy Trucker Forum STAFF Staff Member

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    West Monroe, La
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    Brake light switch sticking or brake pedal isn't coming all the way back up. :dontknow:
     
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  4. baha

    baha Road Train Member

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    A Bad foot valve can make brake light stay on, you need a crack a brake line to make sure air is not still in system when brake lights stay on?
     
  5. simon999

    simon999 Light Load Member

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    I drained all air out and took all relays out , but lights still on.
     
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  6. simon999

    simon999 Light Load Member

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  7. mhyn

    mhyn Road Train Member

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    my truck was under recall. they changed that switch
     
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  8. simon999

    simon999 Light Load Member

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    Its little pressure switch with 3 wires plug located on the right side by brake pedal on the manifold. $25 part.
     
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  9. simon999

    simon999 Light Load Member

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  10. Diggler

    Diggler Light Load Member

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    Dec 15, 2015
    Jax
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    I am running a 2019, my brake lights would be stuck on sometimes for a few seconds too long sometimes 10 minutes, seemed random. Took that switch out and here's what it looked like vs a new one. What a crap design to have to replace this on a year old truck
     

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