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2007 Peterbilt 379 Park light stays on

Discussion in 'Peterbilt Forum' started by cswolley, Jan 21, 2021.

  1. Jan 21, 2021 #1
    cswolley

    cswolley Bobtail Member

    8
    2
    Feb 22, 2019
    0
    Hi, I have a 2007 379 Peterbilt and the park light on the dash stays on. With that being said the door buzzer also isn't working. With the key on, park brake released, when you open door the buzzer should go off.

    I've replaced door switch and the park brake sensor and still no improvement. Tried changing the dash ICU computer and that made no improvement.

    Any advice would be great, Thank you
     
    cswolley, Jan 21, 2021
    cswolley, Jan 21, 2021
    #1
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  3. Jan 21, 2021 #2
    pushbroom

    pushbroom Road Train Member

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    Sep 1, 2012
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    There is most likely more then one park brake switch. A non working switch would cause the light and buzzer to not work.
    Dig around on the RH side of the steering column and see if there is another one plumbed into the same line. Also try unplugging the switch/jumping it to rule out an air issue.
     
    pushbroom, Jan 21, 2021
    pushbroom, Jan 21, 2021
    #2
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