Interior accessories dont turn off

Discussion in 'Peterbilt Forum' started by Bos Extreme Trucking, Jan 2, 2020.

  1. Jan 2, 2020 #1
    Bos Extreme Trucking

    Bos Extreme Trucking Bobtail Member

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    Nov 26, 2019
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    Im working on a 97 2ws 379 that when the key is shut off the interior accessories act as if the key is still on (the blower motor will still run, the oil and air brake light stay on, and the volts & amps read still). There is obviously a short some where, but I have not diagnosed where yet. If anyone has a diagram that would help please reach out.
    Thanks in advance,
    BOS Diesel Shop
     
    Bos Extreme Trucking, Jan 2, 2020
    Bos Extreme Trucking, Jan 2, 2020
    #1
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  3. Jan 6, 2020 #2
    FdEF

    FdEF Light Load Member

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    Dec 5, 2017
    Ogden, Ut
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    Obvious place to start would be the key switch
     
    FdEF, Jan 6, 2020
    FdEF, Jan 6, 2020
    #2
  4. Jan 6, 2020 #3
    Ridgeline

    Ridgeline Road Train Member

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    If you are a shop then you know how the relay system works on those years of trucks, maybe a stuck relay could be a cause of it.
     
    Ridgeline, Jan 6, 2020
    Ridgeline, Jan 6, 2020
    #3
  5. Jan 6, 2020 #4
    Bos Extreme Trucking

    Bos Extreme Trucking Bobtail Member

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    Nov 26, 2019
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    Thanks to both of you. Thats where I figured to check first.
     
    Bos Extreme Trucking, Jan 6, 2020
    Bos Extreme Trucking, Jan 6, 2020
    #4
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