2009 peterbilt dash cuts out

Discussion in 'Peterbilt Forum' started by Junk Yard Dogg, Dec 15, 2020.

  1. Junk Yard Dogg

    Junk Yard Dogg Bobtail Member

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    Jun 21, 2013
    winnipeg manitoba canada
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    I have a 2009 peterbilt 367 with a c-13. My dash cuts out at cold temps -15c and colder never in the summer. The dash quickly cuts out and then reboots like you just turned the key on. The truck stays running all my exterior lights stay on and my radio stays on, just the gauges quickly shut down and the lcd display and then reboots. I also notice my trip meter resets to a previous saved reading, eg my trip meter showed 200 kms then the dash does it’s quick shutdown and when it reboots the trip meter will be 78 kms.
     

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  3. pushbroom

    pushbroom Road Train Member

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    Whats the volt gauge reading when it happens? Is it close to 15v?
     
    spsauerland Thanks this.
  4. Junk Yard Dogg

    Junk Yard Dogg Bobtail Member

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    Jun 21, 2013
    winnipeg manitoba canada
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    It always sits at 14.5, I haven’t noticed any change before it happens.
     
  5. pushbroom

    pushbroom Road Train Member

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    15v will cut out the dash computer.
    If the voltage is fine most likely needs the cecu flashed to the latest version
     
  6. Junk Yard Dogg

    Junk Yard Dogg Bobtail Member

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    Jun 21, 2013
    winnipeg manitoba canada
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