Databus communication issue

Discussion in 'Freightliner Forum' started by GRobert8916, Apr 24, 2023.

  1. GRobert8916

    GRobert8916 Bobtail Member

    1
    1
    Apr 24, 2023
    0
    I have a 2014 Coronado. I’m having an issue with after I wash the truck, and the truck shut off, my dash cluster and gauges will light up and my screen will display No Databus Communication. Sometimes it will stay on steady and sometimes it will flash on and off. Any ideas on what to look for as to what is causing this? I think moisture is getting in somewhere but not sure where to look.
     
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  3. superteckmp

    superteckmp Bobtail Member

    1
    0
    Jun 27, 2023
    0
    I have the same issues... Dealer says it is the ICU
     
  4. Jalaniz0718

    Jalaniz0718 Bobtail Member

    14
    4
    Mar 22, 2020
    0
    What you have to do, my 2015 Coronado does the same after wash/ rain
     
    Deezl Smoke Thanks this.
  5. Deezl Smoke

    Deezl Smoke Medium Load Member

    495
    317
    Feb 12, 2011
    Hillsboro Oregon
    0
    I'll ad to the list.
    2015 Coronado, dd16, manual. Driving through rain, same display, to include once the truck can set for several hours in the dry, the alarm will start to slowly stutter on and off, then off.
    Next day, key on, the ecm goes through it's self test, and it starts and drives no issues.
    Then,.......go through this whole scenario once again, but middle of night, start the diesel bunk heater, Whole other set of red lights and alarm go off. Shut down heater, no effect. Turn off batteries and let sit for several cold hours, then back to normal.

    Definitely a moisture issue, but hoping to learn the main place to start and go from there.
     
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