Strange problem. Cruise will not set with headlights on.

Discussion in 'Freightliner Forum' started by mitrucker, Aug 29, 2019.

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  1. Aug 29, 2019 #1
    mitrucker

    mitrucker Road Train Member

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    2009 Cascadia DD15, 10 spd manual. Cruise control cuts out and will not set if you turn on headlamps, or wipers, or four ways. Other than that, cruise functions normally. Thoughts????
     
    mitrucker, Aug 29, 2019
    mitrucker, Aug 29, 2019
    #1
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  3. Aug 29, 2019 #2
    RoadRooster

    RoadRooster Road Train Member

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    Cruise designed for day can...no night drives?
     
    RoadRooster, Aug 29, 2019
    RoadRooster, Aug 29, 2019
    #2
  4. Aug 29, 2019 #3
    wichris

    wichris Road Train Member

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    Plug in and change the parameters.
     
    wichris, Aug 29, 2019
    wichris, Aug 29, 2019
    #3
  5. Aug 29, 2019 #4
    CraigInReston

    CraigInReston Light Load Member

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    Take it in to the 'stealership'. They'll have to plug-in with their software to determine the problem. Otherwise you could just be throwing parts at it. Pay the extra $$$ and save yourself the headache.
     
    CraigInReston, Aug 29, 2019
    CraigInReston, Aug 29, 2019
    #4
  7. Aug 29, 2019 #5
    uncleal13

    uncleal13 Road Train Member

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    Yup, dealer set parameters.
    My 2016 did that brand new.
    At first I had dealer set it to disabled, but then the cruise didn’t work at all. Then had it set to four way flasher only. That did the trick. I figured if I had the 4 ways on , I probably had more important things to worry about than cruise control.
    I forget the parameter, but had something todo with the MFC switch, cruise parameters. I have Detroit Diesel Diagnostic Link Standard edition, but you need the Professional version to access it.
     
    uncleal13, Aug 29, 2019
    uncleal13, Aug 29, 2019
    #5
    mhyn Thanks this.
  8. Aug 29, 2019 #6
    mitrucker

    mitrucker Road Train Member

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    Dealer guy tried that one already.
     
    mitrucker, Aug 29, 2019
    mitrucker, Aug 29, 2019
    #6
  9. Aug 29, 2019 #7
    mitrucker

    mitrucker Road Train Member

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    Thanks. I’ll have the guy try that next.
     
    mitrucker, Aug 29, 2019
    mitrucker, Aug 29, 2019
    #7
  10. Aug 29, 2019 #8
    mitrucker

    mitrucker Road Train Member

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    Used to not be an issue, but my days start anywhere from 03:30 to 05:00 now, plus winter is coming. Lots of time driving in the dark.
     
    mitrucker, Aug 29, 2019
    mitrucker, Aug 29, 2019
    #8
    RoadRooster Thanks this.
  11. Aug 29, 2019 #9
    wichris

    wichris Road Train Member

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    Maybe he needs to be better at it. Had our shop plug in and it was in there.
     
    wichris, Aug 29, 2019
    wichris, Aug 29, 2019
    #9
  12. Aug 29, 2019 #10
    mitrucker

    mitrucker Road Train Member

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    Oh, it was in there. He disabled it with the computer, but the truck didn’t listen.

    I think another poster has the right idea. Leave it turned on for the four ways only.
     
    mitrucker, Aug 29, 2019
    mitrucker, Aug 29, 2019
    #10
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