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Thread: MM3 Turning Off

  1. Top Of Page | #1
    RAMTUFF16's Avatar

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    MM3 Turning Off

    Ok, so when I turn the truck to the run position the tuner comes on just fine, but when I start it from there it shuts off and won’t come back on until I turn the truck off and unplug and replug it in the OBDII port.

    Any ideas?

    TIA.


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  3. Top Of Page | #2
    MOD watersupply189's Avatar

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    Re: MM3 Turning Off

    Truck batteries?

    Mine does that and/or the tunes won’t load automatically.

    Taking my truck Friday to get two new batteries.

    One of mine is showing weak even after a full charge on each one.


    2016 Ram 3500 CC 4x4, G56, Dr. DRD medically cured!

    2016 RAM 3500 4x4 Laramie Crew Cab
    Cummins,G56, Rough Country level, Morimoto LED fog lights, LED headlights, Lund Attitude Steps sprayed with Line-X, DRL's Activated, 35x12.50R18 Falken Wildpeak ATW3, Fuel Vapor Wheels Matte Black w/Dark Tint, A.R.E. Truck cap and swing boxes

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  5. Top Of Page | #3
    RAMTUFF16's Avatar

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    Re: MM3 Turning Off

    Maybe?

    I’ll have to have them tested.


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  7. Top Of Page | #4
    QualityMike's Avatar

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    Re: MM3 Turning Off

    Mine started to do the same thing.

    Batteries are 4 years old.

    Time for new, I think.

    2018 Tradesman Long bed - 56K Miles - Aisin Transmission

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  9. Top Of Page | #5
    QualityMike's Avatar

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    Re: MM3 Turning Off

    New batteries last weekend.

    It seems to have taken care of the MM3 turning off and staying off. (Turning off and flashing red/green on the side).

    Also, a buddy of mine had the same issue on his Chevy, and replacing the batteries took care of it as well.

    2018 Tradesman Long bed - 56K Miles - Aisin Transmission

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  11. Top Of Page | #6
    MOD watersupply189's Avatar

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    Re: MM3 Turning Off

    Quote Originally Posted by RAMTUFF16 View Post
    Maybe?

    I’ll have to have them tested.
    Any update friend?


    2016 Ram Laramie 3500, G56, 6.7, CC, 4x4

    2016 RAM 3500 4x4 Laramie Crew Cab
    Cummins,G56, Rough Country level, Morimoto LED fog lights, LED headlights, Lund Attitude Steps sprayed with Line-X, DRL's Activated, 35x12.50R18 Falken Wildpeak ATW3, Fuel Vapor Wheels Matte Black w/Dark Tint, A.R.E. Truck cap and swing boxes

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  13. Top Of Page | #7
    RAMTUFF16's Avatar

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    Re: MM3 Turning Off

    It was definitely the batteries.

    Thanks.


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