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Thread: MM3 Won’t Turn On

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    MM3 Won’t Turn On

    So I took the camper to the mountains this past week, and those wonderful Tennessee bridges basically knocked my MM3 out.

    Had it mounted and it never came loose or actually hit anything, but lights out now.

    I can’t even get it to come on.

    I’ve checked every connection and unplugged it , waited and plugged it back in and still nothing.

    Any suggestions?


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  3. Top Of Page | #2
    I WILL STAND! AK Bob's Avatar

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    MM3 Won’t Turn On

    Quote Originally Posted by Cscott622 View Post
    So I took the camper to the mountains this past week, and those wonderful Tennessee bridges basically knocked my MM3 out.

    Had it mounted and it never came loose or actually hit anything, but lights out now.

    I can’t even get it to come on.

    I’ve checked every connection and unplugged it , waited and plugged it back in and still nothing.

    Any suggestions?
    If you are sure all connections are good, you could try a scanner in your OBD port to verify its working and supplying power.

    Other than that you could have a bad cord.

    I would give MM3 Power a call on Monday.


    2014 RAM 3500 (Aisin) 3.73 4X4 Limited Crew Cab Long Bed DRW. Oil Bypass Filter, 50 Gallon auxiliary fuel tank.

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    2014 RAM 3500 (Aisin) 3.73 4X4 Limited Crew Cab Long Bed DRW. Oil Bypass Filter, Fuel Filtration Kit, Cold Air Intake, City Diesel Actuator and 50 Gallon Aux Fuel Tank.

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    #1 VENDOR cumminsdieselfreak's Avatar

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    Re: MM3 Won’t Turn On

    Quote Originally Posted by AK Bob View Post
    If you are sure all connections are good, you could try a scanner in your OBD port to verify its working and supplying power.

    Other than that you could have a bad cord.

    I would give MM3 Power a call on Monday.


    2014 RAM 3500 (Aisin) 3.73 4X4 Limited Crew Cab Long Bed DRW. Oil Bypass Filter, 50 Gallon auxiliary fuel tank.

    Sent from my iPad using Tapatalk
    X2.

    If you've verified everything this is about the extent of what you can do.

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  7. Top Of Page | #4

    Re: MM3 Won’t Turn On

    I have no idea what happened to it, but I took it out brought it in the house for a while and plugged it back in earlier and it’s working now.

    Guess it just got tired of getting beat like a bass drum.

    Thanks fellas.


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  9. Top Of Page | #5
    WE WILL STAND! IGOTACUMMINS's Avatar

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    Re: MM3 Won’t Turn On

    Quote Originally Posted by Cscott622 View Post
    I have no idea what happened to it, but I took it out brought it in the house for a while and plugged it back in earlier and it’s working now.

    Guess it just got tired of getting beat like a bass drum.

    Thanks fellas.
    Sounds like you had a loose connection.

    "The grass is greener where you water it"


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