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Thread: Reprogramming TPMS Sensors With The MM3

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    f18framer's Avatar

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    Reprogramming TPMS Sensors With The MM3

    So I have an MM3 from Ray.

    I also recently put on some new 35x12.50 tires.

    I'm trying to reprogram my TPMS system, so it stops yelling at me every time I start the truck.

    I have gone into the MM3 and adjusted the settings, and it says that it successfully reprogrammed it; however, it is still saying my tires are low.

    What am I missing?

    2012 RAM 2500 Crew Cab SLT 6.7L.

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    MOD watersupply189's Avatar

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    Reprogramming TPMS Sensors With The MM3

    Have you tried driving it for several miles to see if it resets to what you adjusted for in the MM3?


    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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    f18framer's Avatar

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    Reprogramming TPMS Sensors With The MM3

    I did, and it didn't change.

    The tire pressure on the EVIC even says the exact pressure that it is "set" and is still flashing.

    It is a little annoying.

    2012 RAM 2500 Crew Cab SLT 6.7L.

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    MOD watersupply189's Avatar

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    Reprogramming TPMS Sensors With The MM3

    Try contacting MM3 to see what they say.

    Does anybody else on this forum have any ideas?


    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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    I WILL STAND! AK Bob's Avatar

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    Reprogramming TPMS Sensors With The MM3

    Are you entering the tire size in the correct format?

    For example, 35” tire needs to be entered as 35.00

    MM3 TPMS Issues: https://www.igotacummins.com/threads...853#post187853


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

    Sent from my iPad using Tapatalk

    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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    f18framer's Avatar

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    Re: Reprogramming TPMS Sensors With The MM3

    Quote Originally Posted by AK Bob View Post
    Are you entering the tire size in the correct format?

    For example, 35” tire needs to be entered as 35.00

    MM3 TPMS Issues: https://www.igotacummins.com/threads...853#post187853


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

    Sent from my iPad using Tapatalk
    So mine for TPMS only asks for the pressure desired.

    The tire size was for the speedometer.

    That worked perfectly.

    I can't get the tire pressure warning to go away.

    It's annoying.

    2012 RAM 2500 Crew Cab SLT 6.7L.

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    I WILL STAND! AK Bob's Avatar

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    Re: Reprogramming TPMS Sensors With The MM3

    Quote Originally Posted by f18framer View Post
    So mine for TPMS only asks for the pressure desired.

    The tire size was for the speedometer.

    That worked perfectly.

    I can't get the tire pressure warning to go away.

    It's annoying.
    Sorry about that; I got the two confused.

    Not sure why the new tire pressure would take, but still give the low-pressure warning.

    Hopefully someone who knows will respond shortly.


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

    Sent from my iPad using Tapatalk

    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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  15. Top Of Page | #8
    f18framer's Avatar

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    Re: Reprogramming TPMS Sensors With The MM3

    So I figured out the TPMS issue.

    I was playing with it a bit today and found that the low and high-range pressures on the MM3 are labeled backward.

    It works fine if you put your max pressure in the low blocks and the lows in the high range blocks.

    I don't know why it's like that, but it is.

    I found it when I turned off the light load to max inflation and the caution light went out.

    I then swapped the pressures in the programmer and the light came back on.

    I turned the TPMS back to light load, and the caution light went off again.

    2012 RAM 2500 Crew Cab SLT 6.7L.

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