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Thread: MM3 Used - Blank No Tunes?

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    Exclamation MM3 Used - Blank No Tunes?

    I bought MM3 used, and it's blank without a tune.

    I wanted to get a hold of one for a while, and this became available.

    I was looking to use it as a gauge to start and add tunes from DRD, who I've followed since before everything got ugly.

    I am looking for some help!

    I only had the MM3 plugged into the OBDII, and it caused warning gauges (engine temp hot), low oil pressure, tpms, and Park light flashing dash lights flashing.

    I will be calling MM3 to ask questions tomorrow as well.

    Thanks in advance for your support.


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

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    MM3 Used - Blank No Tunes?

    Very odd indeed; never heard of that happening.

    Please keep us posted.

    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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  5. Top Of Page | #3

    MM3 Used - Blank No Tunes?

    I unplugged the MM3, shut the key off, and waited with the door open for the computer to go to sleep before I tried cycling the key again, but the issues persisted.

    After the MM3 was unplugged and the computer had gone to sleep.

    I had to disconnect the batteries for the issue to resolve.

    Nervous about plugging it back in as I don’t feel like it’s safe.


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  7. Top Of Page | #4
    Watch Dog! Corkey's Avatar

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    MM3 Used - Blank No Tunes?

    Are both green icons appearing when the monitor is on?

    II 60HP STICKS, II 33% CP3, II S464 2ND GEN SWAP, FASS 165 TITANIUM SIGNATURE SERIES, AFE INTAKE HORN, S&B FILTER, 5" TURBO BACK, ALPHAREX HEAD LIGHTS, 38X13.5X20 RAZOR M/T, MOTO METAL RIMS, 6" LA LIFT KIT, COMPLET MM3 KIT, BUILT TRANSMISSION, 6 BOLT REDHEAD STEERING BOX

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  9. Top Of Page | #5

    Re: MM3 Used - Blank No Tunes?

    Where are the green lights located?

    Once it started glitching out my dash, I stopped paying attention to the MM3, but the MM3 wasn’t glitching, just the truck.

    It started with a check engine and TPMS and got worse from there.


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

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    Re: MM3 Used - Blank No Tunes?

    Maybe the MM3 was causing issues, and that’s why the seller got rid of it.

    You did say it was used, correct?


    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

    Re: MM3 Used - Blank No Tunes?

    Yes, the seller said that he had purchased it and then found he liked EZ Lynk, so he tuned his truck with that and then used MM3 for a monitor screen because “EZ Lynk doesn’t allow music when connected.”

    I just snatched it up because it was available, and I could get my hands on it, but it looks like I might need to repurchase a new module when I pull the trigger on the complete kit.


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