My MM3 tuner on my 2018 RAM 3500 has a black screen and flashes 2 red flashes, then 1 green and 2 red flashes.
My MM3 tuner on my 2018 RAM 3500 has a black screen and flashes 2 red flashes, then 1 green and 2 red flashes.
MM3 Tuner - Blank Screen With Flashing LED: https://www.igotacummins.com/threads...262#post214262
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.
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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.
Load test each of your batteries.
Any slight fall in voltage could cause this issue.
Have you tried unplugging and plug it back in?
2016 Ram Laramie 3500, G56, 6.7, CC, 4x4
2016 RAM 3500 4x4 Laramie Crew Cab ,G56
Any update?
2016 Ram Laramie 3500, G56, 6.7, CC, 4x4
2016 RAM 3500 4x4 Laramie Crew Cab ,G56
I occasionally have this trouble with my MM3, I replaced both batteries, and it still happens every once in a while.
It doesn't seem to affect the tuning or the truck, just a blank screen.
If you unplug it and plug it back in, it comes up with no issues.
The same thing with mine, nothing wrong with the tuning becomes annoying after a while.
From what I've seen over the forum, this is a pretty common issue with most MM3 units.
16 cummins Laramie longhorn, ccsb, 35x12.5x20 xplora mts ,tis wheels,fully deleted, pusher add a turbo kit,stainless diesel 475 5blade turbo over 63mm VGT delete turbo,manton springs, manton valve bridges,manton pushrods,ARP 625 headstuds,steedspeed t4i manifold , S&S 80% over injectors, thuren rear trackbar, kingspeed billet valve cover, revmax valve body billet plate, CCV reroute, pusher intake horn, thuren 2in level with king 2.5 front and rear, sway bar kit ,track bar and king steering damper. Air bags from airlift. 4" exhaust, fass lift pump,MM3,DRD tunes.pusher coolant reroute.
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