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Thread: MM3 monitor not displaying

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    Green Bay's Avatar

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    MM3 monitor not displaying

    I temporarily disconnected the USB cable from monitor, plugged USB cable back in and now monitor won't display anything. Only thing I get is a red and green flashing light (from the edge of the monitor). Any ideas of how to fix problem would be greatly appreciated.

    2016 2500 6.7L Cummins 6" Pro Comp lift, 37/12.50/20 Pro Comp tires, MM3 package by DRD with Light tunes, 5" TBE and EGR/Throttle valve delete


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    TH-64's Avatar

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    Re: MM3 monitor not displaying

    Quote Originally Posted by Green Bay View Post
    I temporarily disconnected the USB cable from monitor, plugged USB cable back in and now monitor won't display anything. Only thing I get is a red and green flashing light (from the edge of the monitor). Any ideas of how to fix problem would be greatly appreciated.

    2016 2500 6.7L Cummins 6" Pro Comp lift, 37/12.50/20 Pro Comp tires, MM3 package by DRD with Light tunes, 5" TBE and EGR/Throttle valve delete
    Did you try unplugging and plugging back in the obd2 cable?

    Sent from my SM-G950U using Tapatalk

    2012 CCSB Saddle Brown Pearl... DRD tuned

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    Green Bay's Avatar

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    Re: MM3 monitor not displaying

    Quote Originally Posted by TH-64 View Post
    Did you try unplugging and plugging back in the obd2 cable?

    Sent from my SM-G950U using Tapatalk
    I haven't tried that yet. Thought of it but wasn't sure if that would cause more issues

    2016 2500 6.7L Cummins 6" Pro Comp lift, 37/12.50/20 Pro Comp tires, MM3 package by DRD with Light tunes, 5" TBE and EGR/Throttle valve delete


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    Green Bay's Avatar

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    Re: MM3 monitor not displaying

    Quote Originally Posted by Green Bay View Post
    I haven't tried that yet. Thought of it but wasn't sure if that would cause more issues

    2016 2500 6.7L Cummins 6" Pro Comp lift, 37/12.50/20 Pro Comp tires, MM3 package by DRD with Light tunes, 5" TBE and EGR/Throttle valve delete
    Other thing that's interesting is the light on the edge of monitor continuously blinks red and green even with key out of ignition

    2016 2500 6.7L Cummins 6" Pro Comp lift, 37/12.50/20 Pro Comp tires, MM3 package by DRD with Light tunes, 5" TBE and EGR/Throttle valve delete


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  9. Top Of Page | #5
    Green Bay's Avatar

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    Re: MM3 monitor not displaying

    Quote Originally Posted by Green Bay View Post
    Other thing that's interesting is the light on the edge of monitor continuously blinks red and green even with key out of ignition

    2016 2500 6.7L Cummins 6" Pro Comp lift, 37/12.50/20 Pro Comp tires, MM3 package by DRD with Light tunes, 5" TBE and EGR/Throttle valve delete
    Problem resolved!! Unplugging from OBD port did the trick

    2016 2500 6.7L Cummins 6" Pro Comp lift, 37/12.50/20 Pro Comp tires, MM3 package by DRD with Light tunes, 5" TBE and EGR/Throttle valve delete


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