I want to buy a code reader for my 2016 M2 6.7. I want one that not only works for the M2 but regular cars and truck as well. Most of the discussions on this site are specific our Cummins engines. I am an analog guy. Any recommendations would be appreciated. Many thanks, John
I don’t think you are going to find one that successfully work on OBDII and J1939 without getting to very expensive readers I have read where some people have tried OBDII readers with an adapter to J1939 and could not get them to work properly. Most OBDII readers are fairly reasonable now and IMO the best option for J1939 is the Bluefire for Motorhomes as you can read and clear codes and have the ability to monitor everything that the ECU outputs and even build a custom dash on a phone or tablet.
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Brian & Jeannie
2018.5 Seneca 37RB with to many mods to list
2015 Jeep JKU Rubicon