mackncheese Posted December 2, 2017 Share Posted December 2, 2017 My local dealer’s service manager doesn’t know about the 12 B programming for the vehicle ECM. The search function of the site is not working for me. I thought someone posted the official Mack paperwork on the 12 B programming. Would someone post it again, please. Thanks for your time. Quote Link to comment Share on other sites More sharing options...
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