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  1. 2014-2018 Mazda 3 Skyactiv Audio & Electronics
    Hi. Unless Mazda decides to remove JCI Test Mode completely from firmware this tweak should work on any firmware past and including V59, certainly worked on my 411A. JCI Test Mode was only removed from UI, but functionality is still there. Looking in firmware 55.00.753A I was able to find...
  2. 2014-2018 Mazda 3 Skyactiv Audio & Electronics
    Accessing the Infotainment Diagnostics Menu - and other Special Key Combinations Not sure if anyone else has mentioned this elsewhere, but I went to my dealership today and one of the technicians taught me a cool trick. Diagnostics Menu Hold: Music + Favorites + Pwr/Mute Continue holding until...
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