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Firmware on 6 speed ATX on 2005 wagon

1K views 2 replies 2 participants last post by  604mazda6 
#1 ·
How can I tell if my ATX has the latest firmware? I read somewhere of something buying a used Wagon with a 6 speed ATX and it not shifting right and the remedy was to re-flash the tranny with a firmware update.
 
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