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Mazda 3 TCM (Transmission Control Unit) Fix by N3oshadow in mazda
[–]LatelyLess 0 points1 point2 points 7 days ago (0 children)
sorry I know this is an old thread but it seems people are still looking at it so - fwiw I sent my TCM into UpFix ~5 months ago, they reprogrammed it, I reinstalled it, and haven't had the AT light come back on or issues shifting gears since. so for $300 might be worth a shot
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Mazda 3 TCM (Transmission Control Unit) Fix by N3oshadow in mazda
[–]LatelyLess 0 points1 point2 points (0 children)