Mazda Repair Questions? Ask Mechanics for Answers ASAP
these models are known for TCM failure last time I checked they were on national back order. I am not certain what your problem is but I suspect it is random shift solenoid code(s) or maybe some random shifting issues and at the same time you lose the gear positon indication on the dash? Very difficult t prove when the problem is intermittent. If you have more details I am willing to try and help.
I haven't heard anything good or bad about the rebuilt TCM's but sounds like that is what you need based on your description. Did you check with a Mazda dealer to confirm if they were on back order?