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2008 Mazda 3 TCM bad?


2008 Mazda 3 The TCM was working fine, until about a week ago. I get a hard shift from gears going into 4th and 5th. Reverse is a really hard shift. No check engine light, but the AT light is back. 

2008 Mazda 3 TCM
2008 Mazda 3 TCM1
2008 Mazda 3 TCM2
Topic starter Posted : 04/03/2024 4:54 pm
Serge - UpFix Team
Famed Member Moderator

This is a commonly known issue with this TCM. If you have a scan tool that can communicate and read codes from the TCM pull those codes and compare it with the codes we state we can fix on the service repair page. Checking the transmission fluid and filter for any dirty contaminants is an important step as well. I'll include a link to the service repair page below:  

Posted : 04/03/2024 4:55 pm