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My transmission shifts hard and one or both the check engine and AT lights are on
Topic starter
Posted : 10/02/2021 10:52 am
Mazda TCMs are known to fail particularly for the 3 & 5 models of the specified year ranges. Please scan for the codes and see if they are the codes we support for repair. If no codes are present but the symptoms are similar to what is described in the product description then we can still diagnose and repair the TCM.
Its important to make sure the rebuilt TCM is mounted to the brake lines after its been rebuilt in order to avoid the unit from being overheated again thats typically caused by it being mounted to the transmission.
Posted : 10/02/2021 1:20 pm