Transmission Control Module (TCM) faults are not unknown on these early Mazda 3s. Symptoms usually involve erratic shifting, a failure to select gear at all and having the car go into limp-home mode.

Automatic transmissions are highly complex automotive components. They're significantly more complicated and challenging to work on than manual transmissions, which means expensive repairs and ...

The transmission range sensor is a critical component that monitors gear selection and allows automatic transmissions to shift properly. But when this sensor fails, what repair costs can drivers ...

The transmission game has changed. Solenoids, sensors and computers have replaced vacuum lines, governors and kickdown cables on modern ­automatic transmissions. The tools have also changed: scan ...

Lately we have been receiving many Mazda TCM cores from customers who have purchased TCMs from Chinese resellers on . These TCMs are being advertised as “new” “refurbished” and “remanufactured” when ...