Learn the top signs of a faulty Transmission Control Module (TCM) and its replacement cost. Keep your car running smoothly with our expert advice.

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.

A transmission control module replacement, on the other hand, is less labor-intensive. Depending on the vehicle, it may only require one hour of labor.

The transmission range sensor (also called neutral safety switch) is responsible for: It constantly monitors the gearshift lever position selected by the driver and communicates it to the transmission ...

To convince the transmission control module that a working automatic was still installed and clear the fourteen-odd diagnostic codes, [Dean] put together a block of eight common automotive relays.

More GM truck owners are reaching out to GM Authority stating that they've been waiting weeks and possibly even months for a fix, with no clear timeframe.

GM has issued a service update to address a problem related to the Transmission Control Module in certain 2020 and 2021 model-year C8 Corvette Stingray models.

CARDONE says its 11 exclusive part numbers of A1 CARDONE Reman EATX Modules offer OE performance without the high price and are in stock, ready to ship.