Glossary / Engine

TCM

14 Episode Mentions

Too Afraid to Ask

The TCM is a small computer that tells the car when to shift gears, making driving smoother.

Technical Definition

TCM stands for Transmission Control Module, an electronic unit that manages shift points and transmission behavior.

Hear It Discussed

"And when you go into the transmission computer, just no connection. ... So that has a separate transmission computer."
The Automotive Advice Experts You Trust To Keep Your Car Going Under The Hood show 05:59

"Could you see the TCM? Yes. So it was there. So it's an intermittent. Well, at the same time, to the TCM, the TCM wasn't talking to the engine, to the ECM."
Ron Ananian, The Car Doctor - December 6, 2025 - Hour 1 - (855)560-9900 - Full Moon Auto Mechanics & The Repairs It Creates Ron Ananian The Car Doctor 20:22

"...the transmission's like 1500. It comes with its own TCM or TCM, but you need those things, then it should be good..."
European Classics Under $10,000 —Why Do We Gravitate Towards Project Cars? Analog and Grit Podcast 02:55