Glossary / Engine

PCM

40 Episode Mentions

Too Afraid to Ask

PCM is a computer inside the car that tells the engine and gearbox when to turn on or off. It helps the car run smoothly and efficiently.

Technical Definition

PCM stands for Powertrain Control Module, the electronic unit that manages engine and transmission functions in modern cars. It replaces older mechanical control systems with software‑based management.

Hear It Discussed

"that it needs a PCM and the issue is that they are obsolete. So, and I've been told that everybody I've talked to has had terrible luck with remanufactured PCMs."
Automotive Advice Talk Show How Can You Save Money On Car Repairs Under The Hood show 13:36

"for the PCM coming directly from Porsche"
Porsche 2025 year in review 9WERKS Radio : The Porsche and Car Podcast 30:01

"I'm watching the [2062.3s] scan tool, I'm watching signal, I'm watching the PCM shut off."
Ron Ananian, The Car Doctor - June 6, 2026 - Hour 2 Ron Ananian The Car Doctor 34:23