The PCM is an integrated module that combines the functions of both the ECU and TCM (transmission control module). It oversees the engine and transmission systems, ensuring smooth coordination between the two for seamless performance. What is PCM? The Powertrain Control Module (PCM) is an advanced version of the ECU that not only controls the engine but also oversees the transmission, drivetrain, and other related systems. This integrated approach allows for better coordination and overall v...

The PCM is an integrated module that combines the functions of both the ECU and TCM (transmission control module). It oversees the engine and transmission systems, ensuring smooth coordination between the two for seamless performance. What is PCM? The Powertrain Control Module (PCM) is an advanced version of the ECU that not only controls the engine but also oversees the transmission, drivetrain, and other related systems. This integrated approach allows for better coordination and overall v...