The Powertrain Control Module (PCM) is a more advanced version of the ECU, controlling not only the engine but also the transmission and other powertrain components. It acts as the brain of the vehicle, coordinating the functions of multiple systems to ensure smooth operation. Electronic Control Unit (ECU), Powertrain Control Module (PCM), and Engine Control Module (ECM) are all terms used to refer to the central computer system in your vehicle that controls various functions related to the e...

The Powertrain Control Module (PCM) is a more advanced version of the ECU, controlling not only the engine but also the transmission and other powertrain components. It acts as the brain of the vehicle, coordinating the functions of multiple systems to ensure smooth operation. Electronic Control Unit (ECU), Powertrain Control Module (PCM), and Engine Control Module (ECM) are all terms used to refer to the central computer system in your vehicle that controls various functions related to the e...