est What is a PCM? The Powertrain Control Module (PCM) is a more encompassing term that includes the ECU along with transmission control functions. It controls both the engine and transmission to ensure seamless operation and optimal vehicle performance. ...

est What is a PCM? The Powertrain Control Module (PCM) is a more encompassing term that includes the ECU along with transmission control functions. It controls both the engine and transmission to ensure seamless operation and optimal vehicle performance. ...