Engine Control Module/Powertrain Control Module (ECM/Pcm)
Vehicles have either ECM or PCM. Vehicles with manual transmission have ECM. Vehicles with automatic transmission have either ECM with separate Transmission Control Module (TCM), or PCM, depending on model. PCM combines the functions of ECM and TCM. ECM/PCM receives and processes signals from input devices. Operating conditions such as cold starting, altitude changes, acceleration and deceleration affect input device signals. Based on signals received, ECM/PCM sends signals to various components which control fuel injection, ignition timing, idle speed and emission control systems. For ECM/PCM location, see ECM/PCM LOCATION table.
ECM/PCM LOCATION
| Application | Location |
|---|---|
| Diamante | Behind Center Console |
| Eclipse, Galant & Mirage | Behind Right Side Of Instrument Panel |
| Montero & Montero Sport | Behind Right Kick Panel |
NOTE:
Components are grouped into 2 categories. The first category covers INPUT DEVICES , which control or produce voltage signals monitored by ECM/PCM. The second category covers OUTPUT SIGNALS , which are components controlled by ECM/PCM.