General

The ECM (Engine Control Module) receives signals sent from various sensors and switches to judge the engine operating condition and emits output signals to provide the optimum control and/ or functioning of various systems.
Major items governed by the ECM are as follow:
- Fuel injection control
- Ignition system control
- Idle air control
- Canister purge control
- EGR system control
- Radiator fan control
- Fuel pump control
- Air conditioner cut control
- On-board diagnosis function