IC (Ignition Control) System

IC (IGNITION CONTROL) SYSTEM
This system controls electronically the time of electric current flow to ignition primary coils as well as ignition timing.

ECM judges the engine condition by using signals from various sensors, selects the most suitable electric current flow time and ignition timing for that engine condition from among those prestored in its memory and sends an ignition signal to the igniter.

The igniter turns ON and OFF the primary current of the ignition coils according to the signal from ECM.

Control of the system includes three different types as follows.
- Ignition timing control at engine start
- Ignition timing control after engine start
- Electric current flow time control