Electronic Control System Description

Electronic Control System Description

The electronic control system consists of 1) various sensors, switches, ECUs which detect the state of engine and driving conditions, 2) ECM which controls various electric control devices according to the signals from "1)" and 3) various electric control devices.

Functionally, it is divided into the following subsystems:
- Fuel injection control system
- Ignition control system
- Electric throttle control system
- Fuel pump control system
- Radiator cooling fan control system
- Evaporative emission control system
- HO2S heater control system
- A/C control system
- Immobilizer control system

Especially, ECUs (included in ECM) intercommunicate by means of CAN communication.

Refer to Engine and Emission Control System Flow Diagram: and Engine Control System Circuit Diagram.