Electronic Control System Description

Electronic Control System Description

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

Functionally, it is divided into the following sub systems:

- Fuel injection control system
- Ignition control system
- Idle air control system
- Fuel pump control system
- Radiator fan control system
- Evaporative emission control system
- EGR system
- Heated oxygen sensor heater control system
- A/C control system

Engine and Emission Control System Flow Diagram





ECM Input / Output Circuit Diagram










Terminal Arrangement of ECM Coupler (Viewed from Harness Side)





Connector: C45






Connector: G04





Connector: C46