Engine Control System: ECM
FUNCTIONS WITHIN THE SYSTEM
ECM controls the engine system based on signals from the various control modules and sensors.
INDIVIDUAL FUNCTION WITHIN THE SYSTEM
- The ECM consists of the microcomputer and input/output connectors for signal and power supply.
- When the ignition switch is turned OFF, power is supplied continuously from the battery for maintaining the DTC and memory functions.
- The ECM includes a self-diagnosis function for simplifying trouble diagnosis.
- For supporting DIG (Direct Injection Gasoline), the ECM includes a high-voltage injector driver.
- The ECM contains an atmospheric pressure sensor.
INDIVIDUAL OPERATION
The ECM controls a variety of engine systems. Refer to System Description .
COMPONENT LOCATION
The ECM is installed on the underside of the vehicle front side of the left front fender protector.