Functions Within The System
WARNING: This page is about a different car, the 2020 Infiniti QX50. However, it is still accessible from the selected car via links, so may be relevant.
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 PARTS LOCATION
The ECM is installed on the underside of the vehicle front side of the left front fender protector.