Component Parts: ECM
WARNING: This page is about a different car, the 2018 Infiniti Q60. However, it is still accessible from the selected car via links, so may be relevant.
ECM controls the engine in a comprehensive manner according to signals from various sensors and ECUs.
ECM has a gateway function for the drivetrain and other CAN communications. The function enables an ECU performing drivetrain CAN communication and an ECU performing CAN communication to communicate.
In addition, ECM contains the altitude pressure sensor.