What is ECUM?

ECUM typically refers to the Electronic Control Unit Module. This is a generic term for an embedded system that controls one or more of the electrical systems or subsystems in a vehicle. ECUMs are found in virtually all modern automobiles and control a wide range of functions, including engine management, transmission control, anti-lock braking, airbag deployment, and various body control functions. They receive input from sensors, process the data, and send output signals to actuators to control the system they manage. Modern vehicles can have many ECUMs networked together to allow different systems to interact with each other.