What is an Electronic Control Unit?
An electronic control unit (ECU) is an embedded system in vehicle electronics that is responsible for controlling a specific function.
A vehicle could have + 100 ECUs, controlling functions that range from the essential (such as engine and, steering) to comfort (such as heated seats, and air-conditioning).
An ECU also control the security and access (such as door locks, and keyless entry), and passive (such as airbags), and active safety features (such as automatic emergency braking).
electronic control unit