Ecu refers to the electronic controller unit of an automobile, also known as the driving computer of an automobile. Its function is to control the driving state of the car and realize its various functions.

Structure-microprocessor (CPU), memory (ROM, RAM), input/output interface (I/O), analog-to-digital converter (A/D) and large-scale integrated circuits such as shaping and driving. It is also easy to identify from the appearance-there is a control element in the engine EFI system that is shaped like a square box, that is, ECU.

Common causes of ECU damage:

1. When welding and repairing the frame, the ECU wiring was not disconnected. Because when welding and repairing the frame, the change of current will produce extremely high induced electromotive force.

2. When the battery power is insufficient, directly use the direct SCR charger to charge, and the higher harmonics generated by the SCR circuit will damage the ECU.

Reference to the above content: Baidu Encyclopedia -ECU