What does it mean when a car displays ECU?
1 Answers
ECU stands for Electronic-Control-Unit, also known as the vehicle computer or onboard computer. Below is an introduction to ECU: Composition of ECU: Similar to a regular computer, the ECU consists of a microprocessor (CPU), memory (ROM, RAM), input/output interfaces (I/O), analog-to-digital converters (A/D), as well as large-scale integrated circuits for shaping and driving. Functions of ECU: It has self-diagnosis and protection capabilities. When a system fault occurs, it can automatically record the fault code in RAM and implement protective measures by reading substitute programs from the inherent programs mentioned above to keep the engine running. At the same time, these fault messages will be displayed on the dashboard and remain illuminated, allowing the car owner to promptly identify the issue and drive the car to a repair shop.