What does it mean when the ECU light is on?
1 Answers
When the ECU light on the vehicle comes on, it indicates that there is a problem with the vehicle's controller. The ECU is the core control device used to manage the electric vehicle motor's startup, operation, forward/reverse movement, speed, stopping, and other electronic components. It acts like the brain of the electric vehicle, being a crucial component that primarily controls the motor's speed while also incorporating various protective functions such as under-voltage protection and current-limiting protection. Therefore, it is essential to inspect the circuit promptly. Below is an introduction to the ECU: The function of the ECU: The ECU can collect data through various sensors, process it, and then control the engine's operation via control mechanisms. Without the ECU and sensors, the engine cannot function properly. The principle of the ECU: The ECU operates by using sensors installed in different locations to monitor the engine's working conditions, including parameters such as engine speed, crankshaft position, exhaust temperature, and exhaust oxygen content. These signals are sent to a dedicated microprocessor, which processes them and issues control signals to adjust the engine's ignition timing and fuel supply optimally, achieving the desired best performance.