What does the yellow engine light on the car dashboard mean?
2 Answers
This is the ECU alerting that there is a fault in the engine. Below are the relevant details about the yellow engine light on the car dashboard: 1. There are two scenarios when the yellow engine light on the car dashboard illuminates. The first is when the car's power is turned on, and the vehicle performs a self-check. During this time, not only the yellow engine light but also other fault lights will illuminate and then turn off together, which is a normal phenomenon. The second scenario is when the yellow engine fault light remains on after the car is started. This indicates that the ECU is alerting to a fault in the engine, which is an abnormal phenomenon. 2. When the engine fault light on the dashboard is illuminated, you can try starting and turning off the vehicle three times in a row, or disconnect the negative terminal of the engine battery, wait for 30 seconds, reconnect it, and then attempt to start the car. After performing the above methods, check if the engine fault light on the dashboard is still on. It's important to note that when the engine fault light on the dashboard is illuminated, it usually cannot be manually reset. Typically, the light can only be turned off after troubleshooting with a 4S store's fault diagnostic tool.
I've been driving for several years, and that yellow engine light on the dashboard always makes me a little nervous when it comes on. It's called the Check Engine Light, indicating that the car's computer system has detected something wrong. Common causes are usually minor, such as a loose fuel cap letting air in and causing emission issues, or a faulty oxygen sensor that monitors exhaust quality. I've experienced it before—when the light came on, I immediately checked the fuel cap, tightened it, and waited a few minutes to see if it turned off. If it doesn't, it might be something more serious, like a bad ignition coil or a clogged catalytic converter, which can increase fuel consumption or even cause engine stalling. I recommend going to a repair shop as soon as possible to scan the diagnostic codes. Don't delay—spending a little money on a check is better than breaking down on the road. Safety first.
