How to Clear the Yellow Engine Light?
2 Answers
Methods to clear the yellow engine light: 1. The owner can try starting and turning off the vehicle three times in a row; 2. Turn off the engine, disconnect the negative terminal of the battery, wait for 30 seconds, reconnect it, and then try to start the engine; 3. After completing the above steps, check if the engine warning light on the dashboard is still on. Note: When the engine warning light on the dashboard is illuminated, it cannot be manually cleared. Typically, the issue needs to be diagnosed and resolved at a 4S shop using a fault detection tool before the light can be turned off. Below are the common reasons for the yellow engine light on the dashboard: 1. Sensor issues; 2. Maintenance problems; 3. Fuel quality issues; 4. Poor combustion of the air-fuel mixture; 5. Air intake problems.
As a DIY enthusiast who frequently works on cars, I absolutely cannot ignore or simply clear the engine's yellow warning light. First, use an onboard OBD diagnostic tool to plug into the port and read the fault code. Common issues like P0171 indicate a lean fuel mixture. After reading the code, investigate the cause based on it—for example, replace the spark plugs if they're burnt out, or clean and replace the air filter if it's dirty. Clearing the code is as simple as a few clicks in the tool's menu. However, the light turning off doesn't mean the problem is resolved; if not fixed properly, the light will come back on after a few kilometers. Regular maintenance of the fuel system and filters can prevent the light from coming on. Avoid driving the car hard to prevent further engine damage and increased repair costs.
