How to Turn Off the Engine Malfunction Light?

[DiAaron]

Methods to turn off the engine malfunction light: 1. Start and turn off the vehicle three times consecutively; 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. Visit a 4S shop to use a fault detector for troubleshooting and then eliminate the issue. Reasons for the engine malfunction light being on: 1. Sensor issues: When the sensor is damaged, has poor contact, or the signal is interrupted, the car's ECU cannot accurately obtain engine data, which will cause the engine malfunction light to turn on; 2. Maintenance issues: If the owner does not perform regular maintenance, it will increase the burden on the engine operation, and the malfunction light will be the only way to remind the owner; 3. Fuel quality issues: If the owner does not add fuel according to the required specifications, it will cause engine wear over time; 4. Poor combustion of the air-fuel mixture can lead to engine carbon deposits or knocking issues: The engine's oxygen sensor detects this and reports it to the ECU; 5. Air intake issues: A dirty air filter can affect the car's air intake and cause blockages, which in severe cases will trigger the engine malfunction light.