What does it mean when the car prompts to check the engine system?

[SabrinaMarie]

When the car prompts to check the engine system, it indicates that there is a fault in the engine. When such a problem occurs, these faults generate a series of codes, which are read by the ECU and displayed as an indicator light on the dashboard. If the engine emission fault light remains on after the car has started, it means there may be a fault in the engine. Solutions for the engine exhaust system fault light being on: 1. Start and turn off the vehicle three times in a row, or disconnect the negative terminal of the engine battery, wait for 30 seconds, and then reconnect it. After performing the above method, check if the engine fault light on the dashboard is still on. This method only applies to false faults in the engine; 2. The engine exhaust system fault light is mostly caused by the damage to the oxygen sensor in the three-way catalytic system or the poisoning of the three-way catalytic converter due to the quality of domestic fuel. If the light comes on while driving, immediately reduce speed and drive to the nearest maintenance service station for inspection and repair.