Reset check engine 1993 Hyundai excel?

To reset the check engine light on a 1993 Hyundai Excel, first, disconnect the negative terminal of the battery and leave it disconnected for about 10-15 minutes. This will reset the vehicle’s computer system and clear the check engine light. After reconnecting the battery, start the car to see if the light has turned off. However, if the light persists, it may indicate an ongoing issue that needs to be diagnosed.