How do I troubleshoot an engine light on my Ford Mondeo?

I recently noticed the engine light on my Ford Mondeo and I'm not sure what to do. It's been on for a few days now and the car seems to be running fine. What could be the issue and how can I fix it?

Firstly, you should check your gas cap to make sure it's properly tightened. A loose gas cap can cause the engine light to come on. If that's not the issue, you may need to take your car to a mechanic to run diagnostic tests and determine the cause of the light.

You can also try disconnecting the negative battery cable for a few minutes and then reconnect it. This will reset your car's computer and may turn off the light. However, if the light comes back on, you should take it to a mechanic for further inspection.