2002 Ford Explorer Security lite flashes

There is a problem with the factory security system. I hate to say, but the only place that has the proper test equipment is a dealer. If the light is staying on, it won't start.

I have Ford Explorer 2004 and the security light flash really fast but it won't start

Hello,

The security system is engaged here is a guide to help you see how to reset it

https://www.2carpros.com/articles/how-to-reset-a-security-system

Please let us know if you need anything else to get the problem fixed.

Cheers, Ken