Ford: 2000 Ford Explorer, frequent failures, body control module

Question
2000 Ford Explorer 4 wheel drive is making an alarm sound after the truck has started and sets for a minute.  It alarms in 3 second time for 20 times and then stops for a minute and starts again.  No visual alarm shows. nothing wrong with operation of vehicle.  How do I get the alarm to stop?

Answer
Hi

Does it do this with both keys?

Is there an aftermarket alarm installed?


What codes ,if any, are present in the body control module and the anti theft module?
Which engine is installed?

Has any aftermarket equipment been installed lately? ie: GPS, Stereo, speakers?

Does the antitheft light flash when vehicle is locked and armed?

There are some frequent failures in some fords of the wires inside the drivers door, but I am not sure yet


let me know what you find.