I have a 2002 Ford Excursion, 4wd V10; as soon as turn the ignition on, I hear a rapid and continuous electronic CLICK CLICK CLICK that continues until several minutes after turning the key off. The exterior lamps and climate control lights blink with the CLICK CLICK CLICK. Turn signals and hazards work normally. After sitting in the truck with the key off and out for a couple minutes, the CLICKing stops, but begins again as soon as I open the door and then stops a few minutes after. The only way to stop the CLICKING is to remove the exterior lamp fuse. I have taken out the flasher relays one at a time with no change. I have taken out the delayed accessory relay with no change. WHAT in the world is the electrical problem here?

 

Have a 2000 Execursion V-10. Same issuue. Did you figure it out?