My car wont start and its because of my anti theft on my 2000 ford expedition how can i reset it or does it need to be replaced

SOURCE: I just replaced the fuel

Unhook your battery for a 15 minutes and reconnect it.And then try.Disconnecting and reconnecting the battery resets the system and this resets the anti theft device too.-------- Another thing are you using right key for your car.If there are 2 keys try both keys one by one. But if this not reseting the device then it has to be done by a scan tool at ford dealer.They will reset the system as well as reset /reprogram the car key too.At dealer they charge approx $35 for this resetting.Its their service charge.This antitheft light starts flashing,if the vehicle detects there is parts replaced,without disconnecting battery or car got open with key or by non -programmed key.And this problem is faced by many other ford users too.In some case battery reset helps in other cases the car needs to be reset by scan tool at dealer.----------This will help.Thanks.Helpmech.

Jun Magno

• 175 Answers
• Posted on Jun 02, 2009

SOURCE: anti theft device for 1997 ford expedition

try using a spare key first

SOURCE: anti theft device for 97 ford expedition

you need to call a lock smith guy most of they have the machine to do it. or call arrown to se what shop has a ford scan tool
it has to be a scan tool only to do fords.

SOURCE: anti theft device for 97 ford expedition

try locking and unlocking the drivers side door with the key