It sounds like your cars computer forgot what keys are supposed to start the car. In order to get the keys back into the cars computer, you need to either have the car towed to a dealer, or have a trained and equipped lock smith come to the car, this is not a do it yourself type job as it requires a proprietary computer system and connector.
The second generation Passive Anti-Theft-System (PATS) found in this year Cougar requires dealer reprogramming if you have less than two working keys. I recommend making sure that you have at least 3 programmed keys to the car, this way if you lose one, you can still program your own key.
where is the anti theft located on a 2000 mercury cougar
thanks
On a 2000 Mercury Cougar : That's your Anti-theft system status light
Anti-Theft Module located on a 1997 Lincoln Contintental?
Where is the theft deterrent module on 1995 Buick Regal
Anti theft module on Ford van is installed as a security measure. This will entail a cut-off and an alarm system which safeguards the van from possible theft.
In order to disarm the anti-theft system in a 1999 Cougar, a scan tool must be used. The scan tool works as an interface which will open the security functions needed to disarm the anti-theft system.
Anti-theft module, 1985 Corvette. Under dash on passenger side next to the heater control valve.
hello ! were is the theft control module on my 94 camaro
The easiest way to bypass the theft deterrent module is to remove the fuse. The location of the fuse can be found on the inside cover of the fuse box.
ignition interlock device (IID) the ingition key has a coded computer chip that when you start the car the chip must match the car or itll shut off
In a 1998 Ford Explorer : The RAP module ( Remote Anti-theft Personality module ) is used with your anti-theft system and your keyless remotes ( each vehicle with keyless entry has it's own factory code )