The PATS - passive anti-theft system is a program (software ) programmed into the instrument cluster , PCM - engine computer , GEM module etc... Plus behind the plastic shroud on steering column where the lock cylinder is located the passive anti-theft transceiver module ! You better know what your getting into when you start to mess with anti-theft systems , you can render your vehicle useless if your not careful ! Need factory scanner to program keys , to read trouble codes , check data etc... If you change transceiver module it will need to be programmed ! FORD DEALER ONLY ! You can program more keys but need to have original two keys that came with the vehicle or you can't do it >
Passive Anti-Theft System (PATS) -Principles of Operation
PATS uses a specially encoded ignition key. Each encoded ignition key contains a permanently installed electronic device called a transponder. Each transponder contains a unique electronic identification code out of over 18 billion, billion combinations.
The passive anti-theft system (PATS), also known as SecuriLock ®, uses radio frequency identification technology to deter a drive-away theft. This system is known as SecuriLock® in North America, Safeguard® in the U.K., and PATS in Continental Europe. Passive means that it does not require any activity from the user.
The SecuriLock® System (PATS) is not compatible with non-Ford aftermarket remote start systems, which allow the vehicle to be started from outside the vehicle. These systems may reduce the vehicle security level, and also may cause no-start issues. If equipped, the remote start system must be removed before investigation of PATS-related, no-start issues.
Each encoded ignition key must be programmed into the vehicle powertrain control module (PCM) before it can be used to start the engine. There are special diagnostic repair procedures described in this section that must be carried out if a new encoded ignition key is necessary.
The correct ignition key is a different design than prior model years. Please consult the Rotunda Key Ordering Guide for the correct part number.
So , before messing with something you know nothing about , do yourself a favor , take it to the nearest FORD dealer !
So
SOURCE: 2001 ford taurus wont start and anti-theft light is blinking
Either you may be using a key that you had copied from the original or your chip went bad in your original key. Most of cars now a days have the key censor in the key so if it is the incorrect key it will not start your car or if it does not read that chip it will not start
SOURCE: 2003 Ford Taurus won't start after reconnecting the car battery.
you need to lock the doors wait 60 sec then at drivers door turn key to left 30sec then to right
SOURCE: How do I disarm anti theft on 2000 ford taurus
You can't the key has a chip inside it with out it the car will not start.
Testimonial: "Thanks for your time I think I'd better get my keys replaced "
SOURCE: my anti-theft light is on and my car want start
Try to close all the doors and windows and lock the car with remote or manually then open it with the key it should work .
SOURCE: 2001 Ford Taurus anti-theft
There's many questions that have to need to help you that I need the answers to. Is the security light on with the key removed and the doors closed? Is it flashing or on steady? When the car is aproached to start it can you just get in start it up and drive it away and then you have troble or do you have to do something different to get it to do it? Will it drive just fine sometimes? Does it ever drive with the security light completly off? Do your electric door locks work just like they always did? (all the doors lock and unlock and they truly work not just make the sound? Has the car been in a hard accident? Doe'a the door ajar light go outwhen the doors are closed? Has the battery or altenator been dead or worked on right when it seemed the problem started? Are ther other problems with the car? Is the check engine light work, and does it go out with the engine running? Does the engine run good as always? How long has it been doing this? Did it seem to start doeing this after something else happened even if it seems unrelated? Have you tryed to reset the system ( With the drivers window down and all the doors closed and the hood open, and the key out, remove the battery cable and take a break for awhile, before reconnecting the battery reach in the window and put in the key and turn the key all the way to start and let go. Now go around to the battery and connect it good ( one motion ). with out opening the door, turn the key off and remove it. lock the drivers door with the key twice ( don't unlock it any ) unlock the door with the key twice it should unlock all of the doors, Open the door get in close the door put in the key and start it like always. ) If this reset fixes the car your done. If this is not your regular key for the car that can be the problem too. If you have more than one key for the car try them all. one of them may work just fine. If thats the case take the car to your locksmith that says that he can program keys. have him fix you a key that works and a copy if you desire one.
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