Ignition what ? Switch ,Ignition lock cylinder ? New keys ? do they have the transponder pellet in the head. Do you have a security lit flashing when trying to start the vehicle ?
SECTION 419-01: Anti-Theft - PATS
1999 Mustang Workshop Manual
GENERAL PROCEDURES
Procedure revision date: 11/06/1998
Key Programming -Erase All Key Codes and Program Two Keys
Special Tool(s)
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New Generation STAR (NGS) Tester or equivalent
418-F048 (007-00500)
NOTE: This procedure is used when a customer needs keys programmed into the system and does not have two programmed ignition keys available. This procedure is also useful when programmed ignition key(s) have been lost or the ignition switch assembly has been replaced, and it is desired to erase key(s) from the passive anti-theft system (PATS) memory.
NOTE: This procedure will erase all programmed ignition keys from the vehicle memory and the vehicle will not start until two keys have been reprogrammed to the vehicle.
NOTE: Two PATS encoded keys with the correct mechanical cut must be available to perform this procedure. One or both of them may be the customer's original keys.
NOTE: If additional keys are to be programmed, refer to Key Programming - Program a Key Using Two Programmed Keys. If the remaining keys are with the customer and are not available with the vehicle, then instruct the customer to refer to the Owners Guide under the "Programming Spare [SecuriLock ® (North America), Safeguard ® (U.K.) or PATS for all other markets] Keys Procedure" for instructions on programming the remaining keys.
Turn the ignition switch to OFF and disconnect NGS.
You'll need to take to the dealer
SOURCE: anti theft device for 97 ford expedition
I have 2007 expedition XLT and the interior light blinking all the time what the solution ?
SOURCE: anti theft system
The chip is in the key. Either the key has lost it's program or the transceiver is not recognising the key. Try another key if you have one.
SOURCE: how do you reset the anti theft system
Try disconnecting your battery cables then wait about 10 minutes. The computer should reset itself. Reconnect the wires to the battery. It is normal for the theft light to blink about every 5 seconds when the ignition key is out or in the off position. This means the system is armed and working properly. Hope this helps. God bless!
SOURCE: replaced ignition switch in 1998 ford mustang.
take the chip out of the old key and then fit it in the new key ,or tape it to teh transponder behind the covers on the steering column
SOURCE: how to by pass a 1996 ford explorer anti theft system
Check to see if one of the larger fuses in the Power Distribution Box needs to be replaced. Fuses say: FOAB 14B192-AA 5H11 0301 or 0302. When it happened to the person that I bought it from, he said he switched one out for the other, and then it started. It's an intermitten problem with mine, and I haven't figured it out yet, but I am hoping that's all it is.
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