Question about 1997 Ford Expedition

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I change the ignition switch and now wont start the theft light keep flashing

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Your fob system needs programming. There is a chip in your key that has to be re/programmed to your vehicles anti-theft system. You may call a special locksmith or tow to dealer to perform this. Hopefully this helps

Posted on Jul 24, 2009

  • chickthatknewthemost Nov 27, 2012

    also, you can take the old key with chip to ace, they will program and cut a key for 75

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Ignition switch improperly wired

Posted on Jul 24, 2009

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Is there a little red light on the top center of dash pad ? Does it flash fast when trying to start the vehicle ?
PATS uses a visual theft indicator located on top of the instrument panel. This indicator will prove out for 3 seconds when the ignition switch is turned to ON or START under normal operation. If there is a PATS problem, this indicator will either flash rapidly or glow steadily (for more than 3 seconds) when the ignition switch is turned to ON or START. PATS also "flashes" the theft indicator every 2 seconds at ignition OFF to act as a visual theft deterrent.

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The theft light flashes when the is off If it is flashing when the key is on I would think you don't have power in the correct position in the ignition.Check fuses and wiring.

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SOUND LIKE THE THEFT SECURITY PROBLEMS. MOST OF THE TIME.THE IGNITION KEYS OR IGNITION SWITCH KEY LOCK CYLINDER WORN WHERE THE BCM AND PCM DONT RECOGNIZE KEY OR SWITCH SIGNAL.SO THE BCM AND PCM WILL GO IN THEFT SECURITY MODE.THE DEALERSHIP WILL HAVE TO FIX.BECAUSE IF THE KEYS , IGNITION SWITCH AND LOCK CYLINDER AND BCM HAS TO REPLACED.THEY WILL HAVE TO BE REPROGRAM USING DIAGNOSTIC EQUIPMENT. NOT A HOME FIX.YOU WILL NEED TO GET FIX SOON AS POSSIBLE.BECAUSE FAULTY SECURITY THEFT CODE WILL SHUT DOWN VECHICLE FUEL SYSTEM WHILE DRIVING OR IT WILL GET TO A POINT WHERE CAR WONT START NO MORE.THIS FIX WILL COST ABOUT $600.00.

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Hi I own A 98 Chevy Malibu, my ignition locked n i had to put a new ignition switch in, well now my cars tellin me Something Theft Service. Im wonder what I need to do? Iv unhooked battery for hours ect...


You need to reset the theft system. To do this, try to start it. It should start and die. Then after it dies and the theft light is flashing, leave the key on for 10 minutes. After 10 min, the theft light should go out. After the theft light goes out, turn off the key. Count to 5, then restart it. Then it should work.

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The car wont start, the brake pedal is locked like the anti-theft is active, the anti theft light is flashing when the keys are in the ignition. when i try to turn it on it doesnt turn over, just makes...


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My theft light is flashing but my 1997 expedition wont start.The vehicle turns over but just don't start.


ANTI-THEFT SYSTEM Passive anti-theft system
Your ignition key has a unique imbedded transponder which engages engine electronics and allows the vehicle to be started. Without the use of your special ignition key, the vehicle will not start.

During each vehicle start, the coded key is read by the anti-theft system. If the key’s ID code matches the code in the anti-theft system, the vehicle is enabled to start.

Anti-theft system
Briefly illuminates when the ignition is turned to the ON position to verify that the passive anti-theft system is operating properly.

Also, its possisble that tou have actovated the fuel pump switch.

CHeck it.

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Does the security light flashing after it dies? Will it stay running if you keep your foot on the gas?

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1 Answer

Passlock


on the ignition key you have to change the ignition baril put new one in try to start it wont leave the key on theft light will flash for 20 minute turn key off and start it thanks pierre

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