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Had a locksmith come out and he tryed to reset my key to my theft system and it says it already programed and the truck will run for a week then the anti theft system act's up again and truck will not start for like three days

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It will be nearly be impossible to open the car lock without seeking the help of car key transponder cutters, as they use specialized techniques for re-keying even the most obstinate car locks.

Posted on Oct 04, 2013


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Posted on Jan 02, 2017

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SOURCE: How can I bypass a anti auto theft system on my 1990 cadillac seville?

I Have A Seville 1990, When That Happen To Me I Got The Inginion
Replaced Problem Solved. What Is Happening Is Your Key Has A Chip And That Chip Is A Resister And When The Valve Is Not Sented To The Computer It Disengages the Fuel Pump And Than Tells You To Wait. Soon All That Will Happen Is You Will Get The Wait 3 Mins And It Will Never Start, A Good Locksmith Can Take Care Of This For You And That Will Save You Some Money. Cause If You Go To The Dealer Ouch They Will Hit You Up. But I Asure This Is How It Will Happen Cause It Is How It Happen To Me
And Sorry There Is No By Passing The Computer

Posted on Dec 25, 2008

  • 1 Answer

SOURCE: 1997 ES 300 How to reset anti-theft system when car won't start

With the doors shut, insert the key into the drivers door lock. Lock and unlock the door 5 times. This should reset the system. If that doesn't work you should contact a qualified repair shop.

Posted on Mar 20, 2009

  • 8 Answers

SOURCE: 1997 toyota 4runner anti theft system prevent ignition. How do we deactivate anti theft system.

you have to call tyota and thet have to send you a new computer

Posted on May 25, 2009

  • 175 Answers

SOURCE: anti theft device for 1997 ford expedition

try using a spare key first

Posted on Jun 02, 2009

  • 708 Answers

SOURCE: reset my anti theft system so my truck will start

Normally, you would insert the key in
the drivers door, turn left, then right
to disarm and reset it. If yours is malfunctioning,
you would either need to contact Ford to reset it, or
you can disable it for good by doing the following:

The FACTORY ALARM DISARM WIRE IS green/purple |-|,
Located in the drivers door harness or the
drivers side kick panel.

Once Located, splice into either wire with
a simular guage wire, and put it to
a solid chassis ground. This terminates
the alarm functions entirely.

However, at this point, this car would be exceedingly
easy to steel, so I suggest you get an aftermarket
alarm system to protect it from here on in.

Posted on Oct 07, 2009

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1 Answer

How do I reset the anti theft system in my Blazer after installing a new ignition and key?

You need to have a new key cut using the same blank that fit the truck before. The key blanks have a chip that the computer "reads" to allow the engine to start. There are about 10 different chips.
A locksmith or the dealer should be able to read the old key to find the new blank that matches it.

Dec 02, 2014 | 1999 Chevrolet Blazer

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I have a 2001 mercury mountaineer that was given to me from my grandparents my problem is that I do not have the original keys or the key fob that came with the truck. I had a lockSmith comes out and try...

If a locksmith can't access the body computer, you'll have to tow it to a dealer. They have a scanner that will access the computer to allow you to add a new key code. Under normal conditions you need two keys already coded to the vehicle to be able to add another key.
The system is embedded in the body computer and the instrument cluster so there is nothing you can remove.

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Changed ignition in a 1998 chevy malibu and the car will start then it will stall like it locks up but when u turn key off then try an start it it does the same thing it has a p-1626and a p-1610 codes when...

If you replaced the lock cylinder and it came with a new key, and the car has a factory anti-theft system, the new key has to be programed to the anti-theft module. If the new key does not have a small + sign stamped into it, it does not have the transponder built into it and you will need a new key that has the transponder and have it programed. Just cutting a copy of the key is only half the job Usually they will not start at all...that's the whole point of the anti-theft thing. The codes will not reset because the problem has not been fixed. Most locksmiths can do this for about fifty bucks, but not a hardware store that makes keys, or yes...the dreaded Chevy dealer. Your code reader does not have this programing capability.

Mar 12, 2014 | 1998 Chevrolet Malibu

3 Answers

I accidentaly broke my key for my 2000 Ford Explorer,and I changed out the ignition and collumn the car turns over but it wont start.But my anti theft is activated .How do I disable or turn off the an

The old key may have an induction chip in to deactivate the anti theft system. Does it have a red insert (chip) in the key handle? Get the old key and place it as close to the ignition barrel as possible. Seen this done on a number of occasions to save paying for a key reprogram.

Jan 01, 2014 | 2000 Ford Explorer

1 Answer

How to bypass the anti theft system in a 1999 Ford Expendition?

This is a old Pats system on this vehicle... No way to deactivate it

You can cut a new key and do what others have hinted at to program a new key (I don' t know the exact procedure as I have the test tool to program it)

The system, if untampered with, should allow you to restart the car with the correct Pats key after waiting 30 seconds. IF it was tampered with by the locksmith, he might have undone something or your key is bad and if the Theft light is blinking you are basically screwed short of getting a PATS key cut at the dealership and programming it with the directions found on the net (and yes I've heard the Non Ford scan tool way is roughly 1 hour)

At least you are lucky.. 1999 and after you would be SOL due to locksmiths not having the back door to program anymore..

May 31, 2012 | 1999 Ford Expedition

1 Answer

99 f150 has theft light flashing and I don't have an original key. What do I do to reset it

You don't reset it, it will reset on it's own once you get a key made and programmed by a professional locksmith.

Jan 18, 2018 | 2007 Ford F-150 Harley Davidson

1 Answer

I put a new ingntion in my truck and set the theft system on how do i reset it.. my truck will turn over but wont start the truck is a 2003 ford f150 v6 4x4 manual

Does the anti theft light go on ?? Cranks but wont start right? If so you need to go to the dealer because your vehicle has a chip in the key. It cannot be programmed locally. If you go to a real good locksmith he might have the tooling to do it. Good luck it normally runs around 1 to 200 bucks! Sorry for the bad news!

Jul 30, 2010 | 2003 Ford F150 Regular Cab

1 Answer

Lost keys to truck got new ignition with keys but still wont start 99 f150

The 1999 F-150 has a PATS ( Passive Anti Theft System ), where te keys need to be programmed to the truck.

For the owner to do this, you need 2 keys ( not 1 key and a clone of the same key ) or you need to have a higher end mechanic / dealer or a PATS programmer locksmith to program the new keys.

The truck basically thinks it is trying to be stolen, and the PATS system is stopping it.

Mar 14, 2010 | 1999 Ford F150 Regular Cab

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I have a 2006 Chevy Malibu, changed out ignition switch several months ago and had to have theft system reset. Yesterday, went to store, locked car as usual came back to car and now it cranks but wont...

try another key first, if not some locksmiths have the computers to reprogram. call dealer tellem they just programed and that the car wont star again,good luck!

Oct 02, 2009 | 2006 Chevrolet Malibu

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