1994 Cadillac DeVille Logo
Posted on Oct 08, 2008

1994 cadillace anti theft system

I go to start the car and the dash board reads that the ignition as been disabled due to the anti theft system in the car. Also a "Security" light keeps flashing. I tried disconnecting the battery and relpacing the fuse that powers the anti theft system and nothing works the car will not start. I do not have any aftermarket theft system at all. Is there a way to bypass this or disarm it?

  • 12 more comments 
  • Anonymous Jan 08, 2009

    1994 cadilac concours want start due to theft system

  • Anonymous Mar 13, 2014

    could a accident trip anti theft system

  • Anonymous Mar 15, 2014

    can you remove the anti theft system in a 2006 pontiac grand prix

  • Anonymous Mar 15, 2014

    i have a lx470 rx300 lexus truck and its not starting the lights coming on and radio and everything on the dash board at zero even the gas tank and i know its full i jus was driving it

  • Anonymous Mar 16, 2014

    My husband plugged in a phone charger in my lighter and the cord had a short in it wish blow my fuse for cig and radio, replaced all fuses car still won't start anti theft system won't disable. Please help I have tried everything

  • Anonymous Mar 17, 2014

    I changed the battery and now cant get the truck to run

  • Anonymous Mar 19, 2014

    put in new key cylinder and the anti theft light will not go off to de clear the system

  • Anonymous Mar 22, 2014

    The car has a after market radio in it and the key has been replaced. Will not start. the anti theft light does not go off. need to start car

  • Anonymous Mar 23, 2014

    fixed problem with flooding, car ran for a few hours then won't start. how can I check fuel pump for too see if it's the reason for not starting. how can I check anti-theft system or starter?

  • Anonymous Mar 26, 2014

    Car wont start

  • Anonymous Mar 28, 2014

    anti theft light also flashes when trying to start

  • Anonymous Mar 31, 2014

    complete car has NO electrical power. Replaced battery and still nothing.

  • Anonymous Mar 31, 2014

    I just got a 2001 Ford Focus and the little red light next to the hazard light triangle flashes both when the car is parked and also when it is in operation. Is this what it should be doing?

  • Anonymous Apr 01, 2014

    My Cadillac 2004 starts. but the anti- theft light illuminates on radio screen. how do I remove anti-theft

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  • Posted on Oct 12, 2008
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I just had this same problem with a '96 . do you have a vats key in your '94? you need to bypass the VATS system. read some of the blogs on this site and it will tell you how to do it. I fixed mine with a $2 resistor from radio shack.

  • Anonymous Oct 10, 2012

    i have a 1998 what number resistor do i need

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Can't get ignition starter switch to go on my 91 cadilac deville 870-688-8335

Do you see a light that says SECURITY on the dash somewhere? This can turn off your starter and disable your car. Read about it on this link with options on how to fix it yourself.

http://vatspasslockpasskeysecurityhelp.yolasite.com/

1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 Cadillac Deville with anti theft security problems VATS system
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Car is being disabled due to anti theft system

This is a common problem on GM vehicles. It all stems from that little black chip in your key. When the computer cant read that chip, the communication from chip to key is broken and the car goes into anti theft mode to protect itself from being stolen. (well, it thinks its being stolen) The problem is that you never know what the problem is. It could be the key, the ignition/lock cylinder, or the TDM (theft deterrent module) also known as the "computer". I found this link that helped me save my car when this happened to me. Alot of info on how the system works, symptoms of a SECURITY failure, and some DO IT YOURSELF solutions to fix this yourself for cheap.

http://vatspasslockpasskeysecurityhelp.yolasite.com/
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Read your manual or take it to the dealer. It sounds like it needs reset.....if this is a factory anti theft system, only the installer may be able to help you.
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Replace ignition lock cylinder and chip key. The wires have broken.
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yes method still works for my car. also a lock smith in your area can also do this for you. Its much more less expensive than replacing the ignition cylinder.
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the wire that goes to the ignition to the anti theft device is probably broken if you call a good locksmith they can go in through the steering column and fix it same thing happened to my 95 eldorado apparently cadillac designed the anti theft system to coincide with the ignition and is connected to the ignition with two wires that turn as the key is turned the wires twist and eventually they wear out
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