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Posted on Mar 12, 2009

Car wont start because of theft system - 1998 Cadillac DeVille

  • 1 more comment 
  • scungaza Mar 19, 2009

    recurring message security problem. car will not restart

  • geoffman1275 Mar 28, 2009

    my car wont start. It says starting disabled, theft deterrent activated or something close. this all ahppened after My girlfriend got a key made at ace hardware and tried it in the ignition. Then she called me and I told her to use the old key that worked fine and that one no longer start the vehicle. Now what??? Please help with any way to get this started

  • Anonymous Apr 11, 2009

    My wife drove the car this morning and when she was leaving a couple hours later, the car turns over good but does not fire. The security light is flashing but I am not sure if flashes all the time before it starts.

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  • Contributor 45 Answers
  • Posted on Mar 29, 2009
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Joined: Feb 19, 2009
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Hello; the one thing you can try before the dealer,(and if that is the the way you may have to go,and not to costly)is to remove both battery cables,the negative first then the positive, reinstall the same way, leave them off for a good 30 min's this sometimes works, lets the p.c.m readjust itself, like i said if this wont do it,the dealer can,with your paper work on the car, hope this works for you,good luck to you....

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Related Questions:

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1answer

Why wont my alarm reset in my 1998 chevy blazer the security system is killing the fuel and i cant get it to run it starts and dies imeaditly

I don't think the anti-theft is the problem.
On GM vehicles, the anti-theft system will not allow the engine to crank, or get fuel or spark. If it cranks, you have a different problem.
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Theft light is on & car wont start

theft system is locking down the computer on your exoedition
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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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Is reading theft system and wont start

Try cleaning your key off... those keys have security chips and if you get the oily or dirt on them your car wont start. Or try using a spare key if you have one... Good Luck!
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99 chevy cavalier theft system light on steady, car wont crank.

My 2000 cavalier has done this for 6 months. You take your key out then open your door, wait ten minutes and the system resets itself and the car will start-annoying you bet!!!
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Car wont start. computer says its the anti theft device

is their a button you have to push be4 starting the car?
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Wont start do to theft system

You can not, the anti-theft circuit can not be bypassed. Your forced to bring it to the dealer.
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Car wont start

as long as security theft system is on, car wont start.

don't you have the remote key to disable the theft system?

you can bypass security but you have to have wiring experience and splicing before you can proceed.

tnx 4 using fixya,

drcool
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