Question about 1990 Cadillac SeVille

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

I drive a cadillac seville 1990.I put my key in the ignition and the car turned on but the engine wouldn't start. It said anti theft system remove key and wait 3 minutes.I did and tried again it said again anti theft system wait 3 minutes.How can I cut the anti theft system off so I can drive my car? I went to the passenger door and put the key in, I locked and unlocked it 4 times then I put the key in the ignition and it started.I drove around and took the key out and tried to restart it.The driver's information system said "wait 3 minutes due to anti theft system"

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  • erik mickeriz Dec 24, 2008

    mine worked after re-starting 5 or 6 times... now it won't start period...... I tried many times but my caddy 1990 eldorado will NOT start. wait 3 minutes my ***..... Don't know what to do. Got a ride home and will need to move it tomorrow... any ideas?

  • pamela23 Mar 11, 2009

    Car was working great then one day it just would not start. Good mechanic put it on tester and it was saying the wait three minutes thing too. Was to do with anti-theft. Had to replace switch and have a new key coded. Was about $80 for those two things. Still has issues will start very good, then if I take the key out and put it right back in will not start. There are two little wires that run from the ignition switch down into the steering column one of those was broken. Is there anyway at all to shut this feature off? Don't think they had quite perfected the anti-theft computers in 1990!!!

  • dance4ya Mar 17, 2009

    My car did this exact thing to me tonight.
    I left it parked at work, and will return tomorrow.
    it seems as if i need to locate these 2 wires in the steering column. or something?
    whats ur best suggestion?

  • Anonymous Mar 13, 2014

    I have to wait 10 minutes to start the car with the key on

  • Anonymous Mar 19, 2014

    Anti theft is armed

  • Anonymous Mar 19, 2014

    I have bought a 2000 chevy s10 it has a bad engine I have to do a swap but the stereo has a anti theft audio system and I can not get the stereo serial number to get a code what do I do

  • Anonymous Mar 27, 2014

    Key in ignition won't come out



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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

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How can i enable the disabled starter on the 06 cadilac cts . someone try steel the car from the job. then we replace a motor and the the was stuck in the ignition i took the key out and the car wont start

Posted on Apr 14, 2015


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"Starting Disabled Due to Security Problem." on my 1997 Cadillac Seville SLS. Please tell me exactly what to do to override this message and successively start my Cadillac?

your anti theft device is activated,you need to lock and unlock your doors a couple times with the key fob,not the key,and then you need to put the key in the ignition and start it,if you dont have your key fob,call your car dealer to get a new one,they are programmed for each car only,you cannot bypass it.

Jun 09, 2015 | Cadillac Seville Cars & Trucks

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How do i reset anti theft alarm

Anon, 1990 Cadillac SeVille reset anti theft alarm.

Feb 13, 2015 | 1990 Cadillac SeVille

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Bypass for vats system

The security, antitheft, or passlock light is a visual indication that something in the car's antitheft system is failing. In most GM cars and trucks there is a hidden system that most people are unaware even exists. From the moment you put your key in the ignition, there begins a constant line of communication between your key's security chip or transponder, to the ignition's lock cylinder, and then to the car's TDM (Theft Deterrent Module). These 3 parts are in CONSTANT communication. If the key is in the ignition, then these parts are sending signals to each other. The security light illuminates when that signal gets broken, even just for a second. When the signal breaks, the car misinterperates this as an attempt at theft and goes into antitheft mode. The car thinks its being stolen or hotwired because it is not getting that signal from YOUR specific key. This is why the security light turns on and shuts down your vehicle.
This link may help you find ways to bypass this or fix it yourself.

Mar 25, 2013 | 1990 Cadillac SeVille

1 Answer

My 1990 cadillac seville says (starting disabled,anti-Theft system. wait 3 minutes then start.) But still does not start.

This happens when there is a break in communication between the chip in the key, the ignition, and the TDM (theft deterrent module). When these parts are not communicating properly, the antitheft system locks out the starter. Without the correct signal being sent completely through the system, the car considers it to be an illigitamate key and shuts down the starter to prevent HOTWIRING and eventually theft of your vehicle. Its a good system when it works properly. The problem can be as simple as a worn out key or as serious as a bad TDM which can run up to $1000. There are ways around this system for a cheaper cost, this link will help you troubleshoot the problem and educate you on the system. There are also some links to help you fix this yourself. This is a very common GM problem, so you are not alone in this.

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My 1990 Cadillac Seville says (starting disabled,anti-theft system. wait 3 minutes then start.)But still does not start.

You may have a failed ignition lock cylinder The wires that are attached to the lock cylinder are probably broke therefore the resistor value of the key pelet is not getting to the theft system module there fore without tha signal the car will not start. to repair the car will need a new lock cylinder and at least one new key

Aug 23, 2010 | 1990 Cadillac SeVille

1 Answer

92 cadillac seville ,starter disabled .how can i bypass the theft system

wouldnt be an anti theft device would it ,go to dealer with cars papers and have it reset

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hi my name edward I have a 1990 sevile and my anti theft light is on and my car wont stard could you help me. thank you

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The anti theft alarm system seems to have shut the car down. there is no response when the key is turned. no electrical at all. how do we get the car started? thanks. it is my older neighbor's car and she...

all general motors vehivles from 97-2005 contain an anti-theft system, called a passlock system. try this it will work on a malibu theft system. turn key on engine off for about 10 minutes,after 10 minutes turn key off. wait 15 seconds then try to start car. if it is the passlock system this will reset it.

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