Question about 1998 Cadillac DeVille

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How do you reset the security on a 1998 cabillac deville

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This link might help you.

Posted on Feb 08, 2012

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1998 cadillac deville will not start when key is put in

The security, antitheft or lock picture/icon 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 misinterprets 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 explains it pretty well.

Dec 03, 2013 | 1998 Cadillac DeVille

1 Answer

The Security system code keeps coming on says car may not restart. Is there a way to disarm this or reset it ?

you will have to go to a shop that has the tool to reprogram the security system with all the keys that are being used so they can be reprogramed to the security system.

Sep 01, 2011 | 1998 Cadillac DeVille

1 Answer

How do I disable, remove completely the factor security alarm? I have a 1998 Cadillac Deville. I just want to how to completely remove it because it is locking me out constantly. My husband put in a new...

The only way to remove a factory security system is to remove the entire car and buy another one. The security system is an integral part of the engine management system. If you disable it, you will not be able to start your engine.

Feb 22, 2011 | 1998 Cadillac DeVille

1 Answer

My 1998 cadillac deville wont start it says starting disabled on the dash how do i get it to start

Hello, You probably have failed (broken) wire(s) coming from the ignition lock cylinder to the security system. To repair you need to replace the ignition lock cylinder, a new key with the same resistor. no programming required. Hope this helps

Sep 06, 2010 | 1998 Cadillac DeVille

1 Answer

How to reset AC on 1998 Cadillac Deville after servicing.

you can reset the computer by disconnecting the positive cable on your battery for 5mins. only be sure that your radio does not have to be recoded afterwards. refer to owners manual. resetting your computer will reset all codes even if your check engine light is on,,but depending what's wrong it will not repair everything! i hope this helps!

Aug 25, 2010 | 1998 Cadillac DeVille

1 Answer

Can a security issue preventing the 1998 deville from starting be fixed?

Yes it can turn your key to ON not crank for 12 minutes then to off for 30 seconds then to on for 12 minuters then off for 30 seconds then to on for 12 minutes and then off for 30 seconds. Be sure NOT TO crank the car at any time during the procedure. after the last off for 30 seconds start up your car and it should be reset.

Apr 09, 2010 | 1997 Cadillac DeVille

1 Answer

Where the reset button for a fuel pump in a 1998 cadillac deville is located

There is none. On Ford vehicles there is an inertia switch that one can push to reset the fuel pump in the case of a collision or bump in the road.

Apr 06, 2010 | 1998 Cadillac DeVille

1 Answer

Need to reset the oil life meter. Can you tell me

turn on the ignition a depress the gas peddle three times then turn fey off and on again that should do it.

Oct 20, 2009 | 1998 Cadillac DeVille

1 Answer

1998 cadillac deville

try taking off your fuse panel cover, there should be a reset button in there.

May 06, 2009 | 1998 Cadillac DeVille

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