Question about 1997 Cadillac DeVille

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1997 Cadillac Deville, 8 cylinder, northstar engine. started w dash was displaying "anti theft - car may not restart" I replaced the BCM, and car will still not start.

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Bcm has very little to with the anti theft. you need to de active the anit theft

Posted on Dec 03, 2012

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6ya6ya
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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: 1997 cadillac concourde deville, car wont start

Try to reset the p.c. by unpluging the batt. for 10 min that should do the trick.

Posted on Apr 05, 2009

  • 1 Answer

SOURCE: 1997 cadillac deville anti theft

anti theft system is on and car want start97deville how do you reset

Posted on Nov 21, 2010

jwyatt816
  • 3 Answers

SOURCE: 2000 Cadillac Deville DTS is in anti- theft mode

you can reset the system by turning key to on position for 5-10 mins and then try starting it but its probably a short or grounding prob try the engine to chassis ground

Posted on Oct 03, 2008

  • 45 Answers

SOURCE: anti theft devise is keeping me from putting in

you have to take the new ignition switch alone with your registration and the car to your Cadillac dealer and they will explain how ,and how much it will be, to re code and reprogram your p.c.m. so it will recognize the new switch. good luck to u, hope we helped!

Posted on Mar 09, 2009

  • 2 Answers

SOURCE: '97 Cadllac Deville Concours reading "Anti Theft System Problem"

make sure your key is clean try again, if not the system will tell you to wait 3 mins while key is in ignition this will reset the system and dash will tell you to start vehicle, you should be fine after that, common cause dirty key!!!!!!!!

Posted on Apr 20, 2009

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Dec 29, 2015 | Cadillac Cars & Trucks

1 Answer

I have a Cadillac deville 1998 v8 northstar. I had my alternator rebuilt and got a new battery. Vehicle started once but dash read battery not charging. Took vehicle to O'Riellys Battery tested bad. H


When you replaced battery you activated the system. Need to read owner manual and see if it tells how to deactivate it. You may need to contact dealer to deactivate it.

Jun 04, 2017 | Cars & Trucks

1 Answer

Theft security problem


Usually it means the computer is not accepting the chip in your key.
It can be the key, the sensor in the lock cylinder, or something in the security module or computer.
You might try another key or lock and unlock the driver's door with the key.

Jul 27, 2013 | 1998 Cadillac DeVille

1 Answer

Dash reads theft system problem car may not restart on my 1997 cadillac deville


Help 4 1997 Cadillac Deville help: 1-800-333-4CAD / http://www.cadillac.com/cadillacjsp/footer/emailus/emailus_owners.jsp
if you need a auto tool you can click here: great tools

Oct 26, 2012 | 1997 Cadillac DeVille

1 Answer

I have a 1997 deville. was running. dash display says theft contol problem car may not restart. The car will run on starting fluid and die when the fluids gone.


Hi. You most likely have a ignition lock cylinder wiring problem. To repair you need to replace the ignition lock cylinder, a new key with the correct resistor. Hope this will help

Sep 06, 2010 | 1993 Cadillac DeVille

2 Answers

'97 Cadllac Deville Concours reading "Anti Theft System Problem"


I had the same problem. trying to save money i took it to several auto places who thought they could fix it..... after a lot of money and my 800.00 after market alarm was taken off i had it took to the dealer . They fix it in two hours they put in new switch and key haven't had any problems sence.

Apr 13, 2009 | 1997 Cadillac DeVille

1 Answer

1997 cadillac deville delagance - anti theft device


I've got a 97 deville d'elegance that has issues similar to these. Last year the red anti-theft light came on and the car wouldn't start-took it to the dealership and they replaced the PCM? (the main brain for the system) for $900...the guy told us the wiring was so corroded he didn't want to mess with it much. Today the message started flashing on the dash that says "anti-theft problem/ car may not restart" but it still turned over in the driveway a couple times so I am hoping I can reset it. The wiring system is jacked and will probably need to replace the wiring harness completely. Doubt its worth it. Not a secure feeling with 2 babies in the back seat in the middle of winter....

Mar 30, 2009 | 2001 Cadillac DeVille

1 Answer

Anti theft devise is keeping me from putting in new ignition switch. how do i change or fix this? 1997 cadillac deville/northstar


you have to take the new ignition switch alone with your registration and the car to your Cadillac dealer and they will explain how ,and how much it will be, to re code and reprogram your p.c.m. so it will recognize the new switch. good luck to u, hope we helped!

Mar 08, 2009 | 1997 Cadillac DeVille

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