Question about 1998 Cadillac DeVille

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NEED TO KNOW HOW TO FIX PROBLEM....

Theft system came on and will not start car and gives me 3 minute count down......do I change the ignition switch ..will this fix the problem?

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  • LOPJX018 Apr 22, 2009

    it is a 1997 cadillac deville d elegance

  • Eric Heifetz
    Eric Heifetz May 11, 2010

    First thing to do is try a 2nd key after waiting 3 min

  • david doerfer May 11, 2010

    what year cadillac

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First i noticed my interior lights were coming on by themselves when i wasn't even in the vehicle.then the theft problem alert start showing up in dash.now i have to disconnect battery because my trunk and gas door will open if i don't connect the battery.

Posted on May 04, 2009

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Replace the lock cylinder the wires have broken and get a new chip key if this is the year and model you have since you left that part out.

Posted on Apr 28, 2009

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1 Answer

2000 grand am security light comes on can i bypass that with remote start


Are you the one who bought the vehicle new ? Replaced ignition switch or the ignition lock cylinder ? No , sorry, but a remote start will not by pass anti-theft system .

The vehicle theft deterrent system is designed in order to prevent vehicle theft by disabling the fuel injectors unless the lock cylinder is correctly engaged by a mechanical key. The theft deterrent system uses the following 4 components for theft prevention:
• The lock cylinder
• The ignition switch
• The body control module (BCM)
• The powertrain control module (PCM)
When starting the engine, the PCM searches for a password from the BCM through the Class 2 serial data circuit. If the password is not recognized or not present, the PCM will disable the engine. Two modes of tamper detection are provided:
No password received
The engine will start and stall quickly. SECURITY telltale will flash on the instrument panel cluster (IPC) and then stay ON steady.
Incorrect or disable password received (More than 3 invalid passwords are received)
The engine is disabled for at least 10 minutes and the SECURITY telltale will illuminate solid on the IPC during the 10 minutes.
After the vehicle has passed theft detection, the PCM will continue normal operation.

Jan 09, 2017 | Cars & Trucks

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I have a new battery and alltinator but my car still wont start


Have the starter tested! Check the cables to see if they are in good condition. Check the cable that goes to the starter. They all need tight connections.Don`t know the year,make and model. but older cars have a solenoid switch that is not on the starter.

Oct 09, 2012 | 1998 Cadillac Eldorado

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What does it mean when it says service theft system?


Hi.

A problem with the theft system has triggered the service test system light.

The best thing to do is going to the nearest dealer place and performing a theft system learning, some theft system malfunctions may end up with the car not starting.

Here the learning procedure:

  1. Pit ignition ON keeping engine OFF.
  2. Turn key to start the engine, then release the key to ON position (the car will not start).
  3. Wait for the security info to end. It will last about 10 minutes.
  4. Put ignition OFF the ignition, and wait 5 ten seconds.
Repeat steps 1 through 4 two more times f 3 times in less than 30 minutes

The vehicle will be ready to relearn the Passlock Sensor Data Code next time the ignition is turned from OFF to START (crank )
Turn the ignition OFF before attempting to start the vehicle and start the engine so that the vehicle will learn the Passlock data again

You may need to jump the battery or to use a charger as the procedure may drain the battery.

If that does not work go to the dealer. They will scan and reset security system and perform a re learning using a diagnostic tool.

Sep 02, 2011 | 2001 Cadillac DeVille

1 Answer

System show theft system on wait three minutes. It shows the count down and when the three minutes are up shows star car, but when I turn the key it starts all over again. The does it's normal thing but...


your key may be worn there a small sensor on your key that the ignition senses. the ignition tumbler may be worn out to. try using your extra key. you may have to have ignition key and tumbler replaced and reprogrammed to your vehicle. hope this helps

Feb 02, 2011 | 1990 Cadillac Eldorado

1 Answer

I 'v been this roblems over 3 years and spent so much money to fix it. My 1999 Oldsmobile Alero wont start with security theft light flashing. I have to wait for 10 minutes and then if i lucky it may...


SOUND LIKE THE THEFT SECURITY PROBLEMS. MOST OF THE TIME.THE IGNITION KEYS OR IGNITION SWITCH KEY LOCK CYLINDER WORN WHERE THE BCM AND PCM DONT RECOGNIZE KEY OR SWITCH SIGNAL.SO THE BCM AND PCM WILL GO IN THEFT SECURITY MODE.THE DEALERSHIP WILL HAVE TO FIX.BECAUSE IF THE KEYS , IGNITION SWITCH AND LOCK CYLINDER AND BCM HAS TO REPLACED.THEY WILL HAVE TO BE REPROGRAM USING DIAGNOSTIC EQUIPMENT. NOT A HOME FIX.YOU WILL NEED TO GET FIX SOON AS POSSIBLE.BECAUSE FAULTY SECURITY THEFT CODE WILL SHUT DOWN VECHICLE FUEL SYSTEM WHILE DRIVING OR IT WILL GET TO A POINT WHERE CAR WONT START NO MORE.THIS FIX WILL COST ABOUT $600.00.

Dec 23, 2010 | 1999 Oldsmobile Alero

2 Answers

Hi I own A 98 Chevy Malibu, my ignition locked n i had to put a new ignition switch in, well now my cars tellin me Something Theft Service. Im wonder what I need to do? Iv unhooked battery for hours ect...


You need to reset the theft system. To do this, try to start it. It should start and die. Then after it dies and the theft light is flashing, leave the key on for 10 minutes. After 10 min, the theft light should go out. After the theft light goes out, turn off the key. Count to 5, then restart it. Then it should work.

Nov 07, 2010 | 1998 Chevrolet Malibu

2 Answers

Buick does not start when theft system comes on


I had the same problem with ours...

It ia a faulty ign switch lock (the sensor) > Expensive part >

Temp fix;

remove the cover underneath the steering column and locate the thin white flat (3) wire (runs from the ignition key lock down to a connector.

After starting the the car , dis-connect the connector under the dash that the Ign lock goes to , after that the car should start everytime.

You will need to replace the lock assy. if you want to fix this correctly ; I have been using ours for (6) months > no problem except the "Theft System " light stays on -

Jun 21, 2009 | 1996 Buick Skylark

1 Answer

Dash reads start disabled;due to theft sysytems;wait three minut


did you replace the fuse.if so try to get the alarm reset location,it could be in the stupidist place like my pathfinder you have to put the key in the tailgate and turn it to glass side and hold it for 20 seconds.and then hit the hidden reset switch under the rear carpet.

Feb 26, 2009 | 1995 Cadillac Eldorado

1 Answer

Theft mode light


Has anyone changed the part of the ignition switch that reads the key value and sends it to the anti-theft module, it this part malfunctions it will lock you out, and you will be unable to start the car, they are a known fault for all GM lines with factory anti-theft systems, it is part of the ignition switch, but I believe that it alone can be replaced, call your local dealer and ask about the sensor for the VATS key in the ignition, they should know what the part is formally called.

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6 Answers

1997 cadillac deville anti theft system comes on and i cant get my car started.


Its your engine to chassis ground I had same problem replace wire or try sanding paint around connection for better connection. The wire is located on top left of engine, very visible

Jul 23, 2008 | 2001 Cadillac DeVille

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