Question about 1998 Cadillac DeVille

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REPLACED ALERNATOR AND RADIATOR ON 98 DEVILLE WITHNSTAR ENGINE. CAR WONT START AND SHOWS THEFT ALARMS MSGS HOW CAN I GET THE CAR TO RESTART???

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  • artranny Mar 31, 2011

    RE FIRS6T METHOD: DO YOU RECONNECT
    NEGATIVE TERMINAL BEFORE TRYING TO START CAR???

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2 Answers

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  • Cadillac Master
  • 11,800 Answers

The alarm/antitheft system was triggered - you need to reset it. To do that disconnect the battery for 10 minutes, connect it back, roll the driver window down, put the key in and put the contact on but not start the motor, leave the key like that for 10 minutes then turn the key off and count to 10, then turn the key forward again and wait for the security light to go out.

Posted on Mar 31, 2011

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  • Master
  • 2,427 Answers

Well I'm thinking here that you will need to get a technician from a garage to bypass the anti theft system or remove it and connect back everything directly. but try this first.

2 methods
1.) remove negative battery terminal
2.) press and hold your brake for 1 minute
3.) try it now.

if that fails

1.) open your hood
2.) close all your doors and lock it
3.) remove your negative battery terminal,
4.) Rapidly keep touching and removing the negative terminal to the negative side of the battery , this will turn the alarm on and off rapidly forcing it to reset and switch off, you will know it has done this when all your door locks open. (yes this is the way carjackers do it)

Posted on Mar 31, 2011

  • Rishi Roshan Ali Mar 31, 2011

    sorry, yes you have to reconnect it, my apologies,, wait 1 minute then reconnect. pressing the brake draws all the power out of the system..

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My 98 Cad Deville will not start it says anti theft problem


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Oct 19, 2010 | 1998 Cadillac DeVille

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My 98' deville wont start whenever i put the key in the ignition all the gauges lite up but engine wont start. The l.e.d display tells me "starting disablledremove key...i have no idea what to do..


The resistor chip in the key may be damaged or the sensor in the ignition may be damaged. You can have the ignition replaced or disable the theft deterent by hard wiring in the proper resistors. Search the cadillac forums for details on how to do this.

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Wont start


you should contact a Attorney,this most likely wont go well ,it sounds as if it was improperly in stalled ,at the lest call your insurance.

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My 1990 Cadillac Deville wont start or engage starter


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Dec 24, 2009 | 1998 Cadillac DeVille

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Have the ignition fuses replaced and have the shop that installed the remote start fix the main power sorce for their unit.

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