Question about 1999 Pontiac Grand Prix

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2000 Pontiac GTP starts then shuts off. I know that the problem has something to do with the security system but I cant figure out what exactly is causing it to shut off.

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Body control module. goes bad. it turn off fuel pump . disable car from cranking.it think some one stealing car so .it want even crank .dealer ship have to replace it . not a cheap fix. they have to reprogram car .once they replace it.

Posted on Mar 17, 2009

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I tried to turn key cylinder radio comes on car won't start security light on can i bypass ? i already turned off alarm with door key. husband already lost job because of this we cant afford to fix


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.
http://www.diy-gm-security.com/

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Dec 16, 2015 | 2000 Pontiac Montana

1 Answer

Shut off the alarm system


failed ignition lock cylinder needs replaced

Feb 16, 2015 | 2000 Pontiac Grand Prix GTP

1 Answer

My 2004 pontiac grand prix gtp has twice now thrown reduced engine power across my dash and acts like it cant get any gas and comes to a stop. Does anyone know what this might be the first time I figured...


Have the fault codes read as a reduce power message means that something is wrong either in the engine or the gear box. check oil and coolant levels and treat the message seriously as it is intending to stop costly damage

Jan 07, 2014 | 2004 Pontiac Grand Prix GT2

1 Answer

If the security system is faulty on a 1997 pontiac grand prix gtp will the motor run rich


No.
The security system would prevent the car from cranking and the injectors from opening if the wrong key is used.

Oct 05, 2012 | 1997 Pontiac Grand Prix

1 Answer

Security system


turn ignition to the on position,,,leave on for 15 minuets,,then turn off,,then turn back on to start,,,hoped it helped

Apr 25, 2010 | 1998 Pontiac Grand Prix

3 Answers

My 2000 grandprix gtp will start for a min then shut right off? before this stared happening it ran great any ideas? I have changed the fuel pump and fuel filter.


could be your anti theft system needs to be reset. turn your key to the on position for ten min, turn it off and then back to the on position for ten more min it should reset your key. anti theft cuts off your fuel supply so it can't be stolen

Mar 18, 2010 | 2000 Pontiac Grand Prix

2 Answers

1997 pontiac grand prix GTP that will die while im driving


I would start by replacing the Crank sensor and the cam sensor.a26973d.gif

Mar 08, 2010 | 1997 Pontiac Grand Prix

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