Question about 2000 GMC Jimmy

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The anti theft light is flashing and security light what should i do the car will not start or turnover as if it is stolen

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Get your vin number and call GM. Give them the year make and model and tell them what is going on. Chances are they can reset the system from a remote location. I had this done to me, not the same thing, but similar, someone called the ford company and lied to them telling them they were me, or something to that nature, and needed in my truck because I locked the keys in it. Ford unlocked the truck from a remote location, and whomever it was, took my identification. I am still angry about that, but I could almost bet someone had your codes changed, hence you can't go anywhere in your vehicle.

Posted on Aug 06, 2010

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96 olds lss turns over but something is robbing the power security light stays on


The security light is for anti-theft system ,when the light is on or flashing ,it think's the vehicle is being stolen . It will disable the fuel system ( fuel injectors ) so it won't start ! Does your key have a pellet on the side of the key ? Trying to find out which anti-theft system yours has . If it does have a little black pellet on the side of the part that goes into the ignition lock cylinder , That pellet is a resistor an when you fit into the the lock cylinder there are two contacts inside the lock that read the resistance . There is a module that then can say if it's the right resistance or not , allowing or not to let the fuel injectors fire. The problem with this anti-theft system the contacts and or the wires break ! This is the VAT'S - vehicle anti -theft system or they have pass lock - pass key 1 , 2 , 3 . On the vats system a by-pass can be done . On you tube there are videos showing how to do it .

Oct 04, 2015 | Cars & Trucks

2 Answers

How to reset anti-theft on a 2000 alero


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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1 Answer

I have a 03 cavalier it starts up then shuts back off what causes it


Hi Missy , There are a number of thing's that can cause this . Fuel system problems , ignition system problems , the PCM - powertrain control module , the PCM is the engine computer ! There are multiple sensors on this vehicle as with all cars for the 80's on . From 1996 on they have more electronic modules then before , Anti-theft systems , air bags, anti - lock brakes etc.
Does you car have any lights light on the dash ? check engine ? Security ?. When you first turn on your key the dash lights light up an after 7 seconds the lights should go out , Do they ? You should check for DTC's - diagnostic trouble codes . That means hooking your car up to a scan tool . If it starts an shuts back off right away I would think a anti-theft system problem . If the anti-theft thinks it being stolen it disables the fuel injection in some cases !

Mar 13, 2015 | 2003 Chevrolet Cavalier

1 Answer

Disarm anti theft system


The security light 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 misinterperates 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://vatspasslockpasskeysecurityhelp.yolasite.com/

Jul 27, 2013 | Buick Reatta Cars & Trucks

1 Answer

07 ford focus anti theft light flashes all the time


If the security or anti-theft light is flashing when you attempt to start your car, and the engine does not crank or does not start, you have an anti-theft problem. The system may not be recognizing your key's key-less entry signal, or there may be a fault in the anti-theft module or wiring.
There is a reset procedure to stop this anti-theft light flashing.many a times this helps The reset procedure is as follows:-- Reset the alarm by locking and unlocking the drivers side door.Do this a couple of times and then check it will reset the factory security system . If the reset procedure does not helps then its time to get the anti-theft system checked.There is a short circuit in the anti-theft system wiring. For more detailed help on this anti-theft light blinking issues please click on the link below http://www.aa1car.com/library/troubleshoot_antitheft_system.htm
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May 18, 2010 | Cars & Trucks

1 Answer

Our grand am wont start


The problem lies in the security feature that is part of the vehicle's anti-theft mechanism, but the big problem is that sometimes the vehicle automatically thinks that you (it's owner) are trying to steal it. When the security feature feels that the car is in danger of being stolen by means of the insertion f the wrong key (or what the car thinks may be the wrong key) it shuts down the fuel system for a period of 15 minutes. For this reason, when the security feature kicks in randomly, some mechanics are quick to assume that the problem lies in the fuel pump of the vehicle. one question will it even crank? or just turnover?

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1 Answer

My 2001 chevy malibu ls v6cranks,starts up but right after,right after dies like somethings shutting it down. radio was locked from me disconnecting my battery without disconnecting the anti theft system....


Is the Security light flashing??? If so, the security system (passlock II) is ******** off the fuel because the car thinks it is being stolen. If the security light is flashing, leave the key in the "on" position for about 10 minutes and it will stop flashing. Then turn the car off and try to start like you normally would.

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1 Answer

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the anti theft thing will come on and prevent starting for a while if it believes it is attempting to be stolen. even something silly like someone bumping it could possibly cause that. now if it does it at your house in a locked garage or something...

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1 Answer

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The chip is in the key. Either the key has lost it's program or the transceiver is not recognising the key. Try another key if you have one.

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