Question about 1998 Plymouth Grand Voyager

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My van starts but then cuts off after about 2-3 seconds. My key has the chip and I was told that the theft deterrent system wasnt reading the chip. I took my key to get a spare at walmart since they are able to make them now and they said that there wasnt a chip inside the key...

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If you can get it to your dealer they can reprogram your anti theft to your key and I beleave there is something written in the owners manual under antitheft you should see a way to try there too

Posted on Dec 29, 2010


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I lost my only key to my 2000 gmc jimmy does this require a chip or is it just a regular key

No your vehicle doesn't have a chip key . You can just replace the key and lock cylinder . Without a key to copy ! Or the dealer can cut a key using the Vin #

The Passlock™ sensor is separate from the key and lock cylinder. The key and the lock cylinder work together in order to determine if the proper ignition key was used to start the vehicle.
The theft deterrent system has been incorporated into the body control module (BCM). The theft deterrent is provided in order to prevent the vehicle operation if the correct key is not used in order to start the vehicle. The ignition key turns the lock cylinder. The cylinder rotation produces an analog voltage code in the passlock™ sensor. This voltage code is received by the BCM. The BCM compares the voltage code to the previousely learned voltage code. If the codes match, a class 2 message is sent from the BCM to the vehicle control module (VCM)/powertrain control module (PCM). The message enables the fuel injectors.

Feb 07, 2017 | 2000 GMC Jimmy

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I have a 2011 yukon denali i cut 2 new keys and the theft deterrent system came on wht cause it?

it is not te keys --it is the chip in the end of the key that communicates with the immobiliser so you will have to have the new key programmed to the vehicle.

Jan 11, 2015 | 2011 GMC Yukon

2 Answers

Where is the theft deterrent module located (VATS or anti-theft module) in GMC Acadia 2007?

the exact spot ,huh?

first off the FSM book and has that, and vast more.

but you asked.

first off its many parts, why not post symptoms first then ask for Vats.

not the immoblizer but just theft

this is CDC system and is not VATS

the compenents are: as follows:

The content theft deterrent (CTD) system, when armed, is designed to deter vehicle content theft by pulsing the horns and exterior lamps for approximately 30 seconds when an unauthorized vehicle entry is detected. However, the CTD System does not affect engine starting.

An unauthorized entry can be any of the following with the CTD System armed:

  • When the liftgate or liftglass has been opened without the use of the keyless entry system or without first being unlocked.

  • When any door is opened without first being unlocked using the keyless entry transmitter.

  • When the driver door is opened without being first unlocked using the driver door cylinder.

The components of the system are:

  • The body control module

  • The door ajar switches

  • The driver door key cylinder switch

  • The liftgate/liftglass ajar switch

end quote.

more quotes under what to do first

Diagnostic Starting Point - Theft Deterrent
Diagnostic Starting Point - Theft Deterrent
Begin the system diagnosis with the Diagnostic System Check - Vehicle . The Diagnostic System Check will provide the following information:

  • The identification of the control modules which command the system

  • The ability of the control modules to communicate through the serial data circuit

  • The identification of any stored diagnostic trouble codes (DTCs) and their status

The use of the Diagnostic System Check will identify the correct procedure for diagnosing the system and where the procedure is located.

does this help, ????

May 10, 2014 | 2007 GMC Acadia

1 Answer

Message: "service theft deterrent system"

The system is not recognizing the chip in the new key, or the key does not have a chip at all.
The new key would have to be cut at a dealer or some locksmith shops that have access to the codes.

Jul 04, 2012 | 2008 Chevrolet Impala

1 Answer

Hello I have a 1994 buick park avenue. My security light is flashing and my car will not start. I have been back and forth to the dealership to get this alarm system disabled but I've been told that...

There are a few ways that i know of to BYPASS this system. This problem has been occurring on GM vehicles since 1982. They are fully aware of the problem and hundreds of vehicles are effected by this same curse. Since your security light is flashing, this tends to lead toward either a worn out key or a bad ignition. This system is all about READING the ohms of the chip in your key. The ignition reads this code, sends it to the Theft Deterrent Module (TDM), and then the TDM sends a signal that allows the starter to start. It is BREAKS in this communication that triggers the security light and the "no start" situation. If the security light were to be solid instaed of flashing. then this would indicate a failure in the TDM. Go this link. It explains the situation and offers 2 ways to bypass this system. The first one is considered a key/ignition bypass. This should work for you though it would still leave the TDM active. The second one is a full bypass which eliminates the entire system 100%.

Sep 05, 2011 | 1992 Buick Park Avenue

2 Answers

I have a 2000 Yukon Denali and the alarm system will not alow it to start at times.....What should i do whwn this happens or how can i prevent this from happening

According to my lists, 2000 Yukon has a Passlock 2 anti theft security system. This means that the key literally has a transponder in it that sends a radio signal to the ignition. The ignition/lock cylinder then sends a signal to the TDM (theft deterrent module) which then reads the signal and allows your truck to start. If there are any communication breaks, the truck thinks its being stolen and goes into anti theft.... Read up on this link. There might be an option for you.

May 05, 2011 | 2000 GMC Yukon Denali

1 Answer

Theft-deterrent system problem

let it sit for about an hour, untouched to let it clear out of theft mode. If it doesn't start with a programmed key after that, you may have to take it into a shop and have it looked at. It may just be a bad transceiver but if any piece of the system has been replaced the keys have to be programmed with a dealership scan tool.

Oct 03, 2009 | 1999 Ford Taurus

1 Answer

Security light is on and car wont start

when security light comes on your car is in theft can try another key.if engine still dont crank.dealership have to fix it.they have check the ignition switch and.pcm theft detterrant system.also cars keys have a chip on it.they have to check to see if pcm is reading the keys.if not they have to replace ignition switch and keys and reprogram your pcm theft deterrant your car will crank.

Jul 12, 2009 | 2001 Chevrolet Monte Carlo

1 Answer

My car turned over like it wanted to start, then it shut right off. why?

I got some keys cut of the original. But the car does not stay running if you use these keys. It'll start and run for about 2 second and shut down. The original key must be used because of the Sentry Key theft deterrant system. Could be a cut key or an issue with this system. Could also be many other things but that's a simple place to start.

Jan 31, 2009 | 1998 Chrysler Concorde

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