Question about 1999 Chevrolet Monte Carlo

2 Answers

1999 Monte Carlo 3.1 theft deterrent

What determines the code on a GM key blank used on passkey ignition? Is it possible to get a wrong blank? The blank we received has lower resistance than our old key.Tried to relearn our system,and it didnt work..is there way to test the ignition switch itself?

Posted by on

  • cvalen1727 Sep 12, 2009

    Key was purchased at a GM dealership..new key has a lower resistance,1.13 OHMS old key is much higher,11.74 OHMS

×

2 Answers

  • Level 1:

    An expert who has achieved level 1.

    Corporal:

    An expert that has over 10 points.

    Mayor:

    An expert whose answer got voted for 2 times.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 15 Answers

If its the older VATS system with the pellet in the key, you must get the key with the exact resistance value. A GM dealer of any reputation should have what is called a VATS interrogator. It is inserted into the ignition switch and the VATS module is "interrogated" for the correct resistance value. The dealer can then cut the correct key for you with the correct pellet in it. Rare, but the VATS module could also be bad. If thats the case, a new VATS module installed will learn the resistance value of whatever the first key is thats placed in the ignition switch and turned on.

Posted on Sep 12, 2009

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    Hot-Shot:

    An expert who has answered 20 questions.

    Corporal:

    An expert that has over 10 points.

    Mayor:

    An expert whose answer got voted for 2 times.

  • Expert
  • 66 Answers

I would get the correct key... most locksmiths carry the GM keys

Posted on Sep 12, 2009

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Where is the starter relay on a 1998 Monte Carlo located


It's not called a starter relay , it's theft deterrent relay and it's controlled by the theft deterrent module.
When the ignition switch is moved to the START position (and the theft deterrent module recognizes the key code), battery voltage is applied to starter solenoid (through the theft deterrent relay). Both solenoid windings are energized. The circuit through the pull-in winding is completed to ground through the starter motor. The windings work together magnetically to pull in and hold the plunger, which moves the shift lever. This action causes the starter drive assembly to rotate as it engages with the flywheel ring gear on the engine. At the same time, the plunger closes the solenoid switch contacts in the starter solenoid. Full battery voltage is applied directly to the starter motor, which cranks the engine.
Theft Deterrent Relay
Behind RH side of I/P, above I/P compartment

Jan 08, 2017 | 1998 Chevrolet Monte Carlo

1 Answer

How do I disable the kill switch or bypass/disable the security code on my 2000 monte carlo?


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/

26136984-n0ruldykmagyusv0wgntwhg0-3-0.jpg

Mar 21, 2016 | 2000 Chevrolet Chevrolet Monte Carlo SS

3 Answers

My car wont start ,how do I reset the theft system on a 1999 monte carlo


Is the theft light on the dash lit ? If so turn the key onto the run position till the theft light goes out, about 10min. Turn key off for a few min. then start , hope that helps. If not have to have it checked for codes in the (BCM) body control module or the (PCM) powertrain control module !

Dec 21, 2014 | 1999 Chevrolet Monte Carlo

1 Answer

Engine wont start battery and alternator check out ok by disconnecting battery and reconnecting it will start until i turn off engine again


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. 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 link explains it pretty well.
http://vatspasslockpasskeysecurityhelp.yolasite.com/

Feb 01, 2014 | 2000 Chevrolet Monte Carlo

1 Answer

Why won't my 2005 montecarlo start and keeps saying security


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/

Nov 13, 2013 | 2005 Chevrolet Monte Carlo

1 Answer

I have an 02 monte carlo security is coming on message center and car wont start


This is a very common problem on GM vehicles. GM's anti theft system relies on many things to be working "just right". If they are not, your vehicles goes into anti theft mode and locks out the starter and/or injectors. Leaving your car "immobilized". The hard part is finding which part of the system in failing. The KEY, the IGNITION/LOCK CYLINDER, or the actual TDM computer (Theft Deterrent Module). Any 1 one of these parts will be 100-700 bucks plus dealer fees and labor. I have had great luck in just bypassing the whole system. If you do this permanently, you'll never have to worry about this again, and you can do it yourself in about an hour. Check out this link for info, pictures, and DO IT YOURSELF ways to beat this problem.

http://vatspasslockpasskeysecurityhelp.yolasite.com/

tayjoejoe_5.jpg

Jun 21, 2011 | 2002 Chevrolet Monte Carlo

2 Answers

Security light came on last night while i was driving now my monte carlo wont start all the lights come on it just wont start


The SECURITY light is a common problem on GM cars. The key is not just a key, it also communicates with the ignition/lock cylinder, and then to the TDM (theft deterrent module) also known as the computer. When these parts dont communcate properly, the car thinks its being stolen and turns off the starter. The hard part is finding out which part is failing. Mechanics can use this to their advantage and change everything, running up a large bill. I have found that bypassing the system is the most cost effective method and you also never have to worry about the problem EVER again. Ive bypassed dozens of GM vehicles, and never had any issues after that. Here is a link that explains the problem and offers some solutions.
http://vatspasslockpasskeysecurityhelp.yolasite.com/

Monte Carlos effected by Vats or Passlock security Failure that can be fixed by bypassing
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005 Good luck, hope this helps. Any questions, please comment back.

May 27, 2011 | Chevrolet Monte Carlo Cars & Trucks

1 Answer

How di I reset my security light on my 2003 monte carlo


PASSKEY LOCKOUT RESET ALL GM CARS 1999 AND UP
1) Put the key in the ignition and turn to the "ON" position. Leave it that way for 10 minutes. After 10 minutes turn the key and take it out. Repeat this process (2) more times (3 times, 30 minutes total) This should reset the PASSKEY system to recognize your key.

May 25, 2010 | 2003 Chevrolet Monte Carlo

Not finding what you are looking for?
1999 Chevrolet Monte Carlo Logo

284 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts

yadayada
yadayada

Level 3 Expert

75051 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22095 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

7726 Answers

Are you a Chevrolet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...