Question about 2002 Chevrolet Impala

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Car wont start

I have had this problem off and on. It seems to be the Passlock security system. There doesn't seem to be a permanent fix for this. I have learned to wait 10- 20 minuted and it starts.

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The pass lock system can be fixed. The module in the car is shorting out internally , intermitantly. I would take to the dealer to reset the system. Then check the pass lock module in the vehicle to see if it is shorting out. The ignition switch in the car is part of the system . The ignition switch could be going out also. Good luck

Posted on Jul 18, 2009

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Look for a loose wires if non then . there is part of the system being adjusted.

Posted on Jul 18, 2009

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Wont start passlock not on got jump it starts then wont start got another jump wont start tried passlock relearn lites gagues work got jump it starts it wont start again wit jump took battery in itsok


Need to turn off passlock - Chevrolet - iFixit

https://www.ifixit.com/Answers/View/.../Need+to+turn+off+passloc...

iFixitThose of you that have stalling problems, it is not passlock. ... traction fault on the display when it shuts down or won't start and have to wait my 10 min to restart.

GM Passlock Security Light Issues - RepairPal

repairpal.com/gm-passlock-security-light-issues
If you find yourself stranded, your engine won't start, and the security light is flashing, ... The most common repair is to replace the ignition lock cylinder or Passlock ... The warning light on the VATS system is similar except it does not have the ...

No Start Due to Failed Passlock Sensor : Pontiac Grand Am ...

repairpal.com > Problems > Pontiac > Grand Am

Dec 05, 2015 | Cars & Trucks

1 Answer

Passlock security


The 2000 saturn runs the passlock system. Unlike VATS its predecesser, this system is much harder to bypass. The old "resister" trick that many people still do, does not apply for this system. So lets start at the basics. The security light flashing indicates 1 of 3 things. The problem in your passlock is either in the KEY, IGNITION LOCK CYLINDER, or WIRING before the Theft Deterrent Module (computer). This means you could replace the key or the ignition (whichever is to blame) and you might be ok. You would have to reprogram the key to the ignition. The other option is to bypass it. Unfortunately that costs money also, but honestly no more than a new transponder key and far less than a Lock Cylinder. Just trying to give you all the options. Here is a link that explains the SECURITY problem rather well and gives some good tricks and options for fixing this yourself permanently

http://vatspasslockpasskeysecurityhelp.yolasite.com/

Dec 10, 2011 | 2000 Saturn Ls 4dr Sedan

1 Answer

Security light is on in my 1999 gmc safari and starts fine sometimes and sometimes won't start. turns over fine, just doesn't run. fuel pressure is fine cap and rotor are new. i do not believe the...


This car is equipped with Passlock antitheft security by GM. You dont have a chip, but there is a transponder in the key head. This system is known to fail. The fact that the security light is on proves the failure of the Passlock and why it wont run. The hard part is finding out which part of the passlock system has failed. Read this link for info and DO IT YOURSELF solutions to the problem.

http://vatspasslockpasskeysecurityhelp.yolasite.com/

Jul 16, 2011 | 1999 GMC Safari

2 Answers

My trail blazer 2006 wont start and it has a light on of a car with a lock what does this mean heeelp please as soon as possible emergency


You have now experienced GM's terrible anti theft security system. These systems are known for failing and will cost you an arm and a leg to fix. Anywhere from $350 - $700 plus labor. Most mechanics wont even touch these "PASSkey" security systems.You'll have to go to a Dealer mechanic. The good news is that you can bypass these systems permanently. And you're vehicle is one of these lucky ones that CAN be bypassed. This link should help you find what you need and help inform you of how this system works.

http://vatspasslockpasskeysecurityhelp.yolasite.com/ TRAILBLAZER 2002 2003 2004 2005 2006 2007 2008 Effected by Passlock/PASSkey Failure. tayjoejoe_17.jpg

Jul 11, 2011 | 2006 Chevrolet Trailblazer

1 Answer

My 2000 chevy impala starts and runs for a bout 2 seconds. I've been told its the pass 2 security system I tried to bypass that it did not work so since the car has 2000000 thousand miles I thought I...


Well, you wont be able to hotwire it direct. Thats why the Passlock is there. The TDM (theft deterrent module-also called Body control module- or computer) must receive and send the correct signal to let the injectors work. Thats why you car is shutting down. I dont know what you used as a BYPASS, but there is a really great one here that illiminates ALL parts of this system permanently. Read through this link and check out the PERMANENT FIX part. Sounds like this is what you need. Trust me on this one, you will NEVER be able to hotwire that thing, They are wound REALLY tight, and the Passlock system has its fingers in more than just the starter, it allows fuel doors to open, injectors to spray, and sometimes spark in general.

http://vatspasslockpasskeysecurityhelp.yolasite.com/

2000 2001 2002 2003 2004 2005 Chevrolet Impala Passlock Security problem years

tayjoejoe_14.jpg

Jul 08, 2011 | Chevrolet Impala Cars & Trucks

2 Answers

Car wont turn over replaced ignition control mordule plugs and car wont start what do u think


If it doesn't turn over at all, it could be the crankshaft or camshaft sensor, is your security light staying on? If so, it could be your security system, passlock was installed in many gm's and caused alot of problems. Have your starter checked at autozone or advance, they check them for free. If it is the security system youtube shows how to bypass the passlock system. Also, check to see if your car is getting fuel. Hope this helps.

Jun 15, 2011 | 1993 Oldsmobile Cutlass Supreme

3 Answers

I cant seem to get the van to start its not fuel we tried that at least we think we hear in kicking on but it seems no to getting any fire????


just cause you hear a fuel pump does not mean it works it can work but not be pumping the correct amount of fuel pressure

Oct 19, 2009 | 2001 Chevrolet Venture

2 Answers

My s-10 truck, 99 model,2,2L; wont start due to a dash board sign of security activated, the motor cranks but wont start at all, can you help me, checked injectors OK, Checked battery OK, evrything seems...


i had the same problem on my 98 sonoma. for some reason your passlock system did not recognise your key and went into security. you have to take it to a dealer or a shop with a computer and have them reset your passlock. if you have a buddy or know someone with a scan tool they may be able to do it to. i think the shop here charged $35. but there is no other way to fix it.

Mar 16, 2009 | 1999 Chevrolet S-10 Pickup

2 Answers

Security light comes on and car doesn't want to start sometimes.


Disable the passlock system permanently. The other functions will still work just fine. The passlock system for some mystery reason sometimes senses an intrusion even if there is not one and locks down the fuel injectors. Underneath the steering column there is a metal plate held in place with a few bolts. It needs to come out. In order to do so you may have to remove some dash components but it is not as hard as it seems. Once the plate is removed running up the steering column there will be (3) wires bundled or tied together. These are the wires for the passlock system (Yellow + Black - and White neutral) It is the only group of 3 configured like this. START the car and while the car is running snip the YELLOW wire ONLY! and tape off the ends. Put everything back together and live better knowing your car will now start each and every time. The Yellow or Orange security light will stay on permanently but this will not cause any other problems.

Jul 23, 2008 | 2003 Chevrolet Impala

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