Question about 1999 Oldsmobile Alero

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Security light flashes car cranks but won`t start any way to bypass security .

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  • Mike Butler
    Mike Butler May 11, 2010

    Tried unlocking both front doors with key? No info on how to disarm it in the owners manual?

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From what i have read, it is design to cut the gas supply so no one can still your car. Mine car wouldn't crank at all with the light blinking. turn the key to the on position and wait 10 minutes. turn it off and try to crank it. it has worked every time on mine. I have also read to cut the LITTLE yellow wire that runs from ignition,but i don't feel comfortable cutting wires even though you can always reattch the wire.

Posted on May 25, 2009

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Turn key on for 10 minutes until light stops flashing then try to crank car over

Posted on May 23, 2009

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1 Answer

96 Monte carlo z34 won't crank over unless I jump


Sounds like a problem with the key switch, probably the security system. You may only have power to the fuel pump when the engine is cranking.
Is the security light on or flashing ?

Jun 29, 2013 | Cars & Trucks

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2002 chevy impala won't start if I jump starter


Is the security light on or flashing ?
The yellow wire goes from the key switch to the neutral safety switch, then to the starter. So bypassing the neutral safety would make the starter crank the engine, but would have nothing to do with the rest of the engine.

May 27, 2013 | Cars & Trucks

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How do i reset the security system in my 1998 chevy s10 pickup


Is it just not cranking/starting with the security light flashing? If so turn the key to the on position & leave it on for about 10 minutes or until the security light stops flashing. Then turn the key off for a second then try starting the truck. If this works check into bypassing the body control module with a resistor. Hope this helps.

Nov 06, 2012 | Cars & Trucks

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Have an Oldsmobile 1997 Achieva security light stays on and won't everyhing but still won't start , would like to know would the Pro VATS Full Bypass work on it.


If the security light is on, then you have a failed antitheft system. This light is only for this. If you bypass the system, your car will work perfectly again.
http://vatspasslockpasskeysecurityhelp.yolasite.com/

Feb 04, 2012 | Cars & Trucks

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I have a 2001 Olds Intrigue that won't start every once in a while. When it won't start the security light flashes so GM told me it was the passcode and I would have to change the ignition switch...


you can not bypass the security in that car, it is built into the main computer, they have problems with the ignition switch screwing up and the only way to start it while the light flashes is to turn the key to ON but don't crank engine, leave on for 10 to 15 minutes until light goes out then start car.

Sep 21, 2011 | 1998 Oldsmobile Intrigue

1 Answer

My 2004 impala has full powere but won't start no


When it doesn't start, is the security light and maybe the battery light flashing?

If yes, it's probably the PassLock security system. I just bypassed mine on my 2002 Impala. There are several websites with information and possible solutions; including spending several hundred dollars at the dealer, to a do-it-yourself bypass for a couple dollars.

The best source of information I could find was:
http://www.bergerweb.net/grandamsecurityfix.htm
There is lots of good information there.

If you want to see my writeup on bypassing the PassLock on my Impala, you may have to register at http://www.naioa.com and go to:
http://www.naioa.com/v2/modules.php?name=Forums&file=viewtopic&t=44480

Jun 27, 2011 | 2004 Chevrolet Impala

3 Answers

Car won't start, new battery, starter, alternator. security light is flashing


Need to check onwer manual the disarm theft procedure: 1993-current models. Must have a Yahoo ID to log in.

Good luck.

May 08, 2011 | 1999 Pontiac Bonneville

1 Answer

I turn the key and the security light flashes


leave the key in the ignition, turned to 'run' (just before the crank position) and leave it there for about 15 minutes-the security light will then stop flashing-so NOT turn it off, turn it to crank and start the car. You have a security module that is not seeing the same resistance in the ignition switch as it expects, meaning you will have to either replace the ignition switch (expensive) or bypass the module (easy and inexpensive)-I have done lots of these, requires about 15 cents worth of parts and can be done in 1/2 hour.

Jan 24, 2011 | 2003 Pontiac Grand Am

1 Answer

Security light flashes and won''t start. has plenty of battery. clean all keys and dried.


It's when the security light starts flashing that the infamous "chip" in the key becomes a nightmare to many. Gradually the car begins not cranking anymore or if it cranks it would start and die in a second. Randomly it will do this more and more often until it won't start anymore. VATS, PASSkey and Passlock immobilizer systems are killing cars all over North America, they have a short lifespan and are certainly more effective against owners than thieves. Here is how you save your car
1st trick, (if not starting) turn the key forward 2 clicks till right before it would normally start, leave like that for 10 minutes. ( no less ) After 10 minutes, turn key back then forward and your car might start. I did this in my regal for more than a year. If its shuting down while running, im sorry i have no quick fix...

Cheap fix: Bypass the chip in your key. Temporary, but effective. Until the TDM (theft deterrent module) in the dash poops out, then you're kinda screwed. I was told that these types of key security systems have a 7-10 year life span. Sucks for us. This link explains the "Key Issue" pretty well.
----- http://vats.likeabigdog.com/


Never worry again fix: Bypass the whole VATS/Passlock/passkey I or passkey II system entirely. Literally take it out, and throw it away. I just did this in my Regal. Took about an hour. Took longer to find the thing than it did to fix the problem. For a list of cars effected by this problem. See the NEWROCKIES link on the right side of their page......... They sell a unit for 200 bucks to totally bypass this system FOREVER. life time-money back and all that. Finally did this in my car. Well worth the 200 if you've looked into getting this replaced... Anywhere from 600-1000 bucks.
----- http://newrockies.ca?ap_id=judd0081
----- With this fix, you can take that whole Vats, passlock, passkey **** system out of your car all together. Good info on both sites

Dec 29, 2010 | 1997 Buick LeSabre

1 Answer

The car does not crank or start. The battery is new . The starter works if bypassed at the solenoid but the car runs only a few seconds. The security light flashes. Both keys are the same. Ideas?


If security is flashing, that is your problem. You have VATS, which fortunately has a relatively simple bypass of the ignition switch (I assume the problem is in the steering column). The solution is here: http://vats.likeabigdog.com/ . I have used this successfully in the past. You need some resistors, an ohmmeter, and a soldering gun/iron to do this fix. Let me know if you have questions.

Oct 18, 2010 | 1993 Oldsmobile Eighty Eight

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