Question about 1993 Buick LeSabre

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How to hot wire a 93 buick lesabre. the key has a special chip on it. The key is worn out. the security panel light comes on. The car is old and I thought I would by - pass the ignition switch. Thanks

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Just google how to pass the vats system pass key , or remove the lower panle on the drivers side and look for a orange tube containing two white wires coming down from the steering colum get a ohms meter and and set it to 20 k and check the reading on your key by sticking a probe on each side of the key on the chip and find out the resistance value go to radio shack and by a resistor pack , cut the two wires leading to the fire wall and soulder your resister in between the two white wires you can be with in to points either way on the resister , i did this to put a remote start in my car and works great

Posted on May 10, 2010

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You cannot bypass GM Vag passkey. The key has a specific resistance the allows the BCM to start the car.

Posted on Nov 18, 2009

Testimonial: "Thank you. I thought I could cut a few wires under the steering wheel, twist them together and hot wire the car - by passing the ignition switch."

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As an alternate to the resistor idea, you could also go to Auto Zone or other parts store and pick up a 791 bypass, this comes with instructions on how to bypass VATS. Not sure if this works without a remote start though. I bought a remote start/keyless entry for my 93 lesabre custom and the bypass works wonders. Car runs for 25 minutes without having the key in the ignition.

Posted on Mar 04, 2012

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Be careful as the resistor will just bypass key and lock, while the core of the VATS system will remain in the loop.
There is a great DIY way of bypassing the VATS system entirely, including the TDM (that goes faulty very often with the age of the car). You can find the write-up here: http://newrockies.ca/vatsbypass

Posted on Jun 17, 2010

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I have a 1998 buick lesabre, it has the security chip in the key. more often then not now the car will not fire up when u turn the key and the security light comes on. my question is is this generally a...


If the light is flashing, its either the key or ignition. If its solid, its the theft deterrent module. (TDM) either of these can be bypassed at a far lesser cost than replacement. Go to this link for info and "do it yourself" options. http://vatspasslockpasskeysecurityhelp.yolasite.com/

Jul 27, 2011 | 1998 Buick LeSabre

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scan car for free at parts place-it will give u a readout of possible symptoms--inspec plug wires and dist/ign area--also fuel pump may be aging--test for loose wires under hood--may want to get an aditional scan somewhere else

Apr 14, 2010 | 1999 Buick LeSabre

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When i put the key in the ingintion all dash lights come on but the car will not turnover , its not the battery or starter because i tried to jump it off and it cranked but shut down how can i bypass the...


Replace the ign. lock cylinder. Put old chip key in new cylinder. Plug it in to the connector at bottom of steering column by the dash after removing the wire from old lock cylinder. With duplicate key to turn old cylinder start car. Be sure to clean the battery cables and replace bolts. Hide the new cylinder under dash with chip key in it.

Jun 23, 2009 | 1994 Buick LeSabre

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94 buick lesabre security light flashing


Ok..
Your vehicle is equipaded with Factory Anti Theft System.
Called Pass key II . If the mechanic found the Code
Pass key error....
Is there a few test to Do. to know exactly the problem.

1--- check if the Old and New key Are equipaded with a Little thing (Chip or Ressistence) in the center of the key.
If not you need a key with the chip. and the correct Ohms.

2. If you just replace the battery,
Full charge the battery Attemp to start the vehicle and leave the key in run position for exactly 11 Minutes, Them turn the key to off position for 30 seconds and try to start, if the vehicle start . you did the prosses to program the key.

If the vehicle not start.
Some times this procedure will require Up to 3 times to setup.
Or more with intervals of 30 minutes,, But if not start.
Remove the lower cover of the steering column. and the the Connector orange with 2 white wires shielded with a orange cover.
NOTE.. Be sure to not Confuse with the Yellow wires and connector, They are for the AIR BAG. Dont use a Convencinal Test light on any of the Mentionated wires....

After you find the wire and saw everything ok.

3-- You will need to remove the Ignition Lock cylinder.
The ignition lock cylinder is use 2 white wires shielded with orange cover, On 90% of the cases one of the wires come broken. and the ECM loss the comunication with the Chip incrusted in the key..

Dec 26, 2008 | 1994 Buick LeSabre

2 Answers

1997 Buick Le Sabre will not start somtimes


My wife has a 96 we had a similar problem. I believe that the connectors on the chip that is in the ignition key are worn out. The manual said that it is a safety feature on the car if someone tries to use a different key in the ignition or tries to punch it, it disables the car for like 3 minutes. We had a spare ignition key and switched to that and haven't had the problem since. Hope that solves your problem.

Nov 21, 2008 | 1997 Buick LeSabre

1 Answer

Electronic chip in key


As far as bypassing the securtiy chip, we can't tell you that one as it would assist any user on here to steal your car (or others).
When you turn the key to attempt to start it do the dash lights dim or even go out ?

Robert

Sep 25, 2008 | 1999 Buick LeSabre

2 Answers

Replaced ignition and steering wheel now car wont start -security light on


first of all was the ignition dealer a lot of cars have a start chip built into the key if you did after market it may not be compatible with out bypassing key security chip with out the right key setup the car stays diabled

Sep 11, 2008 | 1994 Buick LeSabre

2 Answers

Lesabre wont crank


If there is a chip in your key(little black square) then I would suspect the ignition cylinder. The contacts that pick up the resistance from your key can fail and cause a security issue which shuts down the ignition system. You will have to get a new key cut for your new cylinder with your old VATS code(the reistance in the chip on your old key).

Good Luck

Sep 07, 2008 | 1993 Buick LeSabre

2 Answers

1995 Buick LeSabre won't start when security light comes on.


When my 1994 LaSabre had a problem recognizing the chip in the key (due to the contacts in the lock not working), I managed to bypass the system by locating the two wires (clear tube with two smaller wires in it exiting the steerin column, unlike any other wiring), cutting the cable, and soldering a resistor across the two wires that go to the hidden module thet in turn controlls the starter and sends a signal to the engine computer. Use a resistor of the same resistamce value as in one of the keys for the car (measure resistors with a digital meter). There are a dozen or so values used. You loose the extra protection of the chip, but the fix is low cost.
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