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Is there a real good reason to disable VATS? besides not replacing the lock cylinder.... and risk having your car stolen..
 

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The only reason I can think of is if your system is acting up and you are worried about it leaving you standed.

The only real way to disable it is through programming , AND module bypass

Mine still is there, even after the LS swap
 

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Careful, just like talking about springs this subject will awaken the doomsayers to tell you all about the tremendous pain and suffering that deleting VATS will unleash upon you, your insurance and your family.

I hate the setup that can leave you stranded. I once replaced THREE cylinders in an attempt to keep it on a former wagon, each one made it a month before the wiring failed. Finally said F it and did the resistor mod and had no more problems. As far as I know the wagon has still never been stolen or used to kill anyone and it's been at least 10 years.

Bought my current wagon in 2017 and it came with the light on due to a fault. This time I bypassed the system and tuned it out of the PCM. 3 years now and the car has not been stolen.

There are plenty of ways to disable the car without VATS and GPS trackers are so cheap it's stupid not to have one anyways.

Some folks love the setup and that's fine. My problems with it date back to 1996 when I had a Trans Am at the dealership for a week before they figured out the problem. Picked the car up and the light came back on but car started/ran so I just pulled the fu&^%ing bulb.
 

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GPS trackers are so cheap it's stupid not to have one anyways.
Since you have personal experience with the GPS trackers please start a thread on them. I have not thought the monthly payment to the cell company was worth it.
 

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Hello all, I have a 95 impala SS (true SS) I am restoring, had replaced steering column with key and matching theft deterrent module car starts runs badly but runs and only codes I get are 46 and to other codes for A/C. I currently don’t have the cluster in to verify the security light is doing or could that be cause of the 46 code? I originally just bought climb from junk yard and car would not start, so o did research and went back to get the theft module, started right then, how do I get this light to go off and yes rest code every possible way no dice.
THanks im advance!
 

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1995 Cadillac Fleetwood Brougham
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Hello all, I have a 95 impala SS (true SS) I am restoring, had replaced steering column with key and matching theft deterrent module car starts runs badly but runs and only codes I get are 46 and to other codes for A/C. I currently don’t have the cluster in to verify the security light is doing or could that be cause of the 46 code? I originally just bought climb from junk yard and car would not start, so o did research and went back to get the theft module, started right then, how do I get this light to go off and yes rest code every possible way no dice.
THanks im advance!
I don't know what 46 is, BUT:

If the car is running, you do not have a VATS problem.
 

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I don't know what 46 is, BUT:

If the car is running, you do not have a VATS problem.
If you do not know what DTC 46 is you should not be so sure about it not being a VATS problem.
DTC 46 pass-keyII Circuit.


From the FACTORY SERVICE MANUAL:
DTC46 will set and the engine will stall if the proper signal is not being received on the CKT229 pin(A25) by the PCM after 1.7 seconds.


This is a pulse width modulated signal(squarewave) from 40-60 hertz(55hz).
 

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If you do not know what DTC 46 is you should not be so sure about it not being a VATS problem.
DTC 46 pass-keyII Circuit.


From the FACTORY SERVICE MANUAL:
DTC46 will set and the engine will stall if the proper signal is not being received on the CKT229 pin(A25) by the PCM after 1.7 seconds.


This is a pulse width modulated signal(squarewave) from 40-60 hertz(55hz).
Dude... What you just said was exactly my point.

The car is RUNNING, not stalling after 1.7 seconds. At least, that was my interpretation.

I'm just telling him what #46 doesn't mean.
 

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The car is RUNNING, not stalling after 1.7 seconds. At least, that was my interpretation.

I'm just telling him what #46 doesn't mean.

The absence of a go signal is not a valid no-go signal, and vice versa. If the TDM decides a theft attempt is in progress when the engine is already running, it will not stop the engine, but it will turn on the “Security” light and enter anti-theft mode at the next key cycle.
POST#1

If the PCM does not see the PWM WHILE THE ENGINE IS RUNNING it will set DCT46 BUT it does not set the Check Engine(MIL) light AND the engine keeps running for safety.
SO IF a PWM signal is lost intermittently there is no MIL light AND there may or may not be a pass key light. IE pass key does not "know " about damaged wiring between the VATS and the PCM.so no pass key light.
 
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