ok i know theres a lot of threads posted about this but my problem is unique...i have a solid security light and car wont start much like the infamous vats problem but theres a little catch...i tried cleaning the key, didnt work...got a new key made, didnt work...spliced the wires underneath steering column and wired in a bypass that measure a resistance of 2.38 and my key measured exactly 2.38....this also didnt work...can anyone help me figure out wut i can possibly do next or try because my car has been down for over a week already with this problem and it happened all of the sudden after i let it sit for an entire 24 hour period without starting it...and then the next day would not start bc of this security light/vats problem....PLEASE HELP!!..its my daily driver

 

Did you first prove that the resistance of the key was not making it down to the connector at the base of the steering column before buying a new key and inserting the resistor?

Not all VATS problems are related to the key or ignition cylinder. You might have a problem in your BCM or from that connector under the dash to the BCM.

 

i connected my DMM to the cut wire heading back to the lock cylinder as it shows in ur diagram with the key in the ingnition in the off position and i got a perfect reading to match the resistance in the pellet on the key so now how can i test the VATS connecter and the BCM?? because it sounds like those are the last two things that could possibly be wrong...

 

almost 100% positive the BCM is bad because of the bypass not working, and also my door locks do not work correctly and the dome lights as well, all of which i have found out are controlled by the BCM...if anyone can confirm this lemme know...because tomorrow i am ordering a brand new BCM from GM $220...

 

On my website there is a guide on how you can retrieve trouble codes from the BCM. I don't have much of any experience with them as my 95 does not have a BCM.

 

well screw GM dealer...gmpartsdirect.com...just ordered my new BCM for $125...ill let you know how it goes after i install it...