You need to know the resistance of the chip in the key when replacing the key or adding a inline resistor to bypass the key when the anti theft system is not working correctly. You can also reprogram the PCM and delete the system, Which I can do
How to Find KEY resistance in GM PASSKEY Chip for KEY REPLACEMENT VATS PASSKEY BYPASS
26,010
Like
Save
){kind=link}
- Tags:
Bypass, Chip, Find, PASSkey, Replacement, resistance, VATS
- Categories: GM
Comments
Comments are disabled for this post.
When I read mine I only get a reading of 1?
I got .87 reading. What code would that be?
2004 Buick century!!! Ughh went to make key never would have guessed it’s vat system.
thanks my dude ! I was about to blindly order the wrong key LOL
Hay I have a 1987 Corvette when I put the connectors on the key the numbers just go up and don't
It’s a neat trick I appreciate it thank you The problem is it’s too late I lost the key .
Very big help for friend's 96 Buick Regal that he just bought and then wouldn't start. Unplugged the two small white wires going up the steering column that read the resistance in the key, inserted resistors equivalent to the key resistance into the side of the connector going to the VATS and bingo, no more starting problems. The two white wires got frayed at the ignition switch from repeated turns of the key. This way the VATS is always reading the correct resistance. Read about the two white wires here:
https://www.justanswer.com/buick/4ojcy-1996-buick-regal-anti-theft-deterrent-module.html
I lost my key and no way in shape, form or fashion will I ever pay or nore can I afford a key or ignition switch so I've decided to go this route and found an equation and knockout in the back of my owner's warranty manual 39K7 20/MO.. Someone please help cause I'm going with #11 but idk cause idk how the sovle that equation
My security light blinks,,,I just bought a 15 resistor Bypass kit,,,,I tested both of my keys,,, they Both read 890,,,,I used the 900 resistor in the kit,,and my security light still blinks and it won't start,,,, I'm out of ideas…..
Can you check what vats key you have with out the key ?
Check my vid to show how to put the resistor in-line
yeah well my key ohms at 470 and according to the charts that does not fall in-between any of them
I have 2 keys, 1 with the knock out still inside the keyring part. Both don't have any visible numbers on them. Do they get the key number from results of the ohm's?