Well you can either take the title and the registration to your local dealer and they will give you the key code and what the resistor number is. Or you can take a volt meter put it on 20K ohms and use the positive and negitive touched to each side of the key pellet and that will tell you what the resistor number is.

 

dont touch the metal of the key or the leads with your finger or it will give you a false reading...once you figure which of the 15 possible resistors it is. goto an audio shop, they have the exact one you need instead of trying to make one out of several from radio shack...

its really easy to bypass the vats system

heres the ohms reading to look for

GM Key
Number Vats
Code Value
(Ohms)
1 - 392
2 CN 523
3 FW 681
4 GP 887
5 KA 1130
6 N5 1470
7 UN 1870
8 XB 2370
9 GA 3010
10 NP 3740
11 FY 4750
12 C5 6040
13 XY 7500
14 KB 9530
15 UW 11800

 

so do like rocketvette95 said and 1 of these codes will pop up touching the key pellet on my old columng then bypass it then my 94 column with the 94 kew will work correct??

 

see i had lost the key and to think i could just replace the column from a 94 with its key would work but i guess not,i have to get the original key resistance then bypass it and hope it will start, i had did this column swap because i had a 94 pats car. but i do still have the original column so wheres the key pellet??

 

If you have the original column and you just lost the key,why not go to the dealer and get a new key with the right resitor cut for it

 

well the whole side of the column was broke off were the ignition located,some 1 tryed to steal the car but in the process messed it up so there was no fixing it

 

You just need to touch the key pellet,not the column

 

wheres the key pellet located? or is there a diagram pointing out the pellet so i would know?

 

Look at the key. It is the black thing with the silver line in it.

 

i thought i needed the resistance for the original key for my car to bypass the vatts??,remember i got a 94 key along with the column

 

You can also bypass the whole thing.
http://www.youtube.com/watch?v=AKfn7J9CeZM

 

but will my 94 key work on the 96 if i bypass it this way:hmm:

 

my car is starting up but not turning on,im thinking the 94 key is not sending the right signal to the 96computer letting it to start because it dont reconice the 94 keys pellet or resistance

 

there is a box hidden under the dash that reads the chip, the column has nothing to do with it...

measure the chip in the key, get the resistor for that key...under the dash, drivers side there is a orange casing with 2 wires in it and a plastic connector that you can disconnect leading up the column...the wires will be purple or gray.

take the 2 wires that are going under the dash away from the column, connect the resistor to those to wires and VATS is bypassed for good. you dont need a chipped key anymore

 

measure the chip in the key for the 96 since thats what the box is programmed to recognise...get that value resistor...shouldnt take more than 10 minutes to complete the whole job

 

ok...as i read you dont have the 96 key...purchase all 15 resistors. one will work....they are cheap, dont worry. the stereo shop usually gives them to me no charge

 

yes i dont have the 96 i do have a 94 key with the 94 column in the car now,so you saying try 1 resistor at a time??? i seen the guy in the video posted on the first page use like 3 together

 

wow guess no need to go to the gm dealer,thanks pimpin,i hope to have time tomarrow to try this after work ,i will keep you guys updated and if i need more help i will check with yall,thanks so much:welcome:

 

the guy in the video COMBINED three resistors because he did not have right one.
If you do not have an ohmmeter, just take the key to RadioShack and ask them to measure, you can buy the correct resistor at the same store for less than 1$.

 

right on, so let me get this straight,i need to know the resistance of my 94 key not the original 96 key im i correct?

 

You only need to know what the pellets resistance is for the Factory Key. The column from the junk yard,the key is the only thing that will work with the key cylinder. If you did not want to do the bypass,you can take the key to the new column along with the title to the car to the dealer and they can cut a new key to fit the new column along with original pellet

 

Holy moly this one got confusing.

What you need is the resistance value from the ORIGINAL 1996 KEY. You would then order a key from eBay for like $3 with that resistance. Then you take your 1994 key to Home Depot (or whatever) and have the eBay key cut the same way.

But if you don't have the ORIGINAL 1996 KEY, then you don't have the original 1996 resistance value. It's a value the PCM is looking for - it has nothing to do with the column. So, you'll have to bypass the VATS system as people described earlier. Put a resistor in the circuit so the PCM sees the correct 1996 value. Since you don't know what that resistance value is, you'll have to buy all 15 resistors. You can get them online from Radio Shack. My experience with them locally is that they stock less and less of this stuff. The chances that they'll have all 15 in stock would be slim. Or, you could buy them at random until one works.

Once you find the proper resistance, you can either keep the system bypassed or get the correct key and have it cut so that the system functions normally.

 

or if you have the ccm from the 94 that the key and column came from just switch it over, yes there the same the whole vats system is in the ccm

 

Yes - I stand corrected. The CCM sends a signal to the PCM once it sees the right resistor value. The PCM then fires the injectors. Swapping the CCM would work...

 

turbo, thats why i said goto an audio shop for the resistors...they stock hundreds of them as they are used for remote start alarms and they are the exact values you need, if you gotp radioshack, you have to guess and daisy chain several together...I prefer one and done

 

What about the key, the lock cylinder, and the CCM?

 

wheres the ccm located? i had got the trunk computer box from the 94 but found out the plugs are different and will not work

 

Here:

 

ok well i do have the ccm from the 94 but like i said they dont share the same plugs so i guess i just got to get the resistance from the dm dealer and just go that route

 

the ccm is the same from 93-96 are you looking in the trunk under drivers side speaker? they are the same