Key chip
Le Mans Master
Joined: Jan 2006
Posts: 5,620
Likes: 206
From: Orlando FL
If you have your current key, you can measure the resistance and check the code key chart and figure it out.
# Value Range are in K ohms (1000)
1 .402 .386-.438
2 .523 .502-.564
3 .681 .650-.728
4 .887 .850-.942
5 1.130 1.085-1.195
6 1.470 1.411-1.549
7 1.870 1.795-1.965
8 2.370 2.275-2.485
9 3.010 2.890-3.150
10 3.740 3.590-3.910
11 4.750 4.560-4.960
12 6.040 5.798-6.302
13 7.500 7.200-7.820
14 9.530 9.149-9.931
15 11.800 11.320-12.290
Last edited by pcolt94; Dec 15, 2017 at 10:52 PM.
Le Mans Master
Joined: Jan 2006
Posts: 5,620
Likes: 206
From: Orlando FL
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Team Owner
Joined: Sep 2003
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Single side VATS blanks are the same for any year GM that uses VATS through '96. Some VATS changes to double-sided in '97 - the C5 is an example. I don't believe that any other double-sided preceded '97.
Here's a chart I've seen previously for VATS INFO - I've never used it. I've a GM Interrogator that I've used quite frequently. If you have a dealer do a 'key request' for you they will get a 'letter code' response from GM if it's available. For most years it isn't with the request any longer.
If you meant for an eBay search, then "Strattec XXXXXX" (xxxxxx = part#) will get you results and also include usually the correct associated GM # if you're interested in an OE. If you do Strattec or Briggs & Stratton it will be 'same as' OE. Ilco and others not.
Here's a chart I've seen previously for VATS INFO - I've never used it. I've a GM Interrogator that I've used quite frequently. If you have a dealer do a 'key request' for you they will get a 'letter code' response from GM if it's available. For most years it isn't with the request any longer.
If you meant for an eBay search, then "Strattec XXXXXX" (xxxxxx = part#) will get you results and also include usually the correct associated GM # if you're interested in an OE. If you do Strattec or Briggs & Stratton it will be 'same as' OE. Ilco and others not.
Last edited by WVZR-1; Dec 16, 2017 at 11:00 AM.
Racer
Joined: Mar 2017
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From: Engelhard NC
Drifting
Joined: Feb 2006
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From: Magnolia Tx
Team Owner
Joined: Sep 2003
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Melting Slicks
Joined: Oct 2016
Posts: 2,024
Likes: 363
From: Central Alabama
When I went to the local dealer, they couldn't tell me what key I needed because their reader box had broken and couldn't see the value in having it fixed. The VATS system is too old.
They did offer to do the cut for free if I found the correct key and brought them in.
They did offer to do the cut for free if I found the correct key and brought them in.
Le Mans Master
Joined: Jan 2006
Posts: 5,620
Likes: 206
From: Orlando FL
That's how I have done it.GM doesn't support the C4 anymore and the dealer really does not care about your key and getting their machine fixed even though they might be nice people. Its just a ohm meter in a fancy box. You're going to wait a long time.
Go to the locksmith and get it done and get on with you life.
Safety Car
Joined: Jun 2006
Posts: 4,008
Likes: 1,487
From: Ashland, OH
I wasn’t exaggerating either. The girl working there checked the resistance on my key, went to the shelf and had it done in 5 mins or less. I went out and tried them, both were spot on. It was $20 and I was done.
Last edited by Cjunkie; Dec 24, 2017 at 10:33 AM.