Randy T.
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Post by Randy T. on Sept 16, 2009 7:06:25 GMT -6
Thanks buckrgers!
I installed it last night, and it's working great! Thanks again for the writeup, cbburtraw!
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Post by nme617 on Apr 14, 2010 12:30:46 GMT -6
i need help with this i dont know what grey wire to cut there are a few under here and i freaking out a lil i just paid a grand into this car for pcm and a tune up and such and now key not working i dont see no heavy grey wires like in these piks i knwo i have a number 4 key chip i just got a new key and it didnt fix problem so now i need to try this and there no thick grey and light greay wire unless there wrapped in something help please
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Post by nme617 on May 10, 2010 17:52:01 GMT -6
ok so if anyone has a problem finding the resistors u need to match your key if it is a #4 or under wich my my radio shack does not sell that small of them YES U CAN USE YOUR CHIP just splice enough of the two white wires to wrap around the chip and wrap it in electrical tape so it dont go no where and tada it works took me under 5 mins to do whole job
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Post by footballerdt on Jul 2, 2010 0:29:42 GMT -6
I am having this problem, however, when we used the ohms tester we were unable to get a reading to buy the correct resistors... any suggestions?
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Post by snigood on Jul 2, 2010 8:36:03 GMT -6
You have a couple of choices. Go to radio shack and purchase a potentiometer that falls into the ranges for keys 1-11 resistances. Use you DMM to set the resistances using the pot's dial. Try for each key resistance.
You could also purchase different resistors and string up 11 different resistor sets like the write up describes and try one at a time.
Other than that buy the eleven different uncut resistors key from ebay have them cut and try each one.
Option one is easiest,fastest and cheapest.
Ultimately you can call a lock smith and they may have a tool to read resistance (?) or they may do the resistor thing.
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Post by footballerdt on Jul 9, 2010 14:41:03 GMT -6
has anyone thought about putting in a push button in the wiring loop instead of making the wiring unplugable?
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fatjock
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Reality is an illusion caused by lack of alcohol
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Post by fatjock on Jul 12, 2010 20:03:59 GMT -6
Thought about it, yes.
Done it, no.
However I did this mod prior to learning that it wasn't really a VATS problem I had, so I simply reconnected the original circuitry (I did fit quick disconnect plug/sockets, and still have the resistor pack in my trunk if needed).
It wouldn't be difficult to put a concealed interruptor switch in-line, but since I went back to original, a VATS key is still required I saw no need for it.
But for those with the by-pass active, it could be a useful anti-theft device.
All you would have to do is route either side of the by-pass wiring via a single pole single throw "push on, push off" switch, (Such as Radio Shack Catalog #: 275-617 ) which you would mount in an easily accessible, concealed position.
Push on to route the signal via the bypass, Push off to open the circuit. So as you exit the car, you turn off, effectively disabling the start, just remember to turn it on before attemnpting to start yourself.
Of course, this wouldn't stop a determined thief, and if you are really sensitive about security, you could make this a key-switch, with a seperate key.
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Post by footballerdt on Jul 15, 2010 23:39:35 GMT -6
Ok thank you for this write up! Finished it earlier and worked like a charm. However, reading resistors out of a multipack is a PIA! Also, down the line I plan on putting in the push button for added security. Just ran out of time and patience tonite.
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XJSman89
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Post by XJSman89 on Aug 27, 2010 9:41:31 GMT -6
Also, I pulled this from a different site a while ago about the possible values and associated acceptable resistor values for the PassKey II system. Each resistor pellet has a numeric value that corresponds to a range of resistance as shown below: Value K OHMS 1 0.402 (acceptable range .386-.438) 2 0.523 (acceptable range .502-.564) 3 0.681 (acceptable range .650-.728) 4 0.887(acceptable range .850-.942) 5 1.130 (acceptable range 1.085-1.195) 6 1.470(acceptable range 1.411-1.549) 7 1.870(acceptable range 1.795-1.965) 8 2.370(acceptable range 2.275-2.485) 9 3.010 (acceptable range 2.890-3.150) 10 3.740(acceptable range 3.590-3.910) 11 4.750(acceptable range 4.560-4.960) 12 6.040(acceptable range 5.798-6.302) 13 7.500(acceptable range 7.200-7.820) 14 9.530(acceptable range 9.149-9.931) 15 11.801 (acceptable range 11.320-12.290) As a side note: I found this VERY helpful, especially if you don't have a multimeter handy. I went to the dealership to get a new key a while back. They used my VIN and were able to look up what "value" my key had. If you don't have a multimeter (or want to be sure you have the correct resistance) then you can have a dealer look it up.
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Post by ahborah on Sept 23, 2010 7:21:15 GMT -6
Does this bypass your key resistor? should you alter your key?
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XJSman89
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Post by XJSman89 on Sept 23, 2010 13:54:58 GMT -6
The key resistor simply isn't used any more. The system that reads the resistance won't make it all the way to your ignition; it goes through the resistors that you wire in yourself. You don't need to alter your key at all. This mod actually makes it so that you can use a cheap non-resistor key from your local home improvement store instead of the $70 ones at the dealer with resistors in them.
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Post by clutch1 on Jan 28, 2011 17:49:26 GMT -6
Just another update on this thread.. did it on my classic today because it was acting up. Worked like a charm.
I didn't read this damn tutorial though and took the column apart and grabbed the wires at the key cyl... DUMB. This guide's location is much, much easier. ha
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Post by nelson480 on Jan 28, 2011 18:28:57 GMT -6
My car has remote start, that means passkey is disabled right?
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Post by clutch1 on Jan 28, 2011 22:51:38 GMT -6
Depends,
They do make bypass modules for this.. basically it wires into the two VATs wires, learns the resistance, then everytime the remote start turns on the bypass unit powers up and shows those two wires the proper resistance to byass it.
Or when the remote start was installed they just bypassed it with a resistor as described here.
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XJSman89
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Post by XJSman89 on Feb 8, 2011 14:43:38 GMT -6
^^ That's the bypass that I have, clutch. It only works when I use the remote start though, I'm still going to need to do the bypass for the ignition.
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Post by clutch1 on Feb 9, 2011 1:27:02 GMT -6
Once you bypass it with the resistor you can remove the bypass you have in there currently and sell it or put it on the shelf for later use, btw.
Or if you'd like to use the current bypass to bypass it when started with the key, wire up a relay to give the blue wire from the bypass ground when the ignition wire is powered up.. then then bypass turns of whenever the ignition is powered up. Just cut off the rest of the VATs wires heading up to the key itself so it doesn't get confused, though.
But a resistor is quite a bit easier, lol!
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XJSman89
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Post by XJSman89 on Feb 9, 2011 10:10:40 GMT -6
Haha yeah I imagine it would be. So once the resistor is wired in you don need the bypass for the remote start anymore? It makes sense, just making sure tho. Will it not remote start if I keep the alarm's bypass in there, or it just doesn't do anything anymore?
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Post by clutch1 on Feb 9, 2011 11:55:35 GMT -6
Correct, it's unneeded.
I'd cut it out, if I were you, once it's bypassed. Just because having two resistances could possibly screw up the computer's reading, confusing it.
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XJSman89
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Post by XJSman89 on Feb 9, 2011 13:25:10 GMT -6
Cool, I'll do that. Just cutting it out at the right places shouldn't be too hard to do, That way I can label the wires and reattach it if need be.
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Post by clutch1 on Feb 9, 2011 20:38:25 GMT -6
You could just unplug it, as well
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XJSman89
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Post by XJSman89 on Feb 10, 2011 11:08:57 GMT -6
That would make too much sense.
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Post by powertool on Jul 16, 2011 9:21:59 GMT -6
hello this is powertool have a no start, checked no power to starter and dic does not work should i try this vats?
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Post by powertool on Jul 16, 2011 12:06:56 GMT -6
i have a 97 cant find dark grey wire could if be a different colour
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Post by dkerley03 on Aug 4, 2011 19:40:00 GMT -6
Big problems, creative solution? I had problems with my VATS ignition and key! I was planning on fixing it with the resistor. My teen son lost my only key and key fob! I have been pricing switch, key, key fob and reprogramming! So my thoughts were to buy a combination aftermarket alarm system with remote start and bypass the whole mess! I know I will have to bypass the vats security and the old ignition switch and disable the steering wheel lock? So give me you thoughts good and bad. Thanks Dennis in Fort Lauderdale
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bobsblue95
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Post by bobsblue95 on Aug 4, 2011 22:19:23 GMT -6
A GM dealer or some locksmiths should be able to make you a new key from the vin#. Probably about $100-200. Another 100 for remote and programming unless you do it yourself. I got mine for $7 on ebay. Bypassing the original ignition switch is no trivial task, there are many circuits in there. This ain't no volkswagen! You might be able to get a new tumbler and key from a salvage yard, or even someone on the list with a parts car. The tumbler assembly is pretty easy to change, aside from the vats wire. Just cut and splice in the new one (soldered and heat-shrinked if possible), because you will probably have to add a resistor to compensate for the different key. I did this when I swapped my ignition tumbler from my parts car and the keys had different values. One big problem is you don't know what value resistor your old key had. I'd recommend going to a dealer for a key.
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Post by dkerley03 on Aug 5, 2011 8:11:48 GMT -6
I do know the value of my Key, I checked it to but resistors and saved the value in my iPhone my key was a VATS #5 with the value of 1.134k. So if I understand I need the a matching ignition switch and key, install my correct resistor to bypass VATS. Buy another key fob and I will be able to drive and use my car again! Thank you for the input
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Post by ntrenn on Aug 5, 2011 9:24:34 GMT -6
By far, the easiest way to get a new key is to order it from the dealer cut to the VIN. Last one I bought was under $40 for the key ready to go. Call your dealer. Take your registration and DL number - they can't cut the key without both.
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Post by dkerley03 on Aug 8, 2011 16:09:36 GMT -6
Thank you for the advice. I have ordered a key fob from ebay and will get a dealer to cut me a key!
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Post by dkerley03 on Aug 11, 2011 19:04:14 GMT -6
I have my new keys, waiting on my key fob to arrive, but may be needing a new battery!
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Post by mhellrazor83 on Aug 24, 2011 2:46:18 GMT -6
I have a 95' and I searched and searched for that dark gray wire. Finally found it and cut it in the middle but it looks like just one wire not two. When I stripped the wire there is only the outer gray and no white... Is this the right wire or I just messed up?
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