vats system

Printed From: the12volt.com
Forum Name: Car Security and Convenience
Forum Discription: Car Alarms, Keyless Entries, Remote Starters, Immobilizer Bypasses, Sensors, Door Locks, Window Modules, Heated Mirrors, Heated Seats, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=23913
Printed Date: July 07, 2025 at 5:19 AM

Topic: vats system

Posted By: godsegoizhuge
Subject: vats system
Date Posted: January 04, 2004 at 4:42 PM

I'm wondering, i know with the plxr bypass module you wire it in as if your bypassing a passlock 2 system. My question is, could use a 555L to bypass the system also? Only reason why i ask this is because everytime i goto measure the resistance value in the key, i get the wrong value. I found the listing for all of the different ohm resistance that GM used. Also found one that had where the # of the key matched up with what the resistance value is.

Replies:

Posted By: clearman
Date Posted: January 04, 2004 at 11:46 PM

You may have to turn your meter up to 100k or so to get the resistance reading. This reading should be very close to the value that you have matched up to the keys, and you should get the same reading every time, considering that the vehicle must get the same on every time.

Posted By: sroth140
Date Posted: January 05, 2004 at 12:29 AM

try rubbing it with alcohol first. then put it in a vice on the bench and probe it. i usually grip it by the rubber on the key ring part of it so nothing is actually touching the key. that way nothing can influence the resistance in anyway.

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