Vats bypass

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=30035
Printed Date: May 19, 2024 at 6:40 AM

Topic: Vats bypass

Posted By: jimustanguitar
Subject: Vats bypass
Date Posted: April 09, 2004 at 2:54 AM

i have a 1990 gm with a vats key system and am installing a remote starter on it. code alarm told me that i could rig up a bypass module for it with a resistor (the same as that in the key's pellet) and a relay, but their fax didn't go through properly though, and this is the first time that i felt like rigging the system instead of just buying the module, so does anybody have a schematic that will work for me?

Replies:

Posted By: Big Dog
Date Posted: April 09, 2004 at 8:39 AM

try this:
ignition 3 is a negative signal out from remote starter
posted_image

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Prepare your future. It wasn't the lack of stones that killed the stone age.

Posted By: ccaudio
Date Posted: April 09, 2004 at 7:07 PM

all you have to do is find the 2 wires xcoming from the steering column in the sleeve(not the yellow sleeve though)cut the sleeve and measure the resistance of your key and put the resistor on the wires.

Posted By: Javelin3o4
Date Posted: April 09, 2004 at 9:53 PM

I done the VATS bypass in my 90 firebird, just measure the resistance in your key, if your alarm came with some resistors use the one that matches your key. as for the wiring you can go to this link for the rsx 3.5 and go to page 30 for the diagram.

https://www.directed.com/guides/manuals/ig/clifford/N919564_6-03.pdf

Posted By: Big Dog
Date Posted: April 13, 2004 at 8:11 AM

Hey ccaudio,
If you put a resistor in parallel on the wires it will sum the resistor pellet in the key to the added resistor thereby giving the wrong value and the key won't start the car.
Some guys simply cut the wires and place the resistor in the circuit leaving the wires from the column unconnected.
NEITHER OF THESE METHODS ARE THE CORRECT WAY TO DO VATS.
You HAVE to use a relay as shown above!

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Prepare your future. It wasn't the lack of stones that killed the stone age.

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