Many GM Vehicles have a little metal chip in the key. This means your car is equipped with GM's anti-theft device called VATS ( Vehicle Anti Theft System ).
How it Works: Inside the Ignition Key Cylinder are two very tiny wires that connect on either side of the chip when the key is inserted. This allows a signal from the engines computer to travel through the chip in the key and then start the vehicle.
The Problem: These two tiny wires tend to get bridle and break and the contact points that touch the key also become worn and no longer carry the signal.
Bypass procedure: What you need to do is use a multi-meter and measure the ohms of resistance of the chip from one side to the other. (thats right, the chip is just a resistor). Once you have the measurement, take yourself over to Radio Shack and buy one for around $1.29. Look below the column for this 2 tiny wires and expose them(you do not need to take the column apart) Install the resistor and you are good to go.
Wednesday, September 03, 2008
Bypass the GM Security no start issue
Many GM Vehicles have a little metal chip in the key. This means your car is equipped with GM's anti-theft device called VATS ( Vehicle Anti Theft System ).
How it Works: Inside the Ignition Key Cylinder are two very tiny wires that connect on either side of the chip when the key is inserted. This allows a signal from the engines computer to travel through the chip in the key and then start the vehicle.
The Problem: These two tiny wires tend to get bridle and break and the contact points that touch the key also become worn and no longer carry the signal.
Bypass procedure: What you need to do is use a multi-meter and measure the ohms of resistance of the chip from one side to the other. (thats right, the chip is just a resistor). Once you have the measurement, take yourself over to Radio Shack and buy one for around $1.29. Look below the column for this 2 tiny wires and expose them(you do not need to take the column apart) Install the resistor and you are good to go.
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Not sure why, but everybody around seem to keep calling "VATS Bypass" a simple resistor to install under your steering column or on the TDM's connector. But the problem with that is it will only bypass the key and the lock cylinder, while the entire core of the security system (the TDM or Theft Deterrent Module) still remains in the loop! That trick was born just to add a remote starter and made sense when those cars where all new - no more the case today. ...And guess what? It's exactly the TDM that is well known to die with the age of the car - even before her 10th birthday. That's what happened to my trusty Buick and is happening to other tens of thousands of unfortunate people in North America. Lots of people are even junking their cars since the time GM discontinued the production of the TDM back in Jan 2009.
ReplyDeleteHow To Bypass Vats Bypass