How do you bypass vats system?

VATS is usually a GM (General Motors), system for helping prevent vehicle thefts.

There are several different procedures depending upon the year and make of the vehicle. Search the internet for "VATS Bypass".

I bypassed the vats on a 1996 Buick by accessing the wiring diagram for the VATS. I measured the resistance of the key chip. There are 15 different values it can be. It is simply a resistor. In this case, the chip measured 3000 ohms. I went to Radio shack and got a combination of resistors that would give me 3000 ohms. There are 2 wires that come out of the VAT module and go up the steering column to the key switch. I located the VAT module behind the glove box. I cut those two wires and soldered the resistors in so that the module always saw 3000 ohms. You have to solder the resistor on the module side, not the key side.