How many resistance values does the VATS system have?
Over all there are 15 different resistance values on the single sided VATS keys and 14 on the double-sided keys.
What is a VATS bypass module?
Vats bypass module is intended for use when installing a GM engine equipped with the PASSkey I or II VATS (Vehicle Anti Theft System) into a vehicle missing the BCM (Body Control Module), or for remote start system.
How does the GM VATS system work?
The VATS system can control the ignition, starter, and fuel pump on any given vehicle. All of the systems that are controlled by the VATS system are disabled when the ignition is turned off. When the VATS system detects the proper key, it activates these systems.
Can you bypass GM passlock?
The easiest way to bypass the Passlock 2 system is to place a resistor between the passlock sensing wire and the ground reference wire. To find these wires, look for three wires that at some point are wrapped together, coming from the ignition barrel. Usually, they are orange/black, red/white, and black.
What is a VATS bypass kit?
VATS bypass module is intended for use when installing a GM engine equipped with VATS (Vehicle Anti-Theft System) into a vehicle missing the BCM (Body Control Module), when resistor type bypasses just wont work, or for use with remote starting applications involving stock vehicles equipped with VATS.
When did GM stop using the letters on the key fob?
I believe GM stopped manufacturing cars that used the lettered keys in 2002. The keys were usually grouped in lettered pairs, which include: (A, B), (C, D), (E, H) and (J, K).
What if I don’t have the key resistance number?
If you don’t have this number we can interrogate your car to find it. Over all there are 15 different resistance values on the single sided VATS keys and 14 on the double-sided keys. We insert the key into the ignition shaped slot. The machine tests the resistance of the key and tells us the number.
How do you measure the resistance of a key?
In order for you to measure the resisters resistance, place one lead of the ohm meter on the metal prong on one side of the key, and the other lead on the metal prong on the opposite side. With the leads in there proper position, a resistance value can be measured by the ohm meter.
When did GM stop using square and round key blanks?
General Motors began using the older style lettered square and round key blanks back in 1968, and they continued to use the blanks into the 2000’s. I believe GM stopped manufacturing cars that used the lettered keys in 2002. The keys were usually grouped in lettered pairs, which include: (A, B), (C, D), (E, H) and (J, K).