Bypassing gm vehicle anti-theft systems (vats) – Avital AviStart 3000 User Manual

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bypassing GM vehicle anti-theft systems (VATS)

Vehicles with the GM VATS (Pass Key) systems have a resistor embedded in the ignition key. If the VATS decoder

module does not measure the proper resistance when the vehicle is started, the starter and fuel pump may be

disabled for up to ten minutes. The system includes a "VATS pack" of resistors. One will match the resistor in the key.

The VATS wires will be two very light-gauge wires coming out of the steering column. The colors of the wires vary,

but they are often contained in orange tubing. Determine the value of the resistor in the key. Then follow the

diagram below to bypass VATS during remote start operation. If the BLUE status output has been programmed for

factory security re-arm, use the BLUE/BLACK Ignition 2 output to control the relay.

NOTE: When connecting to the VATS wires, it is not important which wire is cut.