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. The VATS bypass module generates the ‘key ok' signal normally sent from the BCM to the PCM (Powertrain Control Module) or ECM (Engine Control Module).
VATS bypass module wires: RED: 12V ignition of accessories WHITE: Fuel Enable wire. 50hz or 30hz. BLUE/GREEN: Control wire. If none of the wires connected to the ground then the output is 50 Hz suitable for most of the cars. Some cars (90-93) require 30 Hz. In that case connect the Blue wire to the Ground. BLACK: Ground.
Download manual at: http://bit.ly/gmvats6