The Vats Bypass Module #VBM054 is designed for those times when the vats ignition lock fails, due to the wires breaking off in the steering column, up near the head of the lock or the touch pads where the key meets the lock. It is suited for those times when tearing down the steering column is not an options and the security of the key or car is not an issue.
What this VBM054 unit does is redirects (bypasses) the signal that was coming from the from the VATS key, redirects through the Vats Bypass Module, then back to the ECU (Electronic Control Unit). The vats bypass module has all 15 vats values built into the unit. By using the module you create the same signal needed to tell the ECU it is ok to start the car.