What is a transponder immobilizer?
A. A transponder immobilizer is an anti-theft system that uses radio frequency communication between the ignition key and the vehicle. A transponder equipped vehicle will have a key that contains within it an electronic device that is powered by an electromagnetic pulse generated by a coil surrounding the ignition lock cylinder. The emission of an electromagnetic pulse from this coil, known as an antenna/inductor ring, will be received by the electronic circuit in the key and converted to electricity which powers the circuitry within the key. The powered circuitry now emits a radio frequency signal that includes specific data that is used by the vehicle to establish the relationship of that key to the vehicle.
