What are Automotive Transponder Keys?
The biggest change to the automotive industry in recent times has been the introduction of the built in immobiliser system on all modern cars. This involves placing a microchip in the head of the transponder key, which is a miniature transmitter and receiver. There is an engine management system in the engine compartment that can recognise the signals transmitted from the transponder key. If the correct signals are not detected the engine will not start.