The transponder is a computer chip that is placed inside the head of the ignition key. This chip has an embedded code, uniquely defined to each key, which emits radio signals to another device installed in the car. The signals transmitted are predetermined radio frequencies that are identified by the device installed behind the steering wheel. After the identification, the device verifies the code and performs the functions that it had been asked to. In case the code is not recognized by the device, it will not unlock the car door or start the engine. Thus, only the owner who is in possession of the key will be able to start the car.
The transponder key gives the owner an access to the vehicle through keyless entry. A singl
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