Today, transponder technology is becoming more prevalent in many areas in which security access is required, as well as in modern cars which use this technology for security purposes. There are now new keys that have a transponder chip, and when the key is inserted into the ignition barrel, the chip is activated by the radio frequency signal coming from the ignition barrel, and as a result, the vehicle is turned on. As a result of the chip transmitting a signal to the car's ECU, that signal disables the immobilizer so that the engine can start, if the signal is found to be correct.