现代高级轿车中均装有发动机电子锁止系统,如Fiat CodeⅡ防盗系统,在拔出车钥匙时这个系统就会自动启动。在每把车钥匙手柄中均内含一个电子装置,每次起动发动机时此装置通过在点火开关内的一个天线环发出一个电磁波,该电磁波经调制后的信号成为电控单元用来识别车钥匙的密码,只有在识别无误的条件下,发动机才能起动。如果电控单元程序错 Modern limousines are equipped with engine electronic locking system, such as Fiat Code Ⅱ anti-theft system, the system will automatically start when the car key is pulled out. Each car key handle contains an electronic device, each time the engine is started, the device emits an electromagnetic wave through an antenna loop in the ignition switch. The modulated signal becomes an electronic control unit used to identify the car key The password, only in the identification of the correct conditions, the engine can start. If the electronic control unit program is wrong