Can Car Mechanical Keys Be Duplicated?

[VonAlan]

Car mechanical keys can be duplicated, just like duplicating door keys. However, car keys with built-in chips must be duplicated at a professional 4S shop. Keys duplicated by yourself can be used to open car doors but cannot start the car, because the original key contains an anti-theft chip that requires specialized decoding and encoding equipment for duplication. The functions of a car mechanical key are: 1. Closing windows after turning off the engine; 2. Locating the car in a parking lot; 3. Automatically opening the trunk; 4. Remotely opening windows; 5. Opening the driver's side door. The principle of a car mechanical key is: it consists of a transmitter and a receiver, powered by a battery, emitting low-frequency radio waves from the key. The car antenna then receives the radio wave signal emitted by the key, which is identified by the electronic control unit (ECU) with a specific signal code, and the system executes the actions of locking and unlocking.