How to Check the Key Code of a Car?

[McKeegan]

Generally, there is a metal tag or plastic strip on the car key ring. After scratching off the coating, you will find the password, which is used by the manufacturer to make a duplicate key. You can also go to a 4S shop and use the VIN number on the windshield of the car, which is essentially the car's ID number. The staff can then query the key code from the backend. Below is an introduction to the remote key: 1. Advantages of the remote key: The remote key allows you to unlock and lock the door from a distance without inserting the key into the keyhole. Its greatest advantage is that, regardless of day or night, you can conveniently unlock and lock the car from a distance without needing to locate the keyhole. 2. Principle of the remote key: The key emits a weak radio wave, which is received by the car's antenna. The electronic control unit (ECU) identifies the signal code, and then the system's actuator (motor or electromagnetic coil) performs the unlocking/locking action. The system mainly consists of two parts: the transmitter and the receiver.