https://perfectworld.wiki/wiki..../What_Is_Car_Keys_Pr
What Are the Different Types of Codes and How Do They Work? In contrast to older keys, modern car keys have chips in them that are specific to each vehicle. This stops thieves from taking the key and then turning on the car. The keys are usually bought from a dealer or cloned by locksmiths. The process of the manufacturer varies however, it involves turning the ignition key to the "on" position, without activating the vehicle, and then removing the key after the time frame. Transponder Codes Whe