https://nerdgaming.science/wik....i/Why_Programing_Car
What Are the Different Types of Key Programming? Car key programming is a process that lets you have an additional key for your car. You can program a key at the dealership or hardware shop, but this is typically a lengthy and expensive process. A specialized tool is needed to perform key programming, and these tools are usually bidirectional OBD-II tools. These devices can collect PIN codes, EEPROMs, and modules from vehicles. Transponder codes Transponders are four-digit code that is that is used to id