Ensure your KKL cable is set to COM1 or COM2 in Windows Device Manager for the best compatibility with the software.

For many DIYers, this tool is the "missing link" for repairs. For instance, if your (the "clocks") fails, you cannot simply swap in a new one because the immobilizer will prevent the engine from running. By using the VAG EEPROM Programmer, you can read the SKC (Secret Key Code) from the old unit and write it to the new one, or match the internal data so the car recognizes the replacement part. Safety and Risks

[ Vehicle OBD-II Port ] <---> [ KKL 409.1 FTDI Cable ] <---> [ PC USB Port ] Operating System Configuration