: Plug the OBD connector into your car's diagnostic socket.
Ensure the battery voltage of the car is at least 12.5V. Low voltage can cause communication timeouts.
: Connect the OBD2 connector to your car's diagnostic socket and turn the ignition ON . Run VagTacho.exe from your computer.
: Disable any antivirus software before extracting the installation files, as these programs often flag automotive diagnostic software as false positives. Step 1: Driver Installation