sat in the driver's seat of his MK4 Golf, the glowing screen of his laptop casting a pale blue light over his tired face. He had spent the last three hours trying to program a new key, but the software refused to cooperate.
If your Device Manager shows the device as but with an error, you may need a specialized "FTDI Unbrick" utility to reset the PID to 6001. Summary Checklist Are you using COM1 or COM2 ? Did you install drivers manually from the VAG Tacho folder ? Is the ignition turned on ? Is the Red LED on the cable lit up? vag tacho interface not found full