While it works on many older cars, it is primarily intended for pre-CAN or early CAN bus models (e.g., Golf Mk4, Audi A3/A4/S4 B5-B6, Passat B5/B5.5).

The cable must feature the genuine FTDI FT232RL or FT232RQ chip for stable baud rate communication. Cheap clones with CH340 chipsets frequently fail or drop connections during read/write cycles. Operating System Compatibility

Directly rewriting an EEPROM chip bypasses standard safety protocols built into commercial diagnostic scanners. Risk of "Bricking" Modules