Alientech 144300K259 KESSv2 – VAG DSG DQ500 16 pin Connector

Key details

• Model / Part Code: 144300K259

• Connector: 16‑pin diagnostic/TCU cable

• Compatible Systems: VAG‑group transmissions with DSG DQ500 type TCU

• Usage: Links tuning tool (like KESSv2/KESS3) to the DSG DQ500 transmission control unit for read/write, diagnostics, and tuning.

• Construction: Typically ABS‑coated cable with secure 16‑pin connection.

 Typical purposes

• ECU/TCU programming: Needed for reflashing or tuning the DSG gearbox.

• Diagnostics: Helps read fault codes and real‑time data from the transmission module.

• Firmware updates: Ensures the TCU is running correct/updated firmware when used with tuning software.