The VAS 5054A is a universal diagnostic interface for the vehicles of the Volkswagen Group and all OBD vehicle systems from other manufacturers. The integrated Bluetooth interface connects the vehicle with a notebook, desktop PC or test system. No cables are needed for vehicle diagnostics using the VAS 5054A.

The range of the wireless Bluetooth connection is 5 to 10 meters, depending on the environment and the type of Bluetooth adapter used on the PC side. The Serial Port Profile (SPP) is used for data transfer via Bluetooth. Different Bluetooth security levels are supported.

The following vehicle bus systems are supported:
§ K line (ISO9141-2)
§ High-speed CAN (ISO 11898-2)
§ Low-speed CAN (ISO 11898-3)
§ J1850 (SAE J1850)

The vehicle protocols are handled directly in the VAS 5054A.
This ensures fast response times and a reliable real-time behavior independently of the PC operating system. Every time a connection is established, the VAS 5054A software is synchonized with the version installed on the application PC. The VAS 5054A thus automatically adopts any new features provided after a new software version has been installed on the application PC.

The diagnostic application and the associated Diagnostic Base System are installed on the application PC. The Diagnostic Base System can access the VAS 5054A via Bluetooth or USB.