Plug the interface into the vehicle's OBD-II port and turn the ignition ON (engine off) before running the connection test.
The 21.9.0 update included new and revised .ROD files, which are essential for decoding data from newer ECUs. Without these, many modules would show "Unknown" or error codes. Vcds Release 21.9.0 Download
A comprehensive sweep of all vehicle control units to identify fault codes. Live Data Monitoring: Plug the interface into the vehicle's OBD-II port
To ensure a stable connection between your laptop and your car, your computer should meet these minimum specifications: VCDS 21.9 Installation Guide | PDF - Scribd A comprehensive sweep of all vehicle control units
However, if you have a HEX-V2 or HEX-NET that supports automatic firmware updates, consider moving to the latest stable release instead. Newer versions include better support for all-electric architectures, faster cloud-based label lookups, and improved security.