VCDS (VAG-COM Diagnostic System) software version 19.6 and later, specifically 19.6.1, have been reported to cause issues with auto-scans on certain VAG (Volkswagen Audi Group) vehicles. Users have experienced problems ranging from “Function not supported by the gateway” errors to incomplete scans, only registering a few modules instead of the entire vehicle system. This guide explores these common issues and potential solutions.
Common VCDS 19.6.1 Auto-Scan Problems
One of the most frequently reported issues is the “Function not supported by the gateway” error message during an auto-scan. This error typically prevents the software from communicating with the vehicle’s various control modules. While repeatedly clicking the “Gateway Installation List” might temporarily resolve the issue, it’s not a reliable fix.
Another problem is incomplete auto-scans. Users have observed that VCDS 19.6.1 might only detect a handful of modules, failing to provide a comprehensive diagnostic report for the entire vehicle. Furthermore, the scan sequence might deviate from previous versions, starting with Module 17 (Instruments) instead of Module 01 (Engine). This change, while not necessarily an error, can be confusing for users accustomed to the previous order.
Potential Causes and Solutions
Several factors might contribute to these auto-scan problems:
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Firmware Incompatibility: Outdated HEX-NET interface firmware can cause communication issues between VCDS and the vehicle. Updating the firmware to the latest version, as prompted by the VCDS software, is often the first recommended step.
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Software Bugs: While VCDS is known for its reliability, software bugs can occasionally occur. Ross-Tech, the developers of VCDS, actively work to identify and address these issues through updates. Checking for and installing the latest VCDS version is crucial.
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Vehicle Specific Issues: Certain vehicle models or specific control modules might have compatibility problems with VCDS 19.6.1. Consulting Ross-Tech’s official forums or contacting their support team can provide valuable insights for specific vehicle-related issues. They maintain a comprehensive database of known issues and workarounds.
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Driver Issues: Problems with the computer’s USB drivers or the drivers for the HEX-NET interface can also disrupt communication. Reinstalling or updating these drivers can potentially resolve the issue.
Troubleshooting Steps
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Update HEX-NET Firmware: Ensure your HEX-NET interface is running the latest firmware. VCDS usually prompts for updates automatically.
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Update VCDS Software: Download and install the most recent VCDS release from the official Ross-Tech website. This ensures you have the latest bug fixes and compatibility improvements.
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Check Gateway Installation List: If you encounter the “Function not supported by the gateway” error, try repeatedly clicking the “Gateway Installation List” within VCDS. While a temporary fix, it might allow the scan to proceed.
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Consult Ross-Tech Support: If the problems persist, contact Ross-Tech support directly. Provide detailed information about your vehicle, VCDS version, HEX-NET firmware, and the specific errors encountered. Their expertise is invaluable in resolving complex issues.
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Consider Reverting to a Previous Version: As a last resort, consider reverting to a previous, stable version of VCDS, such as 18.9, which was reported to work without issues on the affected vehicle in the original post.
Conclusion
While VCDS 19.6.1 introduced valuable features, some users experienced auto-scan problems. By following the troubleshooting steps outlined in this guide and leveraging the support resources available from Ross-Tech, you can effectively address these challenges and ensure accurate vehicle diagnostics. Remember to always keep your VCDS software and HEX-NET firmware updated to benefit from the latest improvements and bug fixes.
