Experiencing problems with your VCDS scanner? Auto-scan failures can be frustrating. This article details troubleshooting steps for a common issue encountered after updating VCDS software, specifically focusing on a 2016 Audi Q7 (4M). We’ll explore the problem, potential solutions, and the importance of working with Ross-Tech support for a resolution.
VCDS Auto-Scan Failure After Software Update
After updating from VCDS version 18.9 to versions 19.6.0.4 and 19.6.0.6, a recurring auto-scan issue was observed on a 2016 Audi Q7. Despite updating the HEX-NET interface firmware to the latest version, the auto-scan consistently failed. Previously, with version 18.9, the auto-scan functioned flawlessly.
The error message “Function not supported by the gateway” appears upon initiating an auto-scan. Repeatedly clicking the “Gateway installation list” sometimes allows the scan to proceed. However, attempting a full auto-scan results in only 4 or 5 modules being identified, instead of a complete vehicle scan. Furthermore, the scan sequence starts with Module 17 (Instruments) instead of the expected Module 01 (Engine), as was the case with the older software version.
Initial Troubleshooting Attempts and Observations
Collaborating with Ross-Tech support is crucial for resolving this issue. While a solution is being investigated, reverting to VCDS version 18.9 might offer a temporary workaround. The problem likely stems from compatibility issues between the newer VCDS software and the vehicle’s communication protocols.
One notable difference observed is the change in the starting module during the auto-scan process. In the older version, the scan initiated with the Engine module (Module 01), while the newer versions begin with the Instruments module (Module 17). This change might indicate an alteration in the scanning algorithm or communication priorities within the VCDS software.
Detailed Error Codes and Further Analysis
The partial scan results reveal that only four modules (0E-Media Player, 47-Sound System, 57-TV Tuner, and 5F-Information Electr.) were successfully accessed. Within Module 5F (Information Electr.), two specific fault codes were registered:
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6936 – Function Restricted due to Missing Message(s) U1111 00 [008] – Indicates a communication breakdown, potentially caused by missing or corrupted messages between the VCDS scanner and the module. The detailed error message points to a timeout error with the Night Vision system (0x18).
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7192 – Function Restricted due to Missing Message(s) U1111 00 [008] – Also suggests a communication problem. The specific error points to an unsuccessful retry attempt in communicating with the Night Vision system.
These fault codes further emphasize the likelihood of a communication issue between the VCDS software and the vehicle’s systems.
Conclusion and Next Steps
The auto-scan failure after updating VCDS software presents a significant obstacle in diagnosing and troubleshooting issues on the 2016 Audi Q7. The “Function not supported by the gateway” error, coupled with the incomplete scan results and specific fault codes, strongly suggests a communication problem. Working closely with Ross-Tech support is paramount to identifying the root cause and implementing a solution. Reverting to the older, functioning VCDS version (18.9) might provide a temporary workaround while awaiting a permanent fix. This detailed analysis underscores the importance of staying updated with the latest information and support resources when using a VCDS scanner.
