Enabling Traffic Sign Recognition (TSR) using VCDS in vehicles like the VW Atlas can be challenging. Many users encounter errors such as “Error – Dynamic road sign display” and “No road signs available” despite having the necessary hardware (e.g., 3Q0-980-654-A camera). This guide explores common VCDS coding adaptations and addresses the frequent issue of missing speed limit signs on the navigation screen after attempted TSR activation.
Common VCDS Coding Adaptations for TSR
Several adaptation channels within VCDS are believed to be crucial for TSR functionality. These include modifications within Address 5F (Information Electr. Control Unit), Address A5 (Front Sensor Driver Assist), and Address 17 (Instruments).
Address 5F Adaptations
Within Address 5F, the following adaptations are often adjusted:
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Car_Function_List_BAP_Gen2-traffic_sign_recognition_0x21: Activating this setting theoretically enables TSR within the vehicle’s function list.
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Car_Function_Adaptations_Gen2-menu_display_road_sign_identification: This adaptation controls the visibility of TSR information within the vehicle’s menus.
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Car_Function_Adaptations_Gen2-menu_display_road_sign_identification_over_threshold_high: This setting potentially manages the display of road signs above a specific speed threshold. Experimenting with both activated and deactivated states is common during troubleshooting.
Address 5F Long Coding
- Byte 24, Bit 6 (byte24 vza): Toggling this bit between activated (1) and deactivated (0) is another common attempt to enable or disable TSR-related functionality.
Address A5 Long Coding and Adaptations
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Security Code 20103 > Byte 16, Bit 4 (VZE): This coding modification, requiring a security access code, is often associated with enabling or disabling specific driver assistance features, potentially including TSR.
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Road sign detection fusion mode: Switching between “Road sign detection” and “Road sign fusion” within the adaptation channels of Address A5 may influence how the system processes road sign information.
Address 17 Long Coding
- Byte 5, Bit 2 (Road sign detection): Setting this bit to “Yes” aims to explicitly activate road sign detection within the instrument cluster.
Restoring Missing Speed Limit Signs
A common side effect of unsuccessful TSR activation attempts is the disappearance of speed limit signs from the navigation screen. Unfortunately, a definitive solution for restoring these signs remains elusive. Further investigation and community input are needed to address this issue.
Conclusion: The Challenge of ADPMap VCDS and TSR
While the Adpmap Vcds software provides access to numerous vehicle control modules, enabling TSR remains a complex and often frustrating process. The variety of coding adaptations and the lack of clear documentation contribute to the difficulty. Continued experimentation and sharing of successful coding configurations within the VW/Audi community are essential for unlocking the full potential of TSR using VCDS. Further research into restoring missing speed limit signs on the navigation display is also crucial.
