2021 Audi Driver Assist Unavailable DTCs B200FF1 B200FF2

Symptoms

Owners of affected 2021 Audi vehicles may experience their driver assist systems becoming unavailable. This condition is often accompanied by specific messages displayed on the instrument cluster. If you are experiencing an Audi driver assist unavailable issue, you might see one or more of the following warnings:

• "Audi pre sense: fault."
• "Traffic sign recognition: fault."
• "ACC with traffic jam assist: unavailable."
• "Audi active lane assist: currently unavailable."

Fault Codes / DTCs

When the Audi driver assist unavailable condition occurs, diagnostic trouble codes (DTCs) related to an internal malfunction in the camera control module (R242, address word 00A5) may be stored. These DTCs can be present either statically or sporadically.

Code	Description	Module
B200FF1	Internal malfunction	Camera control module R242
B200FF2	Internal malfunction	Camera control module R242

Diagnosis / Trigger Conditions

The root cause of these driver assist system malfunctions is an internal communication issue within the R242 camera control module. This malfunction typically occurs during the module's start-up phase. The Technical Service Bulletin 90 24 19 2048926/10 identifies this as the underlying technical background.

Repair Procedure Summary

The repair procedure outlined in TSB 90 24 19 2048926/10 depends on which DTCs are present:

1. If only DTC B200FF1 is logged: The camera control module R242 should be replaced.
2. If both DTCs B200FF1 and B200FF2 are logged: The camera control module R242 should be replaced.
3. If only DTC B200FF2 is logged and the R242 software is older than version 0055: The camera control module R242 should be updated using SVM code A5A002. This software update requires following all instructions in TSB 2011732, titled "00 Software Version Management (SVM), operating instructions."

For software updates, the TSB provides a table detailing old and new software part numbers and versions for various models, including A4, A5, Q7, and Q5. For example, for A4/A5 models with old software version greater than 0055, the new software version is 0055, using part number 8W0907217C.

Required Tools or Parts

To perform the necessary repairs, technicians will require access to the appropriate diagnostic equipment for reading DTCs and performing software updates. For software updates, adherence to the procedures outlined in TSB 2011732, "00 Software Version Management (SVM), operating instructions," is mandatory. The SVM code A5A002 is specifically used for updating the R242 camera control module in certain conditions.

Important Warnings

Audi states that if your vehicle is outside of its warranty period, this Technical Service Bulletin is for informational purposes only. Warranty claims related to this issue must be submitted in accordance with the Audi Warranty Policies and Procedures Manual.

Owner Action

If your 2021 Audi is experiencing the Audi driver assist unavailable condition or displaying any of the associated warning messages, it is recommended to contact an authorized Audi dealer. They can diagnose the issue by checking for DTCs B200FF1 and B200FF2 in the R242 camera control module and perform the appropriate repair, whether it's a module replacement or a software update. The service number for this claim is 9638, with damage code 0040. Labor operations may include 9638 55xx for camera replacement, or 0150 0000/0151 0000 for software-related diagnostics and updates.

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Source: NHTSA ID 11007332