2021-2026 Audi Driver Assist Systems Not Working TSB

Owners of 2021-2026 Audi vehicles may experience issues with their driver assist systems, specifically the parking aid, maneuver assist, and rear cross-traffic assist. These malfunctions can occur sporadically, often after passing through a toll booth or during heavy traffic. This Technical Service Bulletin, 90 24 57 2074688/3, outlines the diagnostic trouble codes (DTCs) and the necessary software updates to resolve the problem when your Audi driver assist systems not working.

Symptoms

Customers may notice one or more of the following messages displayed in the instrument cluster, indicating that the Audi driver assist systems not working:

• “Parking aid: fault. Obstacles cannot be detected.”
• “Maneuver assist: fault. Please contact workshop.”
• “Rear cross-traffic assist: currently unavailable. See owner's manual.”

These messages signify a functional issue with the respective driver assistance features.

Fault Codes / DTCs

When these issues occur, the following diagnostic trouble codes (DTCs) may be stored in various control units. These DTCs often have almost identical time stamps, differing by up to 5 seconds.

Diagnosis / Trigger Conditions

The complaint is typically sporadic and difficult to reproduce consistently. Technicians will find the listed DTCs (U111000, U112300) stored in the respective control units, indicating a software-related communication interruption or data bus error. The underlying cause for your Audi driver assist systems not working is identified as a software issue.

Important Warnings

Before any service measure is performed, it is crucial to check the software version of the driver assist systems control unit -J1121- and the vehicle's model year. This ensures the correct update procedure is followed. During the software update process, if the message "Should the entered SVM code be accepted or the vehicle connection be changed?" appears, technicians must double-check that the vehicle access is set to DoIP. If not, it must be changed by selecting “3. Change vehicle access (CAN, DoIP, CANFD).”

Repair Procedure Summary

The repair involves updating the software for the driver assist systems control unit -J1121- (diagnostic address 00A5) using the ODIS tester. The specific procedure varies based on the vehicle's model year and current software version:

• For MY 2019/2020 vehicles with software version 0365: An update to the target data container for the J1121 control unit is available. Technicians must perform the "Check Control Module Configuration" test plan for J1121 using the ODIS tester.

• For MY 2021/2022/2023 vehicles with software versions 0364, 0365, 0366, 0371, 0381, or 0383: A software update, including an update of the target data container for J1121, is available. The communication method must first be changed to "DoIP" by navigating through Admin --> General --> GFS Process and selecting “Only allow DoIP communication.” Then, a software update is performed by selecting "flash" and entering the SVM code FASISKD6A002. This update can take approximately 15 to 100 minutes, depending on vehicle equipment.

• For MY 2021/2022/2023 vehicles with software version 0384: An update of the target data container for J1121 is available. Technicians should perform the "Check Control Module Configuration" test plan for J1121 with the ODIS tester.

• For MY 2024 vehicles with software version 0394: The J1121 control unit needs to be updated via SVM. This is done in "Flash" mode on the ODIS tester using SVM code A5A019.

• For MY 2024/2025 vehicles with software version 0502: An update of the target data container for J1121 is available. Technicians must perform a check control module configuration test plan for J1121 with the ODIS tester.

This TSB, 90 24 57 2074688/3, supersedes Technical Service Bulletin Group 90 number 24-38 dated October 28, 2024.

Required Tools or Parts

To perform the necessary software updates, an ODIS tester is required. Specific SVM codes, such as FASISKD6A002 and A5A019, are used during the flashing process, depending on the vehicle's model year and current software.

Warranty Information

Warranty claims for this service are processed under Claim Type 9093 and Damage Code 0039. If the vehicle is outside of its warranty period, this Technical Service Bulletin is for informational purposes only. All warranty claims must adhere to the Audi Warranty Policies and Procedures Manual.

NHTSA ID: 11012513