2022-2026 Audi Driver Assist System Fault U111000

Audi has issued Technical Service Bulletin (TSB) 2074688/3 to address concerns with driver assist systems in various 2022-2026 Audi models. Owners may experience malfunctions with the parking aid, maneuver assist, and rear cross-traffic assist features, often indicated by specific warning messages and diagnostic trouble codes (DTCs).

This TSB supersedes an earlier bulletin, Group 90 number 24-38, dated October 28, 2024, reflecting updated service measures and software version listings. The root cause of the problem is identified as a software issue within the driver assist systems.

Symptoms

Owners of affected Audi vehicles may observe one or more of the following functional issues, particularly after driving through a toll booth or in heavy traffic:

• The parking aid system is not working, displaying the message: "Parking aid: fault. Obstacles cannot be detected."
• The maneuver assist system is not working, displaying the message: "Maneuver assist: fault. Please contact workshop."
• The rear cross-traffic assist system is not working, displaying the message: "Rear cross-traffic assist: currently unavailable. See owner's manual."

These symptoms often occur sporadically and may be difficult to reproduce consistently.

Fault Codes / DTCs

When these issues arise, technicians may find several diagnostic trouble codes (DTCs) stored in various control units, often with almost identical time stamps (within 5 seconds of each other). The primary concern is the Audi driver assist fault U111000.

Code	Description	Control Unit
U111000	Function restriction due to communication interruption (symptom 6922)	Information Electronics -J794- (address 005F)
U111000	Function restriction due to communication interruption (symptom 7178)	Information Electronics -J794- (address 005F)
U112300	Data bus error value received (symptom 2114053)	Driver assist systems control unit -J1121- (address 00A5)
U112300	Data bus error value received (symptom 1191978)	Lane change assist control unit -J769- (address 003C)
U112300	Data bus error value received (symptom 452352)	Lane change assist control unit -J769- (address 003C)

Repair Procedure Summary

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

For MY 2019/2020 vehicles with software version 0365, the target data container for the -J1121- control unit needs an update. This is performed using the "Check Control Module Configuration" test plan within the ODIS tester.

For MY 2021/2022/2023 vehicles with software versions 0364, 0365, 0366, 0371, 0381, or 0383, a comprehensive software update, including the target data container, is required. This process involves changing the communication method to DoIP (Diagnostic over Internet Protocol) via the ODIS tester's Admin menu (Admin > General > GFS Process > "Only allow DoIP communication"). After selecting "flash" and "SVM code input," the software update is performed using SVM code FASISKD6A002. This update can take approximately 15 to 100 minutes, depending on the vehicle's equipment.

For MY 2021/2022/2023 vehicles with software version 0384, an update of the target data container for the -J1121- control unit is performed using the "Check Control Module Configuration" test plan with the ODIS tester.

For MY 2024 vehicles with software version 0394, the -J1121- control unit is updated via SVM using "Flash" mode on the ODIS tester, with SVM code A5A019.

Finally, for MY 2024/2025 vehicles with software version 0502, an update of the target data container for the -J1121- control unit is performed using the "Check Control Module Configuration" test plan with the ODIS tester.

Important Warnings

• BEFORE performing any service measure, technicians MUST check the software version of the driver assist systems control unit -J1121- (diagnostic address 00A5) and the vehicle's model year. This ensures the correct update procedure is followed.
• During the software update for MY 2021/2022/2023 vehicles, if the message "Should the entered SVM code be accepted or the vehicle connection be changed?" appears, technicians must double-check that vehicle access is set to DoIP. If not, it must be changed by selecting "3. Change vehicle access (CAN, DoIP, CANFD)". Failure to do so could lead to an incomplete or incorrect update.

Required Tools or Parts

Technicians will need access to an ODIS tester to perform the diagnostic and software update procedures. Specific SVM codes, such as FASISKD6A002 and A5A019, are also required depending on the model year and software version.

Warranty Information

This repair is generally covered under warranty. The service number for this claim is 9093, with a damage code of 0039. However, if the vehicle is outside of its warranty period, this Technical Service Bulletin is for informational purposes only, meaning the owner may be responsible for repair costs. All warranty claims must adhere to the Audi Warranty Policies and Procedures Manual.

NHTSA ID: 11012513