2021-2022 Audi Driver Assist Software Update TSB

Audi Technical Service Bulletin (TSB) 90 24 89 2069244/3, issued on May 21, 2024, outlines a software update for the driver assist systems in various 2021-2022 Audi models. This bulletin supersedes TSB Group 90 number 23-29 dated June 12, 2023, with revisions to the condition, service procedure, and warranty information. The primary goal of this update is to address vehicles with an older software version in the driver assist systems control unit -J1121- (address word 00A5).

Symptoms

This TSB addresses vehicles where the driver assist systems control unit -J1121- (diagnostic address 00A5) has a software version below SW 0381. While the bulletin does not specify direct owner-perceivable symptoms that necessitate this update, it is a preventative measure to ensure optimal performance of the driver assist systems. If your vehicle has an older software version, it qualifies for this Audi driver assist software update.

Fault Codes / DTCs

In some rare cases, after the software update, specific Diagnostic Trouble Codes (DTCs) may be stored in the driver assist systems control unit -J1121- (diagnostic address 00A5). These include:

• B200FF3: Internal malfunction (symptom 221193)
• B170AF1: Calibration step 2 not carried out (symptom 2117696)

If either of these DTCs are stored after the update, technicians are instructed to perform the ODIS test plan specifically calculated for DTC B170AF1 to resolve the issue.

Important Warnings for Owners

Owners and technicians should be aware of several critical points outlined in this bulletin:

• High-Voltage Vehicle Precautions: For vehicles equipped with high-voltage components, such as e-tron models, the high-voltage charging cable MUST be unplugged BEFORE the SVM code is entered. This is crucial to prevent the high-voltage battery from charging during the software update, as charging during this process can cause damage to the high-voltage components.
• Existing Fault Messages: If active fault messages related to driver assist systems are already displayed in the instrument cluster, this software update (TSB 90 24 89 2069244/3) may not resolve those existing problems. Attempting to start the flashing procedure despite active fault messages could lead to the flash routine being aborted, and it might even necessitate replacing control units. Owners should attempt to resolve any existing cluster messages by clearing vehicle DTCs and cycling the ignition before proceeding with the update.
• DoIP Communication: When flashing a control module via ODIS in supported vehicles, DoIP (Diagnostics over Internet Protocol) must always be used. Technicians must ensure DoIP is selected on the screen displaying the message `