2021-2022 Audi Driver Assist Software Update TSB 2069244/3

Why This Matters

Driver assist systems play a crucial role in modern vehicle safety and convenience. When these systems operate with outdated software, it can lead to unexpected behavior or malfunctions, potentially compromising their effectiveness. This Technical Service Bulletin, TSB 2069244/3, provides a critical software update to ensure the optimal performance of these systems in affected Audi vehicles.

Symptoms

The primary symptom addressed by this bulletin is the presence of a software version below SW 0381 in the driver assist systems control unit -J1121- (address word 00A5). Owners might notice active fault messages related to driver assist systems displayed in the instrument cluster. While the TSB aims to prevent issues, these messages indicate a potential underlying problem that the software update can resolve.

Fault Codes / DTCs

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

If DTC B170AF1 is stored, technicians are instructed to perform the relevant ODIS test plan to resolve the calibration issue.

Important Warnings for Owners

Audi has issued several important warnings related to this software update:

• High-Voltage Battery Safety: For vehicles with high-voltage components, the high-voltage charging cable must be unplugged before the SVM code is entered to prevent the battery from charging during the update. Charging the high-voltage battery during a software update can cause damage to high-voltage components.
• Active Fault Messages: If your vehicle is currently displaying active fault messages about driver assist systems in the instrument cluster, this TSB may not fully resolve the problem. Attempting the flashing procedure with active fault messages could cause the flash routine to abort, potentially requiring control unit replacement. It is recommended to clear vehicle DTCs and cycle the ignition before starting the update.
• DoIP Communication: When flashing a control module via ODIS, it is crucial to use DoIP (Diagnostic over Internet Protocol). On the screen displaying the message "Should the entered SVM code be accepted, or the vehicle connection be changed", ensure DoIP is selected. Failing to select DoIP by choosing "-3- Change vehicle access (CAN, DoIP, CANFD)" may lead to significantly longer flash times that might not be covered by warranty.
• Settings Reset: Please be aware that some driver assist settings may revert to their default values after the software update is performed.

Repair Procedure Summary

The repair involves updating the software for the driver assist systems control unit -J1121-. This process requires following specific instructions outlined in TSB 2011732: 00 Software Version Management (SVM), operating instructions. The update duration can vary between 15 and 100 minutes, depending on the vehicle's equipment and its current software level. The update is performed using the SVM action code FASISKD6A001.

After the software update, a