2021-2024 Audi Power Rear Lid Malfunction

Symptoms

Owners of certain 2021-2024 Audi models may experience issues with their power rear lid. The primary symptom of this issue is that the power rear lid does not open or close properly. Specifically, customers have reported:

• "The power rear lid does not open or close."
• "The power rear lid cannot be opened or closed electrically."

These symptoms indicate a problem with the electronic operation of the rear lid, preventing normal functionality.

Fault Codes / DTCs

When diagnosing an "Audi power rear lid malfunction," technicians may find one or both of the following Diagnostic Trouble Codes (DTCs) stored in the Rear Lid Electronics control module (-J605-, address word 006D):

Code	Description	Module
B121102	Hall sensors in rear lid motor 1 Signal malfunction	Rear Lid Electronics (J605)
B120A02	Hall sensors in rear lid motor 2 Signal malfunction	Rear Lid Electronics (J605)

These DTCs point to issues with the Hall sensors responsible for monitoring the position and operation of the rear lid motors.

Diagnosis / Trigger Conditions

The root cause of the "Audi power rear lid malfunction" is an incorrect identifier within the Target Data Container (ZDC). This incorrect data prevents the Rear Lid Electronics control module (-J605-) from properly controlling the power rear lid, leading to the reported symptoms and the storage of DTCs B121102 or B120A02.

Repair Procedure Summary

The solution for the power rear lid malfunction, as detailed in Technical Service Bulletin (TSB) 2072288/3, involves updating the software in the Rear Lid Electronics control module, J605. This procedure requires a new Target Data Container (ZDC) update.

1. DoIP Communication: Technicians must utilize Diagnostic over Internet Protocol (DoIP) when flashing control modules via ODIS (Offboard Diagnostic Information System) in compatible vehicles. Specific DoIP communication settings need to be enabled in the diagnostic system.
2. SVM Update: The Rear Lid Electronics control module, J605 (address word 006D), must be updated using the appropriate SVM (Software Version Management) action code provided in the bulletin. This process replaces existing Target Data Container Numbers and Versions with newer ones. For example, the SVM code for A6 allroad and RS 6 Avant models is 6DA008.
3. Basic Setting: Following a successful SVM update, a basic setting procedure for the power rear lid must be performed.
4. Operational Check: Finally, the technician will verify the proper operation of the power rear lid to ensure the issue is fully resolved.

Required Tools or Parts

To carry out this software update and address the Audi power rear lid malfunction, technicians will need:

• A VAS tester (specifically VAS 6160/VAS 6150) equipped with the current version of ODIS (running on Windows 10).
• Access to the correct Target Data Container (ZDC) update files.

Warranty Information

This repair is generally covered under Audi's New Vehicle Limited Warranty for up to 48 months or 50,000 miles, whichever occurs first. For Audi Certified Pre-Owned (CPO) vehicles, coverage may apply under claim type G10, subject to owner verification. If your vehicle falls outside of its warranty period, this Technical Service Bulletin serves as informational guidance, and any associated costs for diagnosis and repair may be the owner's responsibility. The labor operation for this software update, which includes checking for DTCs, is identified as 0151 0000, with a maximum allowance of 80 Time Units (TU).

Important Warnings

This TSB, identified as 2072288/3, clarifies that if your vehicle is no longer under warranty, the information provided is for reference only. There are no specific