2022-2024 Audi Power Rear Lid Not Opening/Closing TSB

Symptoms

Owners of affected Audi vehicles may experience the power rear lid failing to operate correctly. Specifically, the power rear lid may not open or close, or it may be unable to be opened or closed electrically using the vehicle's controls.

Fault Codes / DTCs

When diagnosing this issue, technicians may find one of the following Diagnostic Trouble Codes (DTCs) stored in the Rear Lid Electronics control module (J605), identified by address word 006D:

• DTC B121102: Hall sensors in rear lid motor 1 Signal malfunction
• DTC B120A02: Hall sensors in rear lid motor 2 Signal malfunction

These codes indicate a signal malfunction originating from the Hall sensors within the rear lid motors, which are crucial for tracking the lid's position.

Technical Background

The root cause of the power rear lid malfunction and the associated DTCs is an incorrect identifier within the Target Data Container (ZDC). This data container is essential for the proper functioning of the Rear Lid Electronics control module, J605.

Repair Procedure Summary

To correct the power rear lid issue and clear DTCs B121102 or B120A02, a software update is required for the Rear Lid Electronics control module, J605. This procedure is outlined in Technical Service Bulletin 55 24 87 2072288/2 and involves the following steps:

1. DoIP Communication: Ensure Diagnostic over Internet Protocol (DoIP) is active when flashing the control module via ODIS. This can be activated through the Administration settings in ODIS. A red LED on the VAS 6154(A) diagnostic tool indicates DoIP is active.
2. SVM Update: Update the Rear Lid Electronics control module, J605 (address word 006D), using the appropriate SVM action code. For A6 allroad and RS 6 Avant models, the SVM action code is 6DA008. This update installs a new Target Data Container (ZDC) to address the incorrect identifier.
3. Basic Setting: After the SVM update is completed, perform the basic setting for the power rear lid.
4. Operational Check: Verify the proper operation of the power rear lid to ensure the fix is successful. This should resolve the Audi Q7 power rear lid issue.

This TSB supersedes an earlier bulletin, Group 55 number 23-85, dated December 5, 2023, to add the 2024 Q7 model year.

Required Tools

Technicians will need specific tools to perform the software update:

• VAS 6160/VAS 6150: A VAS tester equipped with the current version of ODIS (Windows 10) is necessary to carry out the SVM update and diagnostic procedures.

Warranty Information

This repair is covered under warranty for vehicles up to 48 months or 50,000 miles, whichever comes first. For Audi Certified Pre-Owned (CPO) vehicles, owners must be verified (G10 claim type). If the vehicle is outside of its warranty period, this Technical Service Bulletin serves as informational guidance only. The service number for this procedure is 5568, with a damage code of 0039. The labor operation for the software update, including DTC checks, is 0151 0000.

Important Warnings

This update differs from a recall. Audi is not notifying consumers directly about this service bulletin. Owners experiencing symptoms related to the Audi Q7 power rear lid should proactively contact their authorized Audi dealer to inquire about this technical service bulletin.

Additional Information

This procedure also references TSB 2011732, which provides instructions for 00 Software Version Management (SVM) operations. Always consult the latest information from Audi's parts and service departments for current data and part numbers.

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Source: NHTSA ID: 10249217