2020-2021 Audi e-tron Driver Assist Malfunctions TSB 2063502/8

Audi has released Technical Service Bulletin (TSB) 90 24 93 2063502/8 to address various driver assist system malfunctions affecting certain 2020-2021 Audi e-tron and e-tron Sportback vehicles. This TSB, revised on May 22, 2024, supersedes previous bulletin Group 90 number 23-34 dated August 2, 2023, and outlines a software update designed to resolve these issues, which can include the Audi e-tron driver assist malfunction.

Bulletin History

This Technical Service Bulletin has undergone several revisions to refine its scope and instructions:

• Revision 9 (May 22, 2024): Updated the header (software filter), Condition section (removed note about B200FF9), Service section (new update TSB layout), and Warranty section (updated labor operations).
• Revision 8 (August 2, 2023): Revised the header to remove certain models and VIN filters.
• Revision 7 (January 26, 2023): Corrected the Service Number Group in the title.

Symptoms of Driver Assist Malfunctions

Owners of affected 2020-2021 Audi e-tron and e-tron Sportback vehicles may experience several issues related to their driver assist systems. These include sporadic non-functionality of the lane change assist and intersection assist features. When these systems malfunction, specific messages may appear in the instrument cluster:

• "Intersection assist: fault. Please contact service."
• "Side assist and exit warning system: fault. Please contact service."
• "Rear cross-traffic assist: fault. Please contact service."
• "Audi pre sense: fault. Please contact service."

Additionally, the traffic sign recognition system may not permanently store speed limit settings, losing them with every ignition cycle. Vehicles equipped with steel suspension might also experience the Adaptive Cruise Assist (ACA) disengaging or losing calibration when towing a trailer or bike rack. These symptoms point to a potential Audi e-tron driver assist malfunction.

Diagnostic Trouble Codes (DTCs)

Technicians investigating these driver assist system concerns may find Diagnostic Trouble Code (DTC) B200FF9 stored in the vehicle's control modules. This DTC indicates an internal malfunction and can be accompanied by specific symptom codes:

Code	Description	Module	Symptom Codes
B200FF9	Internal malfunction	Front corner radar control modules (J1088/J1089)	1311089
B200FF9	Internal malfunction	Lane change assist control modules (J769/J770)	1311057, 1311058, 1311059, 1311060

It's important to note that some customer concerns, such as the traffic sign recognition issue, may not always generate a DTC.

Technical Background

This software update optimizes multiple driver assist features by addressing various control modules. The update will affect the following control modules:

• Driver assist systems control module, J1121 (address word 00A5)
• Adaptive cruise control module, J428 (address word 0013)
• Lane change assist control module, J769/J770 (address words 003C/00CF)
• Front left/front right radar sensor control module for object detection, J1088/J1089 (address words 00DB/00DC)
• Control module for laser distance control, J1122 (address word 00CD)
• Airbag control module, J234 (address word 0015)

Important Warnings and Advisories

Audi has issued critical warnings regarding the software update procedure outlined in TSB 90 24 93 2063502/8:

• All outstanding campaigns must have been completed prior to running this update. Familiarize yourself with all steps before proceeding.
• If any warning messages are displayed in the instrument cluster, those have to be addressed prior to updating the vehicle as running the update with active instrument cluster warning messages may brick the driver assist control module, J1121 (address word 00A5).
• Federal law requires the airbag's Event Data Recorder (EDR) to be backed up prior to running the update in this TSB. Customers must sign a declaration of consent, which needs to be uploaded to DOC-IT.
• This update includes multiple control modules, and certain customer personalization settings may be reset to factory settings.
• The dealership/workshop, Audi of America, and/or Audi AG are not liable for third-party modifications, like undocumented retrofits, non-genuine accessories, or any other modification not approved by Audi of America that might be rendered inoperable by this update.
• Always start the update out of ODIS. Do not perform the update via the red engineering menu (method 2) unless you have been given prior approval from TAC.

Repair Procedure Summary

For MY 2021 vehicles, the repair should be performed as per TSB 2069244. For MY 2020 e-tron quattro vehicles, the procedure involves using an ODIS Tester and specific SVM codes. The total time to complete the update is approximately 60-120 minutes, including 50-110 minutes for the software update itself and 10 minutes for SVM work.

1. Determine System Designation: Use ODIS to determine the driver assist systems control module (zFAS), J1121 (address word 00A5) system designation. This step identifies critical information such as hardware part number (e.g., 4N0907107F, 4KE907107AP), software version number (e.g., 0295), and system name (e.g., ZFAS Var A).
2. Select SD Cards: Based on the zFAS system designation:
   • For zFAS Var A, no SD Card is required.
   • For MY20 Audi e-tron quattro and Audi e-tron Sportback with zFAS Var B/C, SD Card Part Number 4N0906961AR is required.
3. Update Peripheral Control Modules: Update these modules using SVM code FASISKD5A001. This process typically takes between 20 and 30 minutes.
4. Update zFAS Application Software: Update the zFAS application software using SVM Code FASISKD5A002. This step also takes about 30 minutes.
5. Perform Bus Sleep Cycle: After the updates, the vehicle must perform a bus sleep cycle. This involves exiting the flash context in ODIS, switching the vehicle ignition off, removing the battery charger and diagnostic interface dongle, closing the hood, trunk, and all doors, locking the vehicle, and waiting approximately six minutes without handling the vehicle.

Required Tools or Parts

• ODIS Tester
• SD Card Part Number 4N0906961AR (zFAS B/C) for MY20 Audi e-tron quattro and e-tron Sportback quattro models.

Warranty Information

This repair is covered under warranty for up to 48 months or 50,000 miles. For CPO (Certified Pre-Owned) vehicles, it falls under Claim Type G10, requiring owner verification. If the vehicle is outside of warranty, this Technical Service Bulletin serves as informational guidance only.

• Service Numbers:
  • Claims regarding DTC B200FF9: 9635
  • Claims regarding Traffic Sign Recognition: 9093
  • Claims regarding ACC misadjustment when towing: 9163
• Damage Code: 0039
• Labor Operations: Software Update (Includes checking for DTCs) is coded as 0151 0000, with time stated on the diagnostic protocol (Max 200 TU). Additional operations include checking/adjusting driver assist systems (9093 0599, 10 TU), charging the battery (2706 8950), and road tests (0121 0004, 10 TU).

Additional Resources

To complete this procedure, technicians may need to refer to several other Technical Service Bulletins:

• TSB 2011732: 00 Software Version Management (SVM), operating instructions.
• TSB 2056558: 91 MIB2+ Software Update Instructions.
• TSB 2047812: 00 SD Creator: how to set up and use the SD Creator for obtaining vehicle software updates via the MirrorServer.
• TSB 2062601: 90 DTC U110100 is stored in the driver assistance systems control module.

All part and service references in TSB 2063502 are subject to change. Always check with your Parts Department and/or ETKA for the latest information.

NHTSA ID: 10255375