2020-2021 Audi e-tron Intersection Assist Malfunction TSB

Owners of certain 2020-2021 Audi e-tron and other Audi models may experience sporadic malfunctions with their vehicle's intersection assist and lane changing assist systems. This issue is often accompanied by specific warning messages in the instrument cluster and the storage of a diagnostic trouble code (DTC).

Symptoms

If your vehicle is affected, you might notice that the intersection assist or lane changing assist features are not working reliably. These systems are designed to enhance safety by providing warnings or interventions during complex driving situations like turning at intersections or changing lanes. The instrument cluster may display one or more of the following verbatim warning messages:

• "Intersection assist Malfunction! Please contact service."
• "Lane change and exit warning: Malfunction! Please contact service."
• "Rear intersection assistant: Malfunction! Please contact service."
• "Audi pre sense: Malfunction! Please contact service."

Fault Codes / DTCs

When the Audi e-tron intersection assist malfunction occurs, technicians may find the diagnostic trouble code B200FF9 stored in the vehicle's control modules. This DTC, labeled as "Internal malfunction," can be accompanied by various symptom codes, indicating where the erroneous detection is occurring.

Specifically, DTC B200FF9 may be found in:

• Lane change assistance control modules: J769 and J770 (address words 003C and/or 00CF), with symptom codes 1311057, 1311058, 1311059, or 1311060.
• Front corner radar control modules: J1088 and J1089 (address words 00DB and/or 00DC), with symptom code 1311089.

These modules are crucial components of the ZFAS system, which manages many of the vehicle's advanced driver-assistance functions.

Technical Background

Audi has identified that the root cause of this Audi e-tron intersection assist malfunction is overly sensitive diagnostic routines within the vehicle's software. These routines are erroneously detecting faults, leading to the storage of DTC B200FF9 and the display of warning messages, even when no hardware defect is present.

What Owners Should Know

Do not replace any components for this condition since this will not resolve the customer's concern.

Audi explicitly advises against replacing any components, such as the control modules, to address this issue. Doing so will not fix the problem, as it is software-related rather than a hardware failure. A software-based solution was anticipated for the fourth quarter of 2021, meaning a fix should now be available.

Production Solution

Audi has planned for improved software to resolve this issue. This updated software is intended for both new production vehicles and for service application in existing vehicles, aiming to correct the overly sensitive diagnostic routines.

Owner Action

If your 2020-2021 Audi e-tron or other affected Audi model is experiencing this Audi e-tron intersection assist malfunction, you should contact an authorized Audi dealership. While component replacement is not recommended, dealers are instructed to create a PSS (Pending Service Solutions) record. This record helps Audi track the issue and ensures that your vehicle is noted for the forthcoming software update. Inquire about the availability of the software solution that was expected in Q4 2021.

Revision History

This Technical Service Bulletin (TSB) has undergone revisions:

• Revision 2 (May 4, 2021): Revised header to update applicable vehicles and revised service instructions, including an updated expected release date for the solution.
• Revision 1 (October 30, 2020): Initial publication of the bulletin.

This bulletin supersedes Technical Service Bulletin Group 96 number 20-59 dated October 29, 2020.