2019-2023 Audi Active Lane Assist Malfunction TSB

Symptoms of Audi Active Lane Assist Malfunction

Owners of 2019-2023 Audi vehicles may observe specific warning messages displayed in the instrument cluster related to the Audi e-tron Active Lane Assist malfunction. These messages indicate a problem with the vehicle's driver assistance systems.

The verbatim messages you might see include:

• "Audi Active Lane Assist: malfunction!"
• "Traffic Jam Assist: malfunction!"

These warnings suggest that the active lane assist and traffic jam assist features may not be functioning correctly.

Fault Codes and Affected Modules

When an Audi e-tron Active Lane Assist malfunction occurs, diagnostic trouble code (DTC) U112300 is typically stored in one of two control modules. This DTC, described as "Databus error value received," points to a communication issue or fault within the system.

The DTC U112300 can be found in:

• Front camera, R242 (address word 00A5): Stored with symptom code 1123220.
• Distance regulation control module, J428 (address word 0013): Stored with symptom code 2153.

These modules are critical for the operation of the active lane assist and traffic jam assist systems.

Technical Background

The affected 2019-2023 Audi vehicles are equipped with a capacitive steering wheel. This advanced steering wheel features capacitive touch sensors designed to detect if the driver's hands are on the wheel. This technology ensures driver engagement and attention when utilizing driver assistance features like Active Lane Assist and Traffic Jam Assist. A malfunction in this system can lead to the reported warnings and DTCs.

Repair Procedure Summary

Addressing the Audi e-tron Active Lane Assist malfunction primarily involves inspecting and potentially replacing the capacitive steering wheel. The repair process, as outlined in TSB 2061932/2, includes several key steps:

1. Initial Inspection: Technicians will first inspect the steering wheel for any exterior or mechanical damage, such as deep scratches. If such damage is found, it is considered external influence and may not be covered under warranty.
2. Airbag Removal: The airbag unit must be carefully removed from the steering wheel to access internal components and wiring.
3. Wiring Check: All visible wiring on the steering wheel will be checked for good condition, and all connectors will be secured.
4. Steering Wheel Replacement: If no obvious damage is found during the inspection steps, the steering wheel is to be replaced. This indicates an internal fault with the capacitive sensors or related components.

Required Tools or Parts

For this repair, technicians will need to consult the Electronic Parts Catalog (ETKA) for specific fasteners, bolts, nuts, and screws as required by the repair manual. If a steering wheel replacement is necessary, the new steering wheel part number should also be sourced via ETKA. Always verify the latest information and parts bulletins with the Parts Department.

Warranty Information

This Technical Service Bulletin (TSB) provides specific guidelines for warranty claims related to the Active Lane Assist malfunction. The TSB, identified as 96 21 65 2061932/2, supersedes the earlier TSB 96 21-61 dated January 19, 2021.

• Standard Warranty: Claims are generally covered under the new vehicle limited warranty, up to 48 months or 50,000 miles.
• Certified Pre-Owned (CPO) Warranty: For CPO vehicles, claims fall under claim type G10, requiring verification of owner eligibility.
• Out-of-Warranty: If the vehicle is outside of any applicable warranty, this TSB serves as informational guidance only, and repair costs may be borne by the owner.

All warranty claims must adhere to the Audi Warranty Policies and Procedures Manual and are subject to review or audit by Audi Warranty. The service number for this repair is 4810, and the damage code is 0040.

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NHTSA ID: 10189326