2021-2023 Audi Active Lane Assist Malfunction TSB

Owners of certain 2021-2023 Audi vehicles may encounter an "Audi Active Lane Assist malfunction" message or a similar warning in their instrument cluster. This issue is addressed by Audi Technical Service Bulletin 2061932/1, which identifies the potential cause as a malfunction of the capacitive steering wheel, often linked to Diagnostic Trouble Code (DTC) U112300.

Symptoms

Owners will observe one of the following malfunction indications displayed in the instrument cluster:

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

Fault Codes / DTCs

When diagnosing this issue, technicians may find DTC U112300 stored in one of the vehicle's control modules. This code indicates a "Databus error value received" and is associated with specific symptom codes depending on the module:

DTC Code	Description	Module	Symptom Code
U112300	Databus error value received	Front camera, R242 (address word 00A5)	1123220
U112300	Databus error value received	Distance regulation control module, J428 (address word 0013)	2153

Diagnosis and Technical Background

Audi vehicles equipped with driver assist features utilize a capacitive steering wheel. This wheel contains touch sensors designed to detect if the driver's hands are on the wheel, ensuring driver attention during assisted driving. The presence of DTC U112300 suggests a communication error related to this system, pointing to a possible malfunction within the capacitive steering wheel itself.

Repair Procedure Summary

The TSB outlines a diagnostic and repair process for the Audi Active Lane Assist malfunction:

1. Inspect Steering Wheel: Technicians should first visually inspect the steering wheel for any exterior mechanical damage, such as deep scratches.
2. Assess Damage: If mechanical damage is found, it is considered to be due to external influence and may not be covered under warranty.
3. Airbag Removal: The airbag must be carefully removed from the steering wheel.
4. Wiring and Connector Check: All visible wiring on the steering wheel and its connectors must be thoroughly inspected to ensure they are in good condition and properly secured.
5. Steering Wheel Replacement: If, after completing steps 1 through 3, no obvious damage or issues are found, the steering wheel should be replaced.

Required Tools or Parts

Specific parts and tools may be required for this repair:

• Fasteners, Bolts, Nuts, and Screws: As needed per the Repair Manual (refer to ETKA).
• Steering Wheel: If replacement is deemed necessary (refer to ETKA for part number, quantity 01).

Warranty Information

This TSB provides specific guidelines for warranty claims related to the Audi Active Lane Assist malfunction:

• Claim Type: 110, applicable for vehicles up to 48 months or 50,000 miles.
• CPO Vehicles: For Audi Certified Pre-Owned (CPO) vehicles, use claim type G10 and verify owner eligibility.
• Out-of-Warranty: If the vehicle is outside its warranty period, this Technical Service Bulletin serves as informational guidance only.

Labor Operations and Diagnostic Times:

Labor Operation	Description	Time Units (TU)
6958 1900	Driver airbag unit remove + reinstall	See SRT
4810 1999	Inspecting steering wheel for damage	5 TU
4810 1900	Steering wheel remove + reinstall (if required)	See SRT
0150 0000	Diagnostic Time (GFF)	Max 15 TU
No allowance	Road test prior to service procedure	0 TU
No allowance	Road test after service procedure	0 TU

Service Number: 4810 Damage Code: 0040 Claim Comment: As per TSB #2061932/1

All warranty claims must adhere to the Audi Warranty Policies and Procedures Manual and are subject to review or audit by Audi Warranty.

Important Warnings

• If mechanical damage is found on the steering wheel, it is considered external influence and may not be covered under warranty.
• If your vehicle is outside of its warranty period, this Technical Service Bulletin is for informational purposes only, and repair costs may apply.