2021-2022 Audi Steering Malfunction TSB B200FF0 C12A329

Overview of TSB 2066318/2

This Technical Service Bulletin, identified as 48 22 24 2066318/2, was issued on March 29, 2022. It supersedes a previous bulletin, Group 48 number 22-21, dated March 7, 2022. The bulletin provides updated service instructions, specifically for software version management (SVM), to address a common issue in various Audi models.

Symptoms

Owners of affected 2021-2022 Audi vehicles may observe a "Steering malfunction warning in the instrument cluster." This warning indicates a potential issue with the rear wheel steering system.

Fault Codes / DTCs

When diagnosing the "Steering malfunction warning in the instrument cluster" or the Audi steering malfunction B200FF0, technicians may find one of the following Diagnostic Trouble Codes (DTCs) stored in the rear axle wheel steering control module, identified as J1019 (address word 00CB):

Code	Symptom Code	Description
B200FF0	251 and/or 129	Rear wheel steering malfunction
C12A329	224	Rear wheel steering malfunction

Technical Background

Audi has identified that the "Audi steering malfunction B200FF0" or C12A329 codes, leading to the steering malfunction warning, are often caused by outdated software in the rear axle wheel steering control module (J1019). An improved software version has been developed to resolve this condition.

Repair Procedure Summary

To correct the rear wheel steering malfunction, Audi Technical Service Bulletin 2066318/2 outlines a software update procedure. The process begins by following all instructions detailed in TSB 2011732, which covers the general operating procedures for Software Version Management (SVM).

For vehicles specifically logging DTC B200FF0 with symptom code 251, a basic setting must be performed in the self-diagnosis of the J1019 control unit. This step requires using service login 20103. If other symptom codes are present, this basic setting step can be skipped.

Subsequently, the J1019 control module (00CB) needs to be updated using the SVM action code CBA002. This update will install new software version 0399 (or higher) while the hardware part number remains 4N0909145C. The previous software version was 0398.

After the software update is successfully completed, a wheel alignment is required. Technicians are specifically advised to adjust the rear axle to the tolerance limits for negative camber and positive toe (toe-in). For the front axle, the recommendation is to select the center of the tolerance range for toe.

Required Tools or Parts

This repair primarily involves a software update. The updated software for the J1019 control unit will have a new software version (0399 or higher) while retaining the part number 4N0909145C. The specific SVM action code required for the update is CBA002. No special tools beyond standard diagnostic equipment are mentioned, but access to Audi's diagnostic system for SVM procedures and service login 20103 is necessary.

Warranty Information

This repair, as detailed in TSB 2066318/2, is covered under Audi's New Vehicle Limited Warranty for up to 48 months or 50,000 miles, whichever comes first, under Claim Type 110. For Audi Certified Pre-Owned (CPO) vehicles, the repair is also covered under Claim Type G10, provided the owner's eligibility is verified.

The service number for this bulletin is 4841, with a damage code of 0040. Specific labor operations and their associated time units (TUs) are allocated:

• Software Update (Includes checking for DTCs): Labor operation 0151 0000, with time stated on the diagnostic protocol (maximum 60 TUs).
• Perform wheel alignment: Labor operation 4495 0300, time as per SRT (Standard Repair Time).
• Diagnostic Time: GFF, labor operation 0150 0000, 30 TUs.
• Road test prior to service: No allowance (0 TUs).
• Road test after service: Labor operation 0121 0004, 10 TUs. All warranty claims must adhere to the Audi Warranty Policies and Procedures Manual, and claims are subject to review or audit by Audi Warranty.

Important Warnings

Owners should be aware that if their vehicle is outside of the applicable warranty period, this Technical Service Bulletin is for informational purposes only, and the repair may not be covered free of charge. It is always recommended to consult with an authorized Audi dealership to confirm warranty coverage and repair options.

Source: NHTSA ID 10209386