2021-2022 Audi Steering Warning Lamp B200FF0 TSB

Owners of certain 2021-2022 Audi models may experience the illumination of the steering warning lamp on their dashboard. This condition is often accompanied by the storage of Diagnostic Trouble Code (DTC) B200FF0 in the rear axle steering control module. Audi has released Technical Service Bulletin (TSB) 48 21 98 2063042/1 to provide technicians with a procedure to address this specific issue.

This TSB applies to various Audi models equipped with Audi dynamic all-wheel steering, including the 2021-2022 Audi A6, A7, S6, S7, S8, RS 6 Avant, RS 7, and A6 allroad.

Symptoms

Owners will typically notice one primary symptom related to this issue:

• "The steering warning lamp is on."

This warning light indicates a potential problem with the vehicle's steering system, specifically involving the rear axle steering control module.

Fault Codes / DTCs

When diagnosing this issue, technicians will find the following Diagnostic Trouble Code (DTC) stored in the rear axle steering control module, J1019 (address word 00CB):

Code	Description	Symptom Code
B200FF0	internal malfunction	251

Diagnosis / Trigger Conditions

The root cause of the Audi steering warning lamp B200FF0 issue is identified as a premature response from the internal monitoring function within the rear axle steering control module. This means the control module is flagging an internal malfunction too sensitively, leading to the warning lamp illuminating even when there might not be a critical hardware failure.

Repair Procedure Summary

Audi's TSB 48 21 98 2063042/1 outlines two potential service options, depending on the nature of the DTC entry:

Option 1: Passive/Sporadic Entry

If the DTC B200FF0 is stored as a passive or sporadic entry, the repair procedure is straightforward:

1. Delete the Diagnostic Trouble Code (DTC).
2. Release the vehicle.

Option 2: Active/Static Entry

If the DTC B200FF0 is stored as an active or static entry, a more involved procedure is required:

1. Perform the rear steering basic settings within the self-diagnosis function of the control module.
2. A specific login code, Code 20103, is necessary to access this procedure.
3. After completing the basic settings, release the vehicle.

Important Warnings

Technicians are advised that this procedure must only be used when the symptom code 251 is present alongside DTC B200FF0. If your Audi steering warning lamp B200FF0 is on, ensure your service center confirms the symptom code.

Warranty Information

This service is covered under Audi's warranty policies for eligible vehicles. The claim types and conditions are as follows:

• Claim Type 110: Applicable for vehicles up to 48 months or 50,000 miles.
• Claim Type G10: For Certified Pre-Owned (CPO) vehicles, requiring owner verification.

If your vehicle is outside of the applicable warranty period, this Technical Service Bulletin is for informational purposes only, and repair costs may not be covered. The service number for this repair is 4841, with a damage code of 0040. Diagnostic time is GFF 0150 0000 (maximum 30 Technical Units). Road tests before and after the service procedure are allocated 0 and 10 Technical Units, respectively.

NHTSA ID: 10191139