2024-2025 Audi Steering Warning Lamp and DTCs B200000, B200FF4

Symptoms

Owners of certain 2024-2025 Audi models may experience a specific issue upon starting their vehicle. The primary symptom is when the "yellow steering warning lamp lights up and the power steering assistance is reduced". This condition indicates a potential problem with the power steering system, affecting driving feel and control. If you notice an Audi steering warning lamp B200000 or similar behavior, it's important to understand the underlying cause.

Fault Codes / DTCs

When the yellow steering warning lamp appears and power steering assistance is reduced, technicians may find specific Diagnostic Trouble Codes (DTCs) stored in the steering control unit, identified as J500 (diagnostic address 0044). These codes point to a software-related issue rather than a mechanical failure.

Code	Symptom	Module
B200000	symptom 4176	J500
B200FF4	symptom 16712020	J500
B200000	symptom 4432	J500

Background and Revisions

This Technical Service Bulletin, 48 PSS 2073087/2, was initially published on February 19, 2024. It supersedes a previous bulletin, Group 48 number 24-62, also dated February 19, 2024. Revision 2, dated September 10, 2024, updated the header to include additional model years and revised the warranty information. Audi has identified the root cause as a software issue within the J500 steering control unit. An improved software solution is currently planned for release in December 2024.

Diagnosis and Interim Solution

Audi has determined that the DTCs B200000 and B200FF4, which cause the yellow steering warning lamp and reduced power steering, are set to passive. This means that after the vehicle completes its next bus sleep cycle, the steering functionality will no longer be restricted, and the steering warning lamp will no longer light up. Therefore, no immediate repair or component replacement is necessary for this condition.

Important Warnings for Owners

Audi has issued critical guidance regarding this issue to prevent unnecessary repairs and costs. Owners should be aware of the following:

• Do not replace the steering, it will not fix the problem. The issue is software-related, and replacing hardware components will not resolve the underlying cause.
• No repairs are necessary at this point, as a software update is expected to be available by the end of Q4 2024.
• The vehicle can be returned to the customer even with the DTCs present, as they will become passive after a bus sleep cycle.

Warranty Information

For vehicles still under warranty, this Technical Service Bulletin (TSB 2073087/2) outlines specific claim procedures. The Service Number is 4835, and the Damage Code is 0040. Labor operations for addressing this issue include GFF 0150 0060 (time stated on the diagnostic protocol) and GFF 0150 0010 (referencing SRT). Road tests conducted before and after the service procedure are not eligible for separate time unit allowances. All warranty claims must adhere to the Audi Warranty Policies and Procedures Manual and are subject to review and audit by Audi Warranty. If the vehicle is outside of any warranty, this TSB is for informational purposes only.

Next Steps for Owners

If you experience the "yellow steering warning lamp lights up and the power steering assistance is reduced" in your 2024-2025 Audi, you should be aware that this is a known software issue. While a permanent software update is anticipated by December 2024, your vehicle's steering functionality should return to normal after a bus sleep cycle. You do not need to replace any steering components. If you have concerns or questions, contact your authorized Audi service center.

NHTSA ID: 10257523