2021-2026 Audi Park Assist DTC B187A00 Ghost Fault TSB

Audi has issued Technical Service Bulletin (TSB) 90 24 46 2072566/2 to address diagnostic trouble code (DTC) B187A00, which is labeled as "Park steer assist cancelation" with symptom number 98341. This TSB clarifies that this specific code is an informational or "ghost fault" that does not indicate a functional problem with the vehicle's park assist system or any other component.

This TSB applies to a wide range of 2021-2026 Audi models equipped with Driver Assist Systems, including the A6, A6 allroad, S6, RS 6 Avant, A7, S7, RS 7, A8, S8, Q7, SQ7, Q8, SQ8, RS Q8, e-tron, e-tron Sportback, A7 e quattro, A8 e quattro, e-tron GT, RS e-tron GT, Q8 e-tron, Q8 Sportback e-tron, SQ8 Sportback e-tron, and SQ8 Sportback e-tron.

Important Warnings for Owners

Audi explicitly states several key points regarding this DTC B187A00:

• "No customer concerns, it is found during PDI or any other diagnostic work."
• "The DTC is an unauthorized / ghost fault and does not lead to a restricted function or a message in the instrument cluster."
• "Any claims for repairs based on this DTC may be denied by warranty."
• "This TSB is informational only and not applicable to any Audi Warranty."

These warnings mean owners should not expect any issues from this code, nor should they seek repairs for it, as such repairs will not resolve a functional problem and may not be covered by warranty.

What is DTC B187A00?

DTC B187A00, identified as "Cancel parallel parking assist," is an unauthorized or ghost fault. This code is typically stored in the Driver Assistance Systems control module -J1121- (address word 00A5) during vehicle startup. However, it becomes passive almost immediately once the control module completes its initialization process.

This means that while the code might appear during a diagnostic scan, it does not represent an active or persistent malfunction. The system is designed to clear this condition on its own without intervention.

No Symptoms or Warning Lights

Owners of affected 2021-2026 Audi vehicles will not experience any noticeable symptoms or warning lights related to the Audi park assist B187A00 fault. The presence of this code does not impact the functionality of the park assist system or any other driver assistance features. There will be no messages displayed in the instrument cluster indicating a problem.

No Repair Required

Because DTC B187A00 is a ghost fault that does not affect vehicle operation or trigger any warnings, no repair procedure is necessary. Audi emphasizes that this TSB is purely informational. Attempting repairs based solely on the presence of this code is unwarranted and will not resolve any underlying issue, as there isn't one. Furthermore, any such repair claims may be denied under warranty.

TSB Details and Revisions

This Technical Service Bulletin, identified as 90 24 46 2072566/2, was issued on November 20, 2024. It is a revision (Revision 2) that supersedes a previous bulletin, Group 90 number 23-66, dated December 22, 2023. The revision included updates to the header, added Model Year 2025, and updated customer codes.

Owner Action

If you own a 2021-2026 Audi model and a diagnostic scan reveals DTC B187A00, there is no need for concern or action. This code is a benign "ghost fault" that does not require any service or repair. You should not experience any issues with your Audi park assist B187A00 system or any other vehicle functions due to this code.

Source: NHTSA ID 11011273