2023-2024 Audi e-tron GT Bluetooth Antenna DTC B1A9913

This article provides essential information for owners of 2023-2024 Audi e-tron GT and RS e-tron GT vehicles regarding Diagnostic Trouble Code (DTC) B1A9913. Audi has issued Technical Service Bulletin (TSB) 91 24 91 2069361/2 to address this specific fault code, which may appear in the emergency call and communications unit (J989). This TSB is crucial for understanding why this code might be present and what, if any, action is required.

Symptoms

Owners of affected Audi e-tron GT models may find that their vehicle's diagnostic system has stored DTC B1A9913. This code is specifically described as "Bluetooth antenna, low energy Open circuit (active/static)" and is typically found in the emergency call and communications unit (J989), which is identified by address word 0075. While this code indicates a potential issue with the Bluetooth antenna, Audi's TSB clarifies its true nature.

Fault Codes / DTCs

The primary diagnostic trouble code addressed by Audi TSB 91 24 91 2069361/2 is:

Code	Description	Module
B1A9913	Bluetooth antenna, low energy Open circuit (active/static)	J989 (emergency call and communications unit - address word 0075)

Technical Background

According to Audi, DTC B1A9913 is often an erroneous "ghost DTC" caused by a software-related malfunction. This means that despite the code being stored, there is no actual fault with the Bluetooth antenna or its functionality. The TSB explicitly states that this condition "has no effect on the vehicle's functionality," reassuring owners that their vehicle's performance or safety is not compromised by the presence of this code. This is important for owners searching for "Audi e-tron GT Bluetooth antenna DTC B1A9913" and wondering about its implications.

Important Warnings for Owners

Audi TSB 91 24 91 2069361/2 contains critical instructions for both technicians and owners:

• "No repair is available at this time."
• "Do not perform any repairs. Any repairs for this concern may be denied."

This means owners should not seek repairs for DTC B1A9913, as it is a known software anomaly rather than a hardware failure. Attempting repairs for this specific issue may result in unnecessary costs and could potentially void warranty claims related to this specific condition.

Production Solution

Audi plans to implement a production solution for this software-related malfunction in Model Year 2025 (MY25) vehicles. This indicates that future models will likely not experience the erroneous DTC B1A9913. However, for current 2023-2024 Audi e-tron GT and RS e-tron GT vehicles, the guidance remains to not perform any repairs.

Bulletin Revision History

This Technical Service Bulletin, 91 24 91 2069361/2, is a revision of an earlier bulletin. The initial publication (Revision 1) was dated February 2, 2023. Revision 2, issued on April 3, 2024, updated the "Condition" section to fix a translation error. This current TSB supersedes Technical Service Bulletin Group 91 number 23-68, which was dated February 2, 2023. Owners searching for the older bulletin number 23-68 should refer to this updated document.

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Source: NHTSA ID: 10253280