EV Diagnostics
Verified EV diagnostic knowledge page

Audi B1A9913

Bluetooth antenna, low energy interruption (active/static) Technical Background A software related malfunction may cause this DTC to be entered erroneously (ghost DTC). It has no e

DriveNot yet established by verified evidence. However, Audi states that this erroneous DTC has no effect on vehicle functionality.
ChargeNot yet established by verified evidence.
ServiceContact an Audi service facility if confirmation is needed. Audi’s cited guidance states that no repair is available at this time and instructs technicians not to perform a repair for this condition.
Confidence95%

Quick answer

For affected 2023–2024 US Audi e-tron GT and RS e-tron GT vehicles, DTC B1A9913 may be an erroneous software-related “ghost DTC.” Audi states it has no effect on vehicle functionality and that no repair is available at this time.

This page separates verified manufacturer/regulator evidence from supporting material. Unsupported causes, repairs or safety conclusions are not guessed.

Video guides

Watch Videos

Relevant videos play here without leaving this diagnostic page.

No sufficiently relevant embeddable video has been accepted for this diagnostic yet.

Videos are supporting material and never override OEM or regulator evidence.

1. What does B1A9913 mean?

For affected 2023–2024 US Audi e-tron GT and RS e-tron GT vehicles, DTC B1A9913 may be an erroneous software-related “ghost DTC.” Audi states it has no effect on vehicle functionality and that no repair is available at this time.

2. Technical explanation

B1A9913 is stored in the emergency call and communications unit, J989 (address word 0075), and is described as: “Bluetooth antenna, low energy interruption (active/static).” According to Audi’s February 2, 2023 manufacturer communication, a software-related malfunction may cause the DTC to be entered erroneously. Audi identifies this as a ghost DTC.

3. What system is affected?

Emergency call and communications unit, J989 (address word 0075); Bluetooth low-energy antenna diagnostic.

4. How serious is this code?

Audi states the erroneous DTC has no effect on vehicle functionality. The database does not otherwise assign a severity level.

5. Symptoms you may notice

Not yet established by verified evidence.

6. Possible causes

  • A software-related malfunction may cause B1A9913 to be stored erroneously as a ghost DTC.

7. Can I still drive the vehicle?

Not yet established by verified evidence. However, Audi states that this erroneous DTC has no effect on vehicle functionality.

8. Can I charge the vehicle?

Not yet established by verified evidence.

9. What you can safely do

  • Record the code and the control module where it was found: emergency call and communications unit J989, address word 0075.
  • Have an Audi service facility confirm whether the stored code matches the condition described in Audi communication 10231573.
  • Do not authorize a repair solely for this DTC based on the cited Audi guidance.

10. Step-by-step troubleshooting

  1. Confirm that DTC B1A9913 is stored in J989, address word 0075.
  2. Review Audi manufacturer communication 10231573 / A9123682069361_1 for applicable 2023–2024 e-tron GT and RS e-tron GT vehicles.
  3. No further diagnostic or repair procedure is established by the verified evidence.

11. When to contact service

Contact an Audi service facility if confirmation is needed. Audi’s cited guidance states that no repair is available at this time and instructs technicians not to perform a repair for this condition.

12. What the service center may check

  • Confirm vehicle applicability: 2023–2024 Audi e-tron GT or RS e-tron GT, US market.
  • Confirm B1A9913 is present in the emergency call and communications unit J989, address word 0075.
  • Refer to Audi manufacturer communication 10231573 / A9123682069361_1.

13. Possible repair or resolution

  • No repair is available at this time.
  • Audi instructs: do not perform any repair.
  • Audi states that a production solution was planned for model year 2025.

14. Affected vehicles

15. Related TSBs / service bulletins

  • Audi manufacturer communication / NHTSA Manufacturer Communication PDF 10231573, document A9123682069361_1, published February 2, 2023. It applies to 2023–2024 Audi e-tron GT and RS e-tron GT vehicles and addresses B1A9913 stored in J989.
  • The communication states that the DTC may be a software-related ghost DTC, has no effect on vehicle functionality, and has no repair available at this time.

16. Recall information

No recall relationship is established by verified evidence.

17. Official manufacturer information

Official source: NHTSA Manufacturer Communication PDF 10231573, Audi document A9123682069361_1: https://static.nhtsa.gov/odi/tsbs/2023/MC-10231573-0001.pdf

19. Frequently asked questions

What does Audi DTC B1A9913 mean?

It is described as “Bluetooth antenna, low energy interruption (active/static)” and is stored in the emergency call and communications unit J989, address word 0075.

Is B1A9913 necessarily a failed Bluetooth antenna?

No. Audi states that a software-related malfunction may enter this DTC erroneously as a ghost DTC.

Does this code affect vehicle functionality?

Audi states that the erroneous DTC has no effect on vehicle functionality.

Is there a repair for B1A9913?

Audi’s cited communication states that no repair is available at this time and instructs technicians not to perform a repair.

Which vehicles are covered by the verified communication?

The verified applicability is US-market 2023–2024 Audi e-tron GT and RS e-tron GT vehicles.

20. Sources & verification

Verified
Audi B1A9913: Bluetooth antenna, low energy interruption… | EV Diagnostics