2024 Audi A5 Seatbelt Microphone DTC B104813
Audi Technical Service Bulletin 2059607/3 informs owners and technicians about Diagnostic Trouble Code B104813, 'Telephone microphone Open circuit,' which may appear in the seatbelt microphone control module (J886) of 2020-2024 Audi A5 Cabriolet vehicles. This TSB clarifies that the DTC is…
David Chen2024 Audi A5
Symptoms
Owners of 2020-2024 Audi A5 Cabriolet vehicles may find a Diagnostic Trouble Code (DTC) stored in the seatbelt microphone control module, also known as J886 (address word 00A6). The specific fault code is B104813, which indicates a 'Telephone microphone Open circuit'. This condition does not typically present with any noticeable operational issues to the driver.
Fault Codes / DTCs
The following Diagnostic Trouble Code (DTC) may be stored in the seatbelt microphone control module, J886 (address word 00A6):
| Code | Description |
|---|---|
| B104813 | Telephone microphone Open circuit |
Technical Background
Audi Technical Service Bulletin 91 23 77 2059607/3 explains the reason behind the appearance of the Audi A5 DTC B104813. Starting with model year 2020, the microphone connection was reconfigured to the ConBox system. Due to this change, the B104813 DTC is expected to be entered and stored in the seatbelt microphone control module as a normal operational characteristic of the system.
This bulletin, identified as 91 23 77 2059607/3, is the third revision of this information, superseding Technical Service Bulletin Group 91 number 21-35 dated September 22, 2021. The latest revision updates the model years covered and clarifies the condition.
Important Warning: No Repair Needed
Audi explicitly states that no repair is available or necessary for the Audi A5 DTC B104813. This Diagnostic Trouble Code is an expected entry in the seatbelt microphone control module, J886.
- The DTC B104813 (static or intermittent) in the seatbelt microphone control module, J886 (address word 00A6) can be ignored.
- Do not perform any repairs. Any repairs performed for this specific concern may be denied warranty coverage by Audi.
What Owners Should Know
If you own a 2020-2024 Audi A5 Cabriolet and a technician informs you about the Audi A5 DTC B104813, rest assured that this is a known and expected condition. According to Audi's official communication, this code does not indicate a malfunction and should not be repaired. This Technical Service Bulletin is informational only and does not apply to any Audi warranty claims related to this specific DTC.
If you encounter this code during a vehicle scan, there is no need for concern or action. Inform your service center that this DTC is to be disregarded as per Audi Technical Service Bulletin 91 23 77 2059607/3.
Production Solution
Audi has indicated that a production solution is not applicable for this condition, as the presence of the DTC B104813 is considered normal system behavior for the affected vehicles.
Source: NHTSA ID: 10232105
Frequently Asked Questions
- What is DTC B104813 in my Audi A5?
- DTC B104813 is a Diagnostic Trouble Code that stands for 'Telephone microphone Open circuit.' It is typically stored in the seatbelt microphone control module (J886) of 2020-2024 Audi A5 Cabriolet vehicles.
- Should I be concerned about the 'Telephone microphone Open circuit' fault?
- No, according to Audi Technical Service Bulletin 2059607/3, this DTC is an expected entry due to a microphone connection change starting in model year 2020. It does not indicate a functional problem and should be ignored.
- Will this issue affect my vehicle's warranty?
- Audi states that this Technical Service Bulletin is informational only and does not apply to any Audi warranty. Furthermore, any repairs performed specifically for the DTC B104813 concern may be denied warranty coverage, as no repair is deemed necessary.
- What should I do if my dealer recommends a repair for DTC B104813?
- You should inform your dealer about Audi Technical Service Bulletin 91 23 77 2059607/3, which explicitly states that no repair is available or necessary for DTC B104813, and that the code can be ignored. Performing repairs for this specific issue is not recommended by Audi.
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