What does this code mean?
The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.
A code identifies a detected condition, not a part that must automatically be replaced.
Manufacturer wording
Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
U11B9-00Lost Communication With RF HubManufacturer communications
9Original wording in English
AUDI
Reported code forms U11B900
This bulletin provides information when the volume control cannot be operated; background lighting is not working; DTC U11B900.
AUDI
Reported code forms U11B900
This bulletin provides a software update when the volume control cannot be operated, background lighting not working; DTC U11B900 voume control, no communication.
JEEP
Reported code forms U11B9-00
Not applicable to vehicles built for US market. Multiple Systems Repair Bundle Campaign Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the…
AUDI
Reported code forms U11B900
This bulletin provides information when the volume control is not working; MIB3. DTC U11B900.
LEXUS
Reported code forms U11B900 U11B987
TT: Vehicle may exhibit one or all in combination of the following DTC U115687 or U11B900 or U11B987 or U11BF87 shortly after short pin installed during PDS/PDI.
LEXUS
Reported code forms U11B900 U11B987
TT: Vehicle may exhibit one or all in combination of the following DTC U115687 or U11B900 or U11B987 or U11BF87 shortly after short pin installed during PDS/PDI
Check vehicle applicability
49A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Audi | A3 | 2024 |
| Audi | A3 | 2023 |
| Audi | A3 | 2022 |
| Audi | A4 ALLROAD | 2019 |
| Audi | A4 ALLROAD | 2018 |
| Audi | A5 | 2025 |
| Audi | A5 | 2019 |
| Audi | A5 | 2018 |
| Audi | A6 SPORTBACK E-TRON | 2025 |
| Audi | E-TRON GT | 2024 |
| Audi | E-TRON GT | 2023 |
| Audi | E-TRON GT | 2022 |
Before replacing a part
Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.
Can I keep driving?
A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.