Fault codes B04xx: audio, displays and multimedia
Body codes common to all makes: comfort, lighting, openings, interior equipment.
Official codes: 8, from smallest to largest. Tap a code to get a direct link to share.
| Code | Meaning |
|---|---|
| B0420 | Audio System Internal Failure |
| B0425 | Audio Amplifier Internal Failure |
| B0440 | Bluetooth Module Fault |
| B0445 | USB Hub Fault |
| B0450 | Microphone Circuit |
| B0455 | Display Module Internal Failure |
| B0460 | Bluetooth Antenna Circuit |
| B0490 | Display Backlight Circuit |
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Official meanings: OBDex (public domain, CC0). Manufacturer codes: dtc-database (MIT license), probable meanings not verified by the manufacturers. The same meaning can vary depending on the model: always have a diagnosis confirmed by a professional.