B04xx codes: Body codes B0400-B0499
8 body trouble codes from B0420 to B0490. They mostly involve the infotainment module, bluetooth antenna, telematics module and display module.
All B04xx codes
0 of these codes usually turn on the check engine light; 2 can often be fixed at home.
| Code | Meaning | Difficulty |
|---|---|---|
| B0420 | Audio System Internal Failure | Medium |
| B0425 | Audio Amplifier Internal Failure | Medium |
| B0440 | Bluetooth Module Fault | Medium |
| B0445 | USB Hub Fault | Easy |
| B0450 | Microphone Circuit | Easy |
| B0455 | Display Module Internal Failure | Medium |
| B0460 | Bluetooth Antenna Circuit | Medium |
| B0490 | Display Backlight Circuit | Medium |