B04xx codes

8 codes in this group. The last column counts owner complaints that mention the code.

CodeMeaningOwner reports
B0420Audio System Internal Failure
B0425Audio Amplifier Internal Failure
B0440Bluetooth Module Fault
B0445USB Hub Fault
B0450Microphone Circuit
B0455Display Module Internal Failure
B0460Bluetooth Antenna Circuit
B0490Display Backlight Circuit