B04xx — Restraints, airbags and occupant sensing

8 codes in this range. Body codes — airbags, restraints, climate and interior systems.

• 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