OBD-II FAULT CODE
B2404
Audio Steering Wheel Switch Circuit Fault
Meaning, symptoms, likely causes, diagnostic checks and repair guidance for B2404.
- Body/accessory warning lamp or feature not working
- Steering warning lamp or heavy/abnormal steering
- Low voltage
- Steering angle/torque sensor fault
- Power steering motor/module issue
- Wiring fault
- Check related fuses, connectors, grounds and switch/module power supply
- Check battery/charging system
- Calibrate steering angle sensor if required after repair/alignment
- Repair wiring/power supply, perform calibration, replace failed sensor/module after confirmation
Related Codes
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Disclaimer: Information is provided for general guidance only and may not apply to all vehicles. Always consult a qualified technician.