OBD-II FAULT CODE
B2321
Mirror Driver Horizontal Feedback Potentiometer Circuit Open
Meaning, symptoms, likely causes, diagnostic checks and repair guidance for B2321.
- Body/accessory warning lamp or feature not working
- Faulty switch/actuator
- Broken wiring in door hinge area
- Blown fuse
- Module coding/calibration issue
- Open circuit
- Check related fuses, connectors, grounds and switch/module power supply
- Check switch input, actuator output, fuse and door-jamb wiring
- Check connector fitment and continuity from module to component
- Repair broken wiring, replace failed switch/actuator, recalibrate if required
- Repair open wire/connector or replace the failed component after continuity test
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.