OBD-II FAULT CODE
B2443
Powertrain Performance Mode Switch Circuit failure
Meaning, symptoms, likely causes, diagnostic checks and repair guidance for B2443.
- Body/accessory warning lamp or feature not working
- Signal out of expected range
- Mechanical issue affecting sensor reading
- Slow/sticking actuator
- Check related fuses, connectors, grounds and switch/module power supply
- Compare live data to expected value and inspect mechanical operation
- Repair mechanical cause, clean/replace sticking actuator, or replace sensor 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.