P0544
Exhaust Gas Temperature Sensor Circuit (Bank 1 Sensor 1)
Detailed Description
The Bank 1 upstream exhaust gas temperature sensor signal is abnormal.
Possible Causes
Exhaust gas temperature sensor failure
Sensor wiring open or shorted
Sensor connector poor contact.
Solutions & Repair Guide
Measure sensor resistance value; Check wiring continuity; Replace the sensor if abnormal.
Disclaimer: The information above is for reference only and does not constitute professional repair advice.
Actual causes may vary depending on vehicle make, model, year, and configuration. Always consult a qualified technician for accurate diagnosis.