Drive Motor B Phase W Current Sensor Circuit Range/Performance

Where it lives

For P0BFA, the description names the sensor as the part involved.

Check these first

• A phase W current sensor reading outside its normal range
• High resistance in the phase W sensor circuit
• A sensor B phase calibrated or seated wrong
• A motor control module no longer matching the signal

What to do next

1. Read drive motor B phase W current on a scan tool
2. Compare the phase W reading to the phase U and V readings
3. Test the phase W sensor circuit for added resistance
4. Check the phase W sensor calibration and seating
5. Replace the phase W current sensor if it drifts off range
6. Clear the code and retest

Look up another code