OBD Guide

P0BFC

Drive Motor B Phase W Current Sensor Circuit High

Severity
🔴 High
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Check Engine light comes on
  • Hybrid system power reduction
  • Switching to emergency mode
  • Unstable operation of the electric motor
  • Increased fuel consumption

Causes

  • Phase W current sensor fault
  • Open or short circuit in the sensor circuit
  • Poor contact in connectors
  • Malfunction of the hybrid system control module
  • Sensor power problems

How to Fix

  1. Check the continuity of the current sensor circuit
  2. Check connectors and contacts for oxidation
  3. Test the current sensor with a multimeter
  4. Check the power supply and ground of the sensor
  5. Replace current sensor if necessary
  6. Flash or replace the control module if necessary

Related codes

Error P0BFC by Vehicle Brand