P0BF3

Symptoms

• Check Engine light comes on
• Reduced motor power
• Unstable operation of the hybrid system
• Increased fuel consumption (in hybrid vehicles)

Causes

• Phase U current sensor fault
• Open or short circuit in the sensor circuit
• Poor contact in connectors
• Wiring harness damage
• Motor control unit malfunction

How to Fix

1. Check the continuity of the current sensor circuit
2. Inspect connectors and contacts for corrosion
3. Check resistance and sensor signal
4. If necessary, replace the phase U current sensor
5. Check and, if necessary, replace the control unit

Related codes

Error P0BF3 by Vehicle Brand