P0BFA

Drive Motor B Phase W Current Sensor Circuit Range/Performance

Severity

🔴 High

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Check Engine light comes on
Reduced motor power
Switching the hybrid system into emergency mode
Unstable operation of the hybrid system
Increased fuel consumption

Causes

Phase W current sensor fault
Open or short circuit in the sensor circuit
Poor contact in sensor connectors
Problems with the motor control unit
Mechanical damage to the wiring harness

How to Fix

Check the continuity of the current sensor circuit
Inspect the connectors and contacts of the sensor
Check resistance and sensor signal
If necessary, replace the current sensor
Check and reflash the control unit if necessary

Related codes

P0BF8 P0BF9 P0BFB