P0BF1

Drive Motor B Phase U Current Sensor Circuit

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$56–167 (est.)

Symptoms

Check Engine light comes on
Reduced motor power
System transition to emergency mode
Unstable operation of the hybrid system
Increased fuel consumption (in hybrid systems)

Causes

Phase U current sensor fault
Open or short circuit in the sensor circuit
Wiring harness damage
Corrosion of electrical connections
Control module malfunction

How to Fix

Check the integrity of the sensor circuit
Check resistance and sensor signals
Inspect electrical connections for corrosion
Replace current sensor if necessary
Check and replace wiring harness if necessary

Related codes

P0BF2 P0BF3 P0BF0