P0C09

Drive Motor B Phase U-V-W Circuit Low

Severity

🔴 High

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Hybrid system power reduction
Unstable operation of the electric motor
Malfunction indicator lamp (MIL) comes on
Possible vibrations during operation of the electric motor
Switching to emergency operation

Causes

Open circuit or short circuit in the phase wire circuit
Voltage inverter fault
Poor contact in motor circuit connectors
Internal damage to motor B
Problems with the hybrid system control unit

How to Fix

Check the integrity of the wiring harness for phases U, V, W
Check the resistance of the motor windings B
Diagnose the operation of the voltage inverter
Check connections and connectors in the circuit
Scan the hybrid system control module for additional codes

Related codes

P0C0A P0C0B P0C08