What Does P0A67 Mean?
Drive Motor B Phase U current is reading below the expected minimum threshold. The hybrid control module detects that Phase U stator current in the secondary drive motor is abnormally low during operation. This typically indicates an open Phase U winding, a disconnected cable, or a failed-low current sensor.
Safety Warning
Single-phase loss causes severe vibration and overheating. Do not drive — tow to service.
Common Causes
35%
Open circuit in Phase U stator winding of drive motor B
25%
Phase U current sensor failure reading low in motor B inverter
25%
Disconnected or high-resistance Phase U cable to motor B
15%
Motor B inverter Phase U IGBT stuck open
Diagnostic Steps
1
Step 1: In live data, verify Phase U reads near zero for motor B while V and W show normal current, confirming a U-specific low condition.
2
Step 2: With HV system de-energized, check Phase U winding continuity on motor B from terminal to neutral point.
3
Step 3: Inspect Phase U cable and terminals for loose connections, corrosion, or damage. Torque to specification.
4
Step 4: Test the motor B inverter Phase U IGBT pair for opens using diode-check mode.
5
Step 5: Replace the faulty component and confirm balanced three-phase current during a controlled motor test.
Estimated Repair Cost
$500 - $3,500
Parts + labor, varies by vehicle and location
Drive Motor B Phase U current is reading below the expected minimum threshold. The hybrid control module detects that Phase U stator current in the secondary drive motor is abnormally low during operation. This typically indicates an open Phase U winding, a disconnected cable, or a failed-low curren...
The most common cause of P0A67 (Drive Motor "B" Phase U Current Low) is: Open circuit in Phase U stator winding of drive motor B
Typical repair costs for P0A67 range from $500 to $3,500, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Single-phase loss causes severe vibration and overheating. Do not drive — tow to service.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P0A67 to identify the root cause.
OBDHut Mobile App
Scan codes directly from your car with the OBDHut app.
Coming Soon
Quick Info
Category
Powertrain
System
Hybrid Drive Motor System
Difficulty
Type
Generic (SAE)
Recommended Tools
OBD2 Scanner
A quality scan tool helps you read codes, view live data, and clear faults.
