OBD-II code · Powertrain (generic)
P0C1A Drive Motor B Torque Delivered Performance
The hybrid control module detects that drive motor B torque output does not match the commanded value. Magnet weakness, phase imbalance, or feedback drift.
Is it safe to drive with P0C1A?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyMagnet flux degraded
- PossiblePhase current imbalance
Symptoms
- EV/hybrid system warning light on
- Reduced motor power or torque
- Possible limp mode or vehicle shutdown
Repair at a glance
- Difficulty
- Hard
- DIY friendly
- Best left to a mechanic
- Typical labour
- 3–16 h
- Emissions test
- Usually unaffected
- Parts involved
- Drive Motor B, Hybrid Control Module
Related codes
- P0C19Drive Motor A Torque Delivered Performance
- P0C17Drive Motor A Position Sensor Not Learned
- P0C18Drive Motor B Position Sensor Not Learned
- P0C1BElectric/Auxiliary Transmission Fluid Pump Control Module Internal Temperature Too High
- P0C1CElectric/Auxiliary Transmission Fluid Pump Control Module Internal Temperature Sensor Circuit
- P0C1DElectric/Auxiliary Transmission Fluid Pump Control Module Internal Temperature Sensor Circuit Range/Performance
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.