P0C19
Drive Motor A Torque Delivered Performance
The hybrid control module detects that drive motor A torque output does not match the commanded value. Magnet weakness, phase imbalance, or feedback drift.
- Check engine light: Yes
- Emissions related: No
- Repair difficulty: hard
Symptoms
- EV/hybrid system warning light on
- Reduced motor power or torque
- Possible limp mode or vehicle shutdown
Common causes
Ordered by how often each turns out to be the cause.
- Magnet flux degradedCommon
- Phase current imbalancePossible
Parts involved
- Drive Motor A
- Hybrid Control Module
P0C19 is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.