P0C17
Drive Motor A Position Sensor Not Learned
The hybrid control module has not learned the rotor position offset for drive motor A. Phase commutation cannot be optimised until learning completes.
- Check engine light: Yes
- Emissions related: No
- Repair difficulty: easy
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.
- Adaptation lost after battery disconnectCommon
- Sensor replaced without learn procedurePossible
Parts involved
- Drive Motor A Position Sensor
- Hybrid Control Module
P0C17 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.