Drive Motor B Position Sensor Not Learned
The hybrid control module has not learned the rotor position offset for drive motor B. Phase commutation cannot be optimised until learning completes.
Affected components
- Drive motor b position sensor
- Hybrid control module
Common causes
- High likelihood: Adaptation lost after battery disconnect
- Medium likelihood: Sensor replaced without learn procedure
Possible symptoms
- EV/hybrid system warning light on
- Reduced motor power or torque
- Possible limp mode or vehicle shutdown
Diagnostic notes
- The malfunction indicator lamp may illuminate
- A drive cycle may be required after repair
Related codes
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.