Powertrain
generic / SAE
P0C18
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.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / numberC / 18
Possible causes
- Adaptation lost after battery disconnect high
- Sensor replaced without learn procedure medium
Symptoms
- EV/hybrid system warning light on
- Reduced motor power or torque
- Possible limp mode or vehicle shutdown
Inspection / repair
- Difficulty: easy
- DIY: shop recommended
- Estimated cost: 50–250 €
- Estimated time: 0.3–1.5 h
- Component: drive motor b position sensor
- Component: hybrid control module
- MIL / check engine light
- drive cycle required
Sources
References
sae:J2012