Powertrain
generic / SAE
P0A47
Drive Motor B Position Sensor Circuit Low
The drive motor B rotor position sensor reports a circuit low fault. Phase commutation cannot be controlled reliably.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / numberA / 47
Possible causes
- Signal wire shorted to ground high
- Internal sensor short medium
- Connector pins corroded - high contact resistance low
Symptoms
- EV/hybrid system warning light on
- Reduced motor power or torque
- Possible limp mode or vehicle shutdown
Inspection / repair
- Difficulty: hard
- DIY: shop recommended
- Estimated cost: 400–2500 €
- Estimated time: 2–8 h
- Component: drive motor b position sensor
- Component: wiring harness
- Component: hybrid control module
- MIL / check engine light
- limp mode possible
Sources
References
sae:J2012