Powertrain
generic / SAE
P2E28
Drive Motor A Excitation Current Sensor Performance
The drive motor A excitation current sensor reports a fault. Field excitation cannot be measured or controlled reliably.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / numberE / 28
Possible causes
- Sensor characteristic drifted high
- High-resistance contact medium
- Sensor element aged beyond calibration window 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 a excitation circuit
- Component: drive motor a
- Component: hybrid control module
- MIL / check engine light
- limp mode possible
Sources
References
sae:J2012