Powertrain
generic / SAE
P2E29
Drive Motor A Excitation Current Sensor Circuit Low Voltage
The drive motor A excitation current sensor reports a fault. Field excitation cannot be measured or controlled reliably.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / numberE / 29
Possible causes
- Sense 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 a excitation circuit
- Component: drive motor a
- Component: hybrid control module
- MIL / check engine light
- limp mode possible
Sources
References
sae:J2012