P2E1BDrive Motor A Phase X Current Sensor Circuit
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- P2E1B reports an electrical fault in the circuit of the phase X current sensor of drive motor A, without a separate low or high verdict. X, Y and Z name a second three-phase winding group: a Mitsubishi Electric patent on two-group motors for hybrid drives couples one current sensor to the conductor of each of the six phases. No manufacturer documents P2E1B publicly. Ford's 2019 hybrids supervise a reference voltage for the motor current sensors and flag it outside 4.5 to 6 V for 500 ms; a fault there would hit every phase at once. CARB allows a sensor mounted on a board inside a control unit to report wiring and range faults under one shared code, so P2E1B may stand in for P2E1D and P2E1E. Since the sensor sits in the inverter, the repair is usually that unit.
- What you may notice
- Hybrid system warning lamp and MIL
- Reduced electric drive or no electric drive
- Rough or noisy motor operation under load
- Likely causes
- LikelyPhase X current sensor in the inverter failed
- PossibleReference supply or ground of the current sensors faulty
- PossibleLoose or corroded low-voltage connector at the inverter
- RareDefect on the motor control board that evaluates the sensor
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €200 – €5,000
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.