P0E8FDrive Motor A Inverter Voltage Sensor B Circuit High
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- Needs a drive cycle to confirm a fix
- How the car detects it
- P0E8F is the upper-limit fault of inverter voltage sensor B on drive motor A. Mitsubishi's 2023 Outlander PHEV sets it when the main channel at capacitor 2 (V2M) reports at least 4.75 V for 0.16 s, again with the unit supplied at 8 V or above, and lists it as a range check maximum. A reading pinned at the top usually comes from the signal touching the sensor supply, from a lost sensor ground or from a defect in the measuring circuit. A real overvoltage of the bus cannot be ruled out, but it has its own code, P0C79, and would normally show on several channels at once; if sensor A (P0D30) and the battery voltage are normal, the B channel itself is suspect. P0E8E is the low counterpart. The controller protects the inverter by limiting or stopping electric drive.
- What you may notice
- MIL and hybrid system warning
- Electric drive switched off or strongly reduced
- Likely causes
- LikelyMeasuring circuit for capacitor 2 inside the power drive unit defective
- PossibleSignal shorted to sensor supply or lost sensor ground
- RareActual overvoltage on the high-voltage bus
- 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: €100 – €4,000
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.