P0E8F code meaning
Drive Motor A Inverter Voltage Sensor B Circuit High
Powertrain system Generic code P0Exx codes Check engine light
What P0E8F means
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.
P0E8F at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyWorkshop only
- Typical labor0.5 to 6 hours
- Clears after repairAfter a drive cycle
Symptoms of P0E8F
- MIL and hybrid system warning
- Electric drive switched off or strongly reduced
Common causes of P0E8F
- Most likelyMeasuring circuit for capacitor 2 inside the power drive unit defective
- PossibleSignal shorted to sensor supply or lost sensor ground
- Less likelyActual overvoltage on the high-voltage bus
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Drive motor a inverter voltage sensor bWiring harnessHybrid control module
What each part of P0E8F means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 8F | The exact fault in that area. |
What to do next
- Note P0E8F and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P0E8F
What does P0E8F mean?
P0E8F means "Drive Motor A Inverter Voltage Sensor B Circuit High". P0E8F is the upper-limit fault of inverter voltage sensor B on drive motor A. It is a generic code, so it means the same on every make.
Is it safe to drive with P0E8F?
Drive gently and only to a workshop. With P0E8F the car can go into limp mode (reduced power) to protect itself.
Will P0E8F fail an emissions test?
Yes, it can. P0E8F is emissions-related, so most inspection programs fail a car while it is stored or while the check engine light is on.
How hard is P0E8F to fix?
Difficulty: workshop only. A typical repair takes 0.5 to 6 hours of work. This is a job for a workshop.
Will P0E8F clear itself after the repair?
After the repair the car has to complete a drive cycle (a mix of city and highway driving) before the test runs again. Until then the readiness monitor shows "not ready", which can fail an inspection.