P0E01 code meaning
Generator Phase U Current Sensor Circuit Range/Performance
Powertrain system Generic code P0Exx codes Check engine light
What P0E01 means
P0E01 flags an implausible zero point of the U-phase current sensor inside the generator inverter. Sensors of this kind put out a voltage near the middle of their span while no current flows, so the test is only run when the machine cannot carry current. Mitsubishi documents the code for the Outlander PHEV: on the 2023 model the generator control unit evaluates the U-phase signal with the IGBTs switched off, the generator turning below 20 rpm and at least 8 V supply, and stores P0E01-00 if the value leaves the 2.3 to 2.7 V band for 0.32 s; MIL and hybrid warning light come on. The 2018 code chart calls the same code an offset fault of current sensor 1. A shifted zero distorts generator torque control. Hard signal faults of this sensor appear as P0E02 or P0E03.
P0E01 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyWorkshop only
- Typical labor1 to 5 hours
- Clears after repairAfter a drive cycle
Symptoms of P0E01
- MIL and hybrid system warning light on
- Generator output reduced, less charging while driving
- Code often returns after clearing at the next standstill check
Common causes of P0E01
- Most likelyZero point of the phase U current sensor drifted (sensor inside the power drive unit)
- PossibleUnstable sensor supply or reference voltage inside the inverter
- Less likelyEvaluation circuit of the generator control unit faulty
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Generator phase u current sensorWiring harnessHybrid control module
What each part of P0E01 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 01 | The exact fault in that area. |
What to do next
- Note P0E01 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 P0E01
What does P0E01 mean?
P0E01 means "Generator Phase U Current Sensor Circuit Range/Performance". P0E01 flags an implausible zero point of the U-phase current sensor inside the generator inverter. It is a generic code, so it means the same on every make.
Is it safe to drive with P0E01?
Drive gently and only to a workshop. With P0E01 the car can go into limp mode (reduced power) to protect itself.
Will P0E01 fail an emissions test?
Yes, it can. P0E01 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 P0E01 to fix?
Difficulty: workshop only. A typical repair takes 1 to 5 hours of work. This is a job for a workshop.
Will P0E01 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.