Powertrain, generic

P0E03 Generator Phase U Current Sensor Circuit High

Check engine lightOn
EmissionsRelevant
Drive cycleNot required
Limp modePossible

P0E03 is the upper-limit fault of the current sensor that measures phase U of the generator inverter: its signal is pinned near the supply rail. In the 2023 Outlander PHEV, Mitsubishi lets the generator control unit set P0E03-00 when the U-phase voltage climbs to at least 4.5 V and remains there for 0.2 s with the unit supplied by at least 8 V; for the 2018 model the code list blames a short to the supply or a shorted current sensor 1. A reading this high would mean a phase current far beyond anything the generator delivers, so the controller treats it as an electrical defect and not as overcurrent; genuine overcurrent has codes of its own, at Ford for instance P0A71. On the 2023 model the MIL is switched on as well. Low signal: P0E02, zero-point fault: P0E01.

Likely causes

Sensor signal shorted to its supply voltage
Current sensor in the power drive unit failed with high output
Lost sensor ground or reference inside the inverter

Symptoms

  • MIL and hybrid system warning light on
  • Generator switched off or strongly limited
  • Engine runs more often without charging the battery

Repair estimate

DifficultyShop_onlyWorkshop job
Parts and labour€150–4,500
Time1–5 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

generator phase u current sensorwiring harnesshybrid control module

Related codes

P0E00P0E01P0E02P0E07P0E0BP0A71

References: mitsubishitechinfo.com, mitsubishitechinfo.com, mitsubishitechinfo.com, fordservicecontent.com.