Powertrain, generic

P0E8E Drive Motor A Inverter Voltage Sensor B Circuit Low

Check engine lightOn
EmissionsRelevant
Drive cycleRequired
Limp modePossible

P0E8E means the output of inverter voltage sensor B for drive motor A has fallen to the bottom end of its scale. On the 2023 Outlander PHEV Mitsubishi assigns it to the main measuring channel of capacitor 2 (V2M) in the power drive unit and sets it when that signal stays at no more than 0.45 V for 0.16 s, provided the unit has at least 8 V supply; monitoring runs continuously. Electrically this matches a short to ground, a broken signal path or a sensing circuit that has died, because the high-voltage bus itself would rarely read near zero while the system is active. The same channel reading high is P0E8F, while capacitor 1 on sensor A uses P0D2F for its low case. As the controller cannot trust the bus voltage, electric drive is limited or switched off and the MIL comes on.

Likely causes

Measuring circuit for capacitor 2 inside the power drive unit failed
Signal line shorted to ground or open
No high voltage on the bus because of a blown fuse or open contactor path

Symptoms

  • MIL and hybrid system warning
  • Vehicle not ready to drive or only engine power available

Repair estimate

DifficultyShop_onlyWorkshop job
Parts and labour€100–4,000
Time0.5–6 h

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

Parts involved

drive motor a inverter voltage sensor bwiring harnesshybrid control module

Related codes

P0E8FP0E8CP0E8DP0D2F

References: mitsubishitechinfo.com, law.cornell.edu.