Powertrain, generic

P0E92 Drive Motor B Inverter Voltage Sensor B Circuit Range/Performance

Check engine lightOn
EmissionsRelevant
Drive cycleRequired
Limp modePossible

P0E92 is stored when voltage sensor B of the drive motor B inverter gives a reading inside its electrical range that does not fit the other voltage values of the high-voltage system. No manufacturer documents P0E92 publicly. The closest published test is Mitsubishi's plausibility check P0DA4, written for the first voltage channel of the rear motor in the 2023 Outlander PHEV: with the boost converter off, the rear inverter voltage is compared with capacitor 1 and both capacitor 2 channels of the front unit, and a difference of 100 V or more to each of them for 0.2 s counts; the hints name the rear motor unit, battery management and the power drive unit. For drive motor A the same fault on sensor B is P0E8D. A drifting measurement or a wrong reference elsewhere are both possible, so all channels should be compared.

Likely causes

Voltage channel B of the motor B inverter drifts
Internal fault of the motor B inverter or motor unit
Wrong comparison value from battery management or the front power electronics

Symptoms

  • MIL and hybrid or EV system warning
  • Second drive motor switched off, reduced acceleration

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 b inverter voltage sensor bdrive motor b inverterhybrid control module

Related codes

P0E91P0E93P0E94P0DA4P0E8D

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