Powertrain, generic · Hybrid propulsion

P0C65 Generator Position Sensor Circuit A Range/Performance

Check engine lightOn
EmissionsRelevant
Drive cycleNot required
Limp modePossible

P0C65 flags circuit A of the generator resolver as electrically present but not believable. The trace stays between the hard low and high limits, yet its amplitude, centre voltage or relation to the second winding no longer fits the rotor angle the controller expects, for example after the sensor stator has shifted or when the phase cables couple noise into it. No manufacturer documents P0C65 publicly. Mitsubishi runs an analogous window test on the 2023 Outlander PHEV: a sine or cosine level outside 2.1 to 2.9 V for 0.28 s counts as a plausibility fault, but it is filed under P0A4C for the whole sensor. P0C66 and P0C67 cover hard low and high readings on the same circuit. Typical consequences are a hybrid warning and limited use of the generator.

Likely causes

Resolver stator loose or shifted, for instance after work on the generator or transaxle
Interference from the phase cables because of a misrouted or damaged resolver harness
Partially damaged winding that weakens the circuit A signal
Generator control software that misjudges a sound signal

Symptoms

  • Hybrid system warning light
  • Generator use restricted, less charging while driving
  • Occasional roughness when the engine starts or stops in hybrid mode

Repair estimate

DifficultyShop_onlyWorkshop job
Parts and labour€100–5,000
Time1–10 h

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

Parts involved

generator position sensor awiring harnesshybrid control module

Related codes

P0C64P0C66P0C67P0C6AP0A4C

References: mitsubishitechinfo.com, law.cornell.edu, static.nhtsa.gov.