Powertrain, generic · Hybrid propulsion

P0C6A Generator Position Sensor Circuit B Range/Performance

Check engine lightOn
EmissionsRelevant
Drive cycleNot required
Limp modePossible

P0C6A concerns circuit B of the generator resolver, the cosine side at Mitsubishi: its signal stays inside the electrical limits but does not agree with what the controller expects. Because sine and cosine together describe one angle, a cosine trace with the wrong amplitude or a drifting centre shows up as a mismatch against circuit A, even though no line is shorted. Possible reasons are a loose or twisted sensor stator, a winding with partial damage, or noise picked up from nearby phase leads. No manufacturer documents P0C6A publicly; Mitsubishi's comparable window check on the 2023 Outlander PHEV (2.1 to 2.9 V, 0.28 s) is stored as P0A4C. Hard low or high readings on this circuit belong to P0C6B and P0C6C; the circuit A version is P0C65.

Likely causes

Loose or twisted resolver stator changing the cosine amplitude
Partially shorted cosine winding with weakened output
Noise from phase leads due to damaged shielding or poor routing
High contact resistance in the circuit B connector

Symptoms

  • Hybrid warning lamp
  • Generator used only partly or not at all
  • Unusual noise or vibration from the transaxle under load

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 bwiring harnesshybrid control module

Related codes

P0C69P0C6BP0C6CP0C65P0A4C

References: mitsubishitechinfo.com, law.cornell.edu, en.wikipedia.org.