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.
Medium severity. Can I keep driving?If the battery warning light comes on, you could get stranded. Turn off electrical accessories and go straight to a repair shop.
Symptoms
- Hybrid system warning light
- Generator use restricted, less charging while driving
- Occasional roughness when the engine starts or stops in hybrid mode
Most 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
What to check, in order
Start with the simplest. You can tick off each step.
Good to know
- It can trigger limp mode.
- It affects emissions.
What each character of P0C65 means
- P: Powertrain: engine and transmission
- 0: Generic code: same on every make
- C: Subsystem depends on the code range
- 65: Specific fault in that system
Frequently asked questions
Can I keep driving with code P0C65?
If the battery warning light comes on, you could get stranded. Turn off electrical accessories and go straight to a repair shop.
What causes code P0C65?
The most common causes are: 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.
Related codes
- P0C64Generator Position Sensor Circuit A
- P0C66Generator Position Sensor Circuit A Low
- P0C67Generator Position Sensor Circuit A High
- P0C6AGenerator Position Sensor Circuit B Range/Performance
- P0A4CGenerator Position Sensor Circuit Range/Performance
Sources
- mitsubishitechinfo.com: N503240240000800USA
- law.cornell.edu: 13 CCR 1968.2
- static.nhtsa.gov: MC 10161001 9999
Values and procedures vary by manufacturer. If it affects brakes, steering, fuel or high voltage, see a professional. Updated: 2026-11-04. How we build these pages.