P0DF8 tells that temperature sensor C in the generator inverter delivers a voltage below its valid range. Mitsubishi uses the code in the Outlander PHEV for the W-phase high-side IGBT sensor: a reading at or under 1.25 V for 0.08 s, with at least 8 V GCU supply, stores P0DF8-00, and the check runs all the time. Physical causes are a short between signal and ground or a breakdown inside the module, for instance after coolant has reached the electronics. The value suggests a far too hot switch, so the controller derates the generator to stay on the safe side. The sensor cannot be replaced on its own, which is why Mitsubishi lists the power drive unit. The same fault on sensor B is P0DF5, the high case on this sensor P0DF9.
High severity. Can I keep driving?If the car still runs, drive as little as possible and go to a specialized repair shop. Do not touch the orange cables: they carry high voltage.
Symptoms
- Hybrid or engine warning light on
- Generator power limited
- Implausibly high inverter temperature in live data
Most likely causes
- Signal line of sensor C shorted to ground
- Shorted sensor or internal fault of the power drive unit
- Coolant or moisture inside the inverter electronics
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 P0DF8 means
- P: Powertrain: engine and transmission
- 0: Generic code: same on every make
- D: Subsystem depends on the code range
- F8: Specific fault in that system
Frequently asked questions
Can I keep driving with code P0DF8?
If the car still runs, drive as little as possible and go to a specialized repair shop. Do not touch the orange cables: they carry high voltage.
What causes code P0DF8?
The most common causes are: signal line of sensor C shorted to ground; shorted sensor or internal fault of the power drive unit; coolant or moisture inside the inverter electronics.
Related codes
- P0DF9Generator Inverter Temperature Sensor C Circuit High
- P0DF7Generator Inverter Temperature Sensor C Circuit Range/Performance
- P0DF2Generator Inverter Temperature Sensor C Circuit
- P0DF3Generator Inverter Temperature Sensor C Circuit Intermittent/Erratic
- P0DF5Generator Inverter Temperature Sensor B Circuit Low
- P0BCEGenerator Inverter Temperature Sensor A Circuit Low
- P0A3EGenerator Inverter Over Temperature
Sources
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.