P0DF4Generator Inverter Temperature Sensor B Circuit Range/Performance
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- Needs a drive cycle to confirm a fix
- How the car detects it
- P0DF4 reports that temperature sensor B of the generator inverter delivers an electrically valid signal whose value does not fit the other sensors. Mitsubishi documents the check for the Outlander PHEV: a single time in each drive cycle, following at least 600 s of standstill and with the IGBTs switched off, the V-phase high-side sensor may not differ by more than 47 °C from the other two phase sensors for 0.1 s; otherwise P0DF4-00 is stored and the power drive unit is replaced. Volvo lists ECM P0DF400 for 2022-on T8 plug-in hybrids and warns it can be misdetected, showing Propulsion System Service Required; for builds from week 202147 to 202446 ECM software 3.4.4 cures it. Out-of-range signals are P0DF5 and P0DF6.
- What you may notice
- Message such as Propulsion System Service Required
- Engine warning light on
- Turtle symbol and reduced power in some cases
- Likely causes
- LikelyControl software misdetection (Volvo T8, ECM update available)
- PossibleSensor in the power module drifted or stuck at one value
- PossibleInternal fault in the power drive unit (Mitsubishi replaces the unit)
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €80 – €4,500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.