OBD-II code · Powertrain (generic)
P0DF4 Generator Inverter Temperature Sensor B Circuit Range/Performance
The ECM detects a range/performance fault on the generator inverter temperature sensor b circuit. Reading cannot be used reliably for control.
Is it safe to drive with P0DF4?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelySensor characteristic drifted
- PossibleSensor mounting displaced
- Less likelySensor element aged beyond calibration window
Repair at a glance
- Difficulty
- Easy
- DIY friendly
- Best left to a mechanic
- Typical labour
- 0.5–3 h
- Emissions test
- Usually unaffected
- Parts involved
- Generator Inverter Temp Sensor B, Wiring Harness, Hybrid Control Module
Related codes
- P0DF7Generator Inverter Temperature Sensor C Circuit Range/Performance
- P0DF1Generator Inverter Temperature Sensor B Circuit Intermittent/Erratic
- P0DF2Generator Inverter Temperature Sensor C Circuit
- P0DF3Generator Inverter Temperature Sensor C Circuit Intermittent/Erratic
- P0DF5Generator Inverter Temperature Sensor B Circuit Low
- P0DF6Generator Inverter Temperature Sensor B Circuit High
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.