Powertrain, generic · Hybrid propulsion

P0DF0 Generator Inverter Temperature Sensor B Circuit

Check engine lightOn

EmissionsRelevant

Drive cycleNot required

Limp modePossible

P0DF0 is the catch-all circuit code for temperature sensor B in the generator inverter, the power stage that drives the generator of a two-machine hybrid. The controller sets it when the sensor line is electrically faulty but the fault is not sorted into low, high or erratic. No manufacturer documents P0DF0 publicly. Mitsubishi fits one thermistor per IGBT in the generator unit of the Outlander PHEV and reports the second high-side sensor (V phase) only through P0DF4 to P0DF6, never through this general code; Ford likewise names only open and short checks for its generator inverter sensor. CARB requires every input that feeds inverter thermal management to be checked for circuit faults. Without a valid value the controller has to assume the worst and usually limits generator output.

Likely causes

Loose, corroded or damaged connector at the inverter or power unit

Thermistor or its signal path inside the inverter module faulty

Faulty evaluation input in the generator control unit

Symptoms

Hybrid or engine warning light on
Reduced generator output, weaker charging while driving
Hybrid system may switch to a restricted mode

Repair estimate

DifficultyShop_onlyWorkshop job

Parts and labour€100–4,000

Time0.5–4 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

generator inverter temp sensor bwiring harnesshybrid control module

References: law.cornell.edu, mitsubishitechinfo.com, fordservicecontent.com.