Powertrain, generic · Hybrid propulsion

P0DF9 Generator Inverter Temperature Sensor C Circuit High

Check engine lightOn

EmissionsRelevant

Drive cycleNot required

Limp modePossible

P0DF9 is stored when the C temperature sensor of the generator inverter reports a voltage at or beyond the upper end of its window. For the Outlander PHEV Mitsubishi defines the limit as 3.75 V for 0.08 s on the W-phase high-side IGBT sensor, monitored continuously whenever the GCU has at least 8 V. An open line, a backed-out terminal in the inverter connector or a broken sensor element are the usual explanations. Unlike a real cold start, the reading does not climb as the generator works, which separates the fault from a true low temperature. Generator power may be held back until the value is valid again, and Mitsubishi fixes it by replacing the complete power drive unit. Too low a voltage on the same sensor is P0DF8; the B-sensor counterpart is P0DF6.

Likely causes

Open signal line of sensor C

Terminal pushed back in the inverter connector

Broken sensor element inside the power drive unit

Symptoms

Engine or hybrid warning light on
Inverter temperature stuck at a very low value
Generator output held back

Repair estimate

DifficultyShop_onlyWorkshop job

Parts and labour€100–4,500

Time0.5–5 h

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

Parts involved

generator inverter temp sensor cwiring harnesshybrid control module

Related codes

P0DF8 P0DF7 P0DF2 P0DF3 P0DF6 P0BCF

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