Powertrain, generic (extended)

P2DB2 Drive Motor A Temperature Sensor C Circuit Range/Performance

Check engine lightOn
EmissionsRelevant
Drive cycleRequired
Limp modePossible

P2DB2 flags a sensor C reading that is electrically valid but disagrees with what the motor should show. With three probes a cold-soak comparison is the natural test: Mitsubishi checks its W-phase sensor (sensor 3, own code P3057) on the 2023 Outlander PHEV once per driving cycle after more than 90 minutes off, inverter switched off, and rejects it when it lies over 26 °C away from the U-phase reading for 0.8 s or longer; the V-phase check runs continuously instead. CARB asks for two-sided rationality checks where feasible. A UAES patent also compares a stator probe with coolant and power-switch temperatures after a long stop. No manufacturer documents P2DB2. Thermistor drift, a poor contact or a probe that has lost touch with its winding are typical causes.

Likely causes

Sensor C thermistor drifted from its resistance curve
Extra resistance at a corroded or worn terminal
Probe loose on its phase winding

Symptoms

  • Hybrid system warning or check engine light
  • Sensor C stands well apart from the other motor sensors after a cold start
  • No noticeable driving change in many cases

Repair estimate

DifficultyShop_onlyWorkshop job
Parts and labour€150–4,000
Time1–12 h

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

Parts involved

drive motor a temp sensor cwiring harnessinverter

Related codes

P2DB1P2DB3P2DB4P2DADP0A2B

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