Powertrain, generic (extended)

P2DBF Battery Charger B Coupler Lock Position Sensor Circuit High

Check engine lightUsually off
EmissionsNot relevant
Drive cycleNot required
Limp modeNo

P2DBF is set when the lock position signal of charger B's coupler stays above its permitted range. No manufacturer documents P2DBF publicly. Mitsubishi's procedure for the A-side code P0DA1 on the 2023 Outlander PHEV points to the usual culprits of a high reading: the sensor's ground pin at the lock actuator connector must show continuity to body ground (2 Ω or less), its supply pin must carry battery voltage, and the signal line to the PHEV-ECU is checked for an open; only then are the inlet assembly and the ECU suspected. GM's patent US8936482B2 explains why this matters: without a confirmed lock, fast charging is not allowed. The low counterpart is P2DBE. With an unbelievable lock state, inlet B is not released for charging.

Likely causes

Open ground connection of the lock position sensor
Open signal line between sensor and control module
Signal line shorted to a supply voltage
Faulty inlet assembly with integrated lock actuator

Symptoms

  • Fast charging at inlet B not possible
  • Charging system warning message

Repair estimate

DifficultyMediumWorkshop job
Parts and labour€60–1,000
Time0.5–3 h

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

Parts involved

battery charger b coupler lock sensorcharge port lock actuatorwiring harness

Related codes

P2DBCP2DBDP2DBEP2DC0P0DA1

References: mitsubishitechinfo.com, patents.google.com.