Powertrain, generic (extended)

P2DBC Battery Charger B Coupler Lock Position Sensor Circuit

Check engine lightUsually off
EmissionsNot relevant
Drive cycleNot required
Limp modeNo

P2DBC is the general circuit fault of the lock position sensor at charger B's coupler, the feedback telling the vehicle whether the pin that holds the charging plug in the inlet has moved out or back in. B marks a second inlet or charging path. No manufacturer documents P2DBC publicly. GM's patent US8936482B2 shows how such feedback can work: an angle sensor on the actuator motor shaft yields the pin travel, and fast charging is withheld if the lock cannot be confirmed. On the A side Ford stores P0D9E:00 in the SOBDM of 2021–2023 Mach-E, F-150 Lightning and e-Transit after the DC plug was pulled without pressing the release button, which damages the pin (TSB 23-2014); only the lock actuator is replaced. Specific fault types follow in P2DBD to P2DC0.

Likely causes

Open or shorted wire between lock actuator and control module
Lock pin broken after the plug was pulled while still latched
Corroded or loose connector at the lock actuator
Faulty sensor input in the control module

Symptoms

  • DC fast charging not possible at inlet B
  • Charger service warning in the instrument cluster

Repair estimate

DifficultyMediumWorkshop job
Parts and labour€60–900
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

P2DBDP2DBEP2DBFP2DC0P0D9E

References: patents.google.com, static.nhtsa.gov.