P2DC0Battery Charger B Coupler Lock Position Sensor Circuit Intermittent/Erratic
- Generic OBD-II code · Powertrain
- How the car detects it
- P2DC0 describes lock feedback at the charger B inlet that jumps or drops out for short moments instead of failing steadily. Because the lock state is a release condition for charging, a flickering signal can end a session or stop it from starting even though the plug is held properly. No manufacturer documents P2DC0 publicly. GM's patent US8936482B2 names the consequence of an unconfirmed lock: fast charging is prohibited. As a model on the A side, Mercedes traced a lock position sensor fault (P0D9F00) on the smart electric drive's 22 kW charger to loose low-voltage plugs at that charger (LI54.10-P-067823), with complaints tied to cold or warm components. Worn terminals, a chafed wire at the inlet and water ingress are typical. Steady faults are P2DBC to P2DBF.
- What you may notice
- Charging at inlet B stops or fails to start sporadically
- Fault appears only at certain temperatures
- Likely causes
- LikelyLoose low-voltage plug at the lock actuator or charger
- PossibleSensor wire chafed near the charging inlet
- PossibleWater ingress into the inlet or actuator connector
- Repair
- Medium · Usually a job for a workshop.Typical cost: €50 – €900
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.