P2DBF code meaning
Battery Charger B Coupler Lock Position Sensor Circuit High
What P2DBF means
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.
P2DBF at a glance
- Check engine lightUsually not
- Emissions testNot an emissions code
- Limp modeNot expected
- Repair difficultyMedium
- Typical labor0.5 to 3 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P2DBF
- Fast charging at inlet B not possible
- Charging system warning message
Common causes of P2DBF
- Most likelyOpen ground connection of the lock position sensor
- PossibleOpen signal line between sensor and control module
- Less likelySignal line shorted to a supply voltage
- Less likelyFaulty inlet assembly with integrated lock actuator
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Battery charger b coupler lock sensorCharge port lock actuatorWiring harness
What each part of P2DBF means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 2 | Generic code (second SAE range): it means the same on every make. |
| BF | The exact fault in that area. |
What to do next
- Note P2DBF and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P2DBF
What does P2DBF mean?
P2DBF means "Battery Charger B Coupler Lock Position Sensor Circuit High". P2DBF is set when the lock position signal of charger B's coupler stays above its permitted range. It is a generic code, so it means the same on every make.
Is it safe to drive with P2DBF?
P2DBF does not normally turn on the check engine light by itself. Watch for the symptoms above and have it checked soon.
Will P2DBF fail an emissions test?
P2DBF is not an emissions code, so on its own it usually does not fail an emissions test. Other stored codes or a lit check engine light still can.
How hard is P2DBF to fix?
Difficulty: medium. A typical repair takes 0.5 to 3 hours of work. This is a job for a workshop.
Will P2DBF clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.