P2E9FCharge Port Door B Unlock Control Circuit Low
- Generic OBD-II code · Powertrain
- How the car detects it
- P2E9F is the low-voltage form of the flap B release output fault: the driver stage measures its control line close to 0 V where a higher level is expected. A control wire chafed to body ground or an actuator winding that has shorted are the usual culprits, and a protective fuse or driver shutdown can follow. No manufacturer documents P2E9F publicly. GM's Volt folds this case into the combined A code P0CD1, judging a short to ground only while the release is commanded. A GM patent shows what the line feeds: a briefly energised actuator retracts a post so a spring can push the flap open, after which power is removed. Porsche's Taycan bulletin 186/24 has technicians check the lines and plugs of the flap servo motors before replacing modules. High-level faults are P2EA0, the function test P2E9E. Flap B then stays shut.
- What you may notice
- Flap B does not release on any request
- Blown fuse for the flap circuit possible
- Likely causes
- LikelyControl wire of the flap B actuator shorted to ground
- PossibleShorted winding in the flap B actuator or motor
- RareWater in the actuator connector
- Repair
- Medium · Usually a job for a workshop.Typical cost: €100 – €600
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.