Powertrain, generic (extended)

P2E9D Charge Port Door B Unlock Control Circuit

Check engine lightUsually off
EmissionsNot relevant
Drive cycleNot required
Limp modeNo

P2E9D concerns the output that releases or drives charge flap B, not its sensors. Depending on the design this is a latch actuator or a small motor: Audi's e-tron family uses lock actuators F496 and F497 for its high-voltage charging flaps on the two sides, and Porsche's Taycan a servo motor per charge port door. No manufacturer documents P2E9D publicly. GM's 2011 Volt shows how the A version P0CD1 is judged from the fault flag of the driver stage: a short to ground while the release is commanded (3 of 4 samples), a short to 12 V or an open circuit while it is not (64 of 80 samples, 50 ms each), Type B. Split low and high codes are P2E9F and P2EA0, the movement check P2E9E. The driver finds flap B shut and has to use the other side or the emergency release.

Likely causes

Flap B actuator or motor winding open or shorted
Damaged control wire or connector to the flap B actuator
Faulty output stage in the control unit

Symptoms

  • Flap B does not unlock or move at all
  • Charging only possible on the other side
  • Charging flap warning in the cluster

Repair estimate

DifficultyMediumWorkshop job
Parts and labour€100–600
Time0.5–2.5 h

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

Parts involved

charge port door b unlock actuatorwiring harnesscontrol module

Related codes

P2E9EP2E9FP2EA0P2E98P0CD1

References: gsi.ext.gm.com, static.nhtsa.gov, static.nhtsa.gov.