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P31CF00 — Charging-socket lid A, locking detection, electrical fault

Charging-socket lid A, locking detection, electrical fault. The Taycan, Panamera (971), Panamera (972) and Cayenne report this code; below is which control unit sets it on each model and how to read and clear it.

Which models and control units set P31CF00

Porsche Taycan

Porsche Panamera (971, 2017–2023)

Porsche Panamera (972, 2024–)

Porsche Cayenne (9YA)

How to read and clear P31CF00

  1. Plug a standard ENET (Ethernet-to-OBD) cable into your Porsche's OBD port and your Mac or Windows PC.
  2. Open STEUER14, pick your car and run a fault scan: every control unit is read, and P31CF00 shows with its status, its full description and the freeze frame when the unit stores one.
  3. Fix the cause first, then clear the fault memory and scan again to check it stays away. Reading and clearing fault codes is free on every control unit.

More about fault memory in the manual →

Download STEUER14 — free fault reading

Other codes of the On-Board Charger 2

P31C800Combination charging socket, AC electrical system supply – open circuit
P31C900LED module charging socket A, Electrical error
P31CB00Immediate upload button, sticks closed
P31CC00Button for loading profile, sticks closed
P31CD00AC charge port door locking activation, electrical fault
P31CE00Combination charge port door locking activation, electrical fault
P31D100Charging socket - temperature sensor, electrical fault
P31D200Charging socket - overtemperature
P31D500Charging socket AC, plug lock detection - electrical fault
P31D600Combination charging socket plug lock detection - electrical fault
P31D700Charging socket AC, communication connection - short circuit to B+
P31D800Combination charging socket, communication connection - short circuit to B+

All 110 codes of this control unit →

Fault names come from the manufacturer's diagnostic data. STEUER14 is independent and not affiliated with Porsche AG. A code tells you what a control unit detected, not always which part failed — check wiring, supply voltage and related codes before replacing parts. STEUER14 shows each fault's full description, status and freeze frame on the car.