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P1BCE00 — External charging infrastructure – fault in line conductor L1 and L2

External charging infrastructure – fault in line conductor L1 and L2. 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 P1BCE00

Porsche Taycan

Porsche Panamera (971, 2017–2023)

Porsche Panamera (972, 2024–)

Porsche Cayenne (9YA)

How to read and clear P1BCE00

  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 P1BCE00 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 →

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Other codes of the On-Board Charger 2

P16F000High-voltage charger, line conductor L3 – undervoltage
P16F100High-voltage charger, line conductor L3 – overvoltage
P1A2400Fast battery charge (DC), CHAdeMO connector – implausible signal
P1A3500Quick battery charging (DC), Malfunction in charging station
P1BCC00External charging infrastructure – fault in line conductor L2 and L3
P1BCD00External charging infrastructure – fault in line conductor L1 and L3
P31C500Reduced performance due to excessive coolant temperature
P31C600AC input voltage – electrical system fault
P31C700Charging socket AC, AC electrical system supply – open circuit
P31C800Combination charging socket, AC electrical system supply – open circuit
P31C900LED module charging socket A, Electrical error
P31CB00Immediate upload button, sticks closed

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.