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U13FD00 — 48-volt system, locked

48-volt system, locked. The Taycan, 911 (992), 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 U13FD00

Porsche Taycan

Porsche 911 (992)

Porsche Panamera (971, 2017–2023)

Porsche Panamera (972, 2024–)

Porsche Cayenne (9YA)

How to read and clear U13FD00

  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 U13FD00 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 Gateway

U13BF00Brake electronics control module, no communication at the second bus connection
U13C000Airbag sensor, Private CAN bus - no communication
U13C100Lane Change Assist control unit (master - left), Private CAN bus - no communication
U13C200Lane Change Assist control unit (slave - right), Private CAN bus - no communication
U13C300Control unit for rear-axle steering 2 - no communication
U13EA00High-voltage system, locked
U13FE00Inverter for electrical outlet, Locking after crash active
U140500Terminal 15 signal line – signal implausible
U140600Closed-circuit current too high
U140B00Energy management active
U141100Battery terminal recognition, Open circuit
U141D00Right exterior rear view mirror, no communication

All 374 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.