Home › Fault codes › C1251F9

C1251F9 — PDCC system restriction

PDCC system restriction. 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 C1251F9

Porsche Taycan

Chassis Control

Porsche 911 (992)

Chassis Control

Porsche Panamera (971, 2017–2023)

Chassis Control

Porsche Panamera (972, 2024–)

Chassis Control

Porsche Cayenne (9YA)

Chassis Control

How to read and clear C1251F9

  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 C1251F9 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 Chassis Control

C1251F2PDCC system restriction
C1251F3PDCC system restriction
C1251F4PDCC system restriction
C1251F5PDCC system restriction
C1251F6PDCC system restriction
C1251F7PDCC system restriction
C1251FAPDCC system restriction
C1251FBPDCC system restriction
C1251FCPDCC system restriction
C1251FDPDCC system restriction
C1251FEPDCC system restriction
C12964BSway Stabilization Control Module, excessive temperature

All 407 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.