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C12D5FC — Driver assistance systems control module, Shut-off due to excess voltage

Driver assistance systems control module, Shut-off due to excess voltage. The Taycan, 911 (992), 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 C12D5FC

Porsche Taycan

Front Assist Camera

Porsche 911 (992)

ZFAS (Zentrales Fahrer Assistenz System)

Porsche Panamera (972, 2024–)

ZFAS (Zentrales Fahrer Assistenz System)

Porsche Cayenne (9YA)

ZFAS (Zentrales Fahrer Assistenz System)

How to read and clear C12D5FC

  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 C12D5FC 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 Front Assist Camera

C12D5F6Driver assistance systems control module, Supply voltage electrical malfunction
C12D5F7Driver assistance systems control module, Internal supply voltage error
C12D5F8Driver assistance systems control module, Signal not initialized
C12D5F9Driver assistance systems control module, Park assist short circuit to ground
C12D5FADriver assistance systems control module, Image processing processor not reacting
C12D5FBDriver assistance systems control module, Internal communication error
C12D6F0remote controlled parking, Device switched during parking process
C12D6F1remote controlled parking, Command implausible
C12D6F2remote controlled parking, Sign-of-life signal, sudden value change
C12D6F3remote controlled parking, Sign-of-life signal, value not incremented
C12D6F4remote controlled parking, Request, coordinate implausible
C12D6F5remote controlled parking, Request implausible

All 336 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.