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C10E401 — Pivoting trailer hitch - electrical fault

Pivoting trailer hitch - 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 C10E401

Porsche Taycan

Trailer Function

Porsche Panamera (971, 2017–2023)

AAG (Anhaenger)

Porsche Panamera (972, 2024–)

AAG (Anhaenger)

Porsche Cayenne (9YA)

AAG (Anhaenger)

How to read and clear C10E401

  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 C10E401 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 Trailer Function

B2F0200Development code 2
B2F0300Development code 3
B2F0400Development code 4
B2F0500Development code 5
C10DB11Lamp for tail light on trailer - short circuit to ground
C10DB15Lamp for tail light on trailer - open circuit/short circuit to B+
C10E407Pivoting trailer hitch - mechanical fault
C10E412Pivoting trailer hitch - short circuit to B+
C10E413Pivoting trailer hitch - open circuit
C10E429Pivoting trailer hitch - implausible signal
C10E454Pivoting trailer hitch - no basic setting
C10E511Trailer hitch switch - short circuit to ground

All 112 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.