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C10CA00 — Limp home active

Limp home active. 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 C10CA00

Porsche Taycan

Matrix Headlamp LeftMatrix Headlamp RightSteering Assist

Porsche 911 (992)

Beamer Module Matrix Headlamp LeftBeamer Module Matrix Headlamp RightSteering Assist

Porsche Panamera (971, 2017–2023)

Steering Assist

Porsche Panamera (972, 2024–)

Beamer Module Matrix Headlamp LeftBeamer Module Matrix Headlamp RightSteering Assist

Porsche Cayenne (9YA)

Beamer Module Matrix Headlamp LeftBeamer Module Matrix Headlamp RightSteering Assist

How to read and clear C10CA00

  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 C10CA00 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 Matrix Headlamp Left

B200046Control unit – function restriction
B200100Control unit – wrong software version
B200500Coding
B201200Coding
B2F0100Development code 1
B2F0200Development code 2
C119F00Headlight - country variant implausible
C11A098Control module, Temperature too high
C11A0F0Temperature sensor (internal) - electrical fault
U041500Control unit for brake electronics (PSM) – signal implausible
U043100Data bus - fault value received
U101100Supply voltage – too low

All 26 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.