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B127CF2 — Front environmental camera, optical malfunction

Front environmental camera, optical malfunction. 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 B127CF2

Porsche Taycan

Porsche 911 (992)

Porsche Panamera (972, 2024–)

Porsche Cayenne (9YA)

How to read and clear B127CF2

  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 B127CF2 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 Front Assist Camera

B11CE11Windshield heater for front sensor system, Short circuit to ground
B11CE15Windshield heater for front sensor system, Open circuit/short circuit to B+
B127C04Front camera faulty
B127C4BFront camera, temperature - above limit value
B127C54Front camera, calibration
B127CF0Front camera, calibration
B127D04Reversing camera faulty
B127D4BReversing camera, temperature - above limit value
B127D54Reversing camera, calibration
B127DF0Reversing camera, calibration
B127DF2Rear environmental camera, optical malfunction
B127E04Side camera (left) faulty

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.