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P124F00 — A/C Pressure/Temperature Sensor 3, Pressure lower limit not reached

A/C Pressure/Temperature Sensor 3, Pressure lower limit not reached. 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 P124F00

Porsche Taycan

Porsche 911 (992)

Porsche Panamera (971, 2017–2023)

Porsche Panamera (972, 2024–)

Porsche Cayenne (9YA)

How to read and clear P124F00

  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 P124F00 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 Central Electrics

C125E11Button engine sound generation, Short circuit to ground
C125E29Button engine sound generation, Implausible signal
P123D00A/C Pressure/Temperature Sensor 1, Pressure lower limit not reached
P123E00A/C Pressure/Temperature Sensor 1, Pressure upper limit exceeded
P123F00A/C Pressure/Temperature Sensor 2, Pressure lower limit not reached
P124E00A/C Pressure/Temperature Sensor 2, Pressure upper limit exceeded
P125C00A/C Pressure/Temperature Sensor 3, Pressure upper limit exceeded
P1C5A00A/C pressure/temperature sensor 1, No signal
P1C5B00A/C pressure/temperature sensor 2, Implausible signal
P1C5C00Refrigerant circuit sensor on low pressure side (PT2) – faulty
P1C5D00A/C pressure/temperature sensor 2, No signal
P1C5E00Refrigerant circuit sensor on low pressure side (PT3) - signal implausible

All 1472 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.