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B195901 — Front defrost flap air outlet temperature sensor, Electrical error

Front defrost flap air outlet temperature sensor, Electrical error. 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 B195901

Porsche Taycan

Porsche 911 (992)

Porsche Panamera (971, 2017–2023)

Porsche Panamera (972, 2024–)

Porsche Cayenne (9YA)

How to read and clear B195901

  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 B195901 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 Air Conditioning

B194EF1Steuergerät für Luftzusatzheizung 2, unplausible Botschaft
B194F04Rear air-conditioning system regulator – defective
B194FF0Rear air-conditioning system regulator – no communication
B194FF1Rear air conditioning system regulator – message implausible
B195216Supply voltage for potentiometer (5 V) - above limit value
B195217Supply voltage for potentiometer (5 V) - below limit value
B195F11Rear sunlight photo sensor, Short circuit to Ground (GND)
B195F15Rear sunlight photo sensor, Open circuit/short circuit to B+
B196011Rear sunlight photo sensor 2, Short circuit to Ground (GND)
B196015Rear sunlight photo sensor 2, Open circuit/short circuit to B+
B196116Supply voltage for sensor actuators (12V) - A/C, above limit value
B196117Supply voltage for sensor actuators (12V) - A/C, below limit value

All 418 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.