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B1C0D29 — Position sensor for wind deflector retracted – implausible signal

Position sensor for wind deflector retracted – implausible signal. 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 B1C0D29

Porsche Taycan

Porsche 911 (992)

Porsche Panamera (971, 2017–2023)

Porsche Panamera (972, 2024–)

Porsche Cayenne (9YA)

How to read and clear B1C0D29

  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 B1C0D29 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 Aerodynamics Control Unit

B1C0BFAConvertible top process – malfunction
B1C0C11Position sensor for wind deflector extended – short circuit to ground or open circuit
B1C0C12Position sensor, wind deflector extended – short circuit to B+
B1C0C29Position sensor for wind deflector extended – implausible signal
B1C0D11Position sensor for wind deflector retracted – short circuit to ground or open circuit
B1C0D12Position sensor, wind deflector retracted – short circuit to B+
B1C0E11Hydraulic pump, convertible top – short circuit to ground
B1C0E12Hydraulic pump, convertible top – short circuit to B+
B1C0E13Hydraulic pump, convertible-top cover – open circuit
B1C0E19Hydraulic pump, convertible top – current too high
B1C0EF0Hydraulic pump, convertible top – thermal protection active
B1C0F01Terminal 31-2 – faulty

All 305 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.