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B1C1729 — Pressure sensor for front spoiler Performance position – implausible signal
Pressure sensor for front spoiler Performance position – 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 B1C1729
How to read and clear B1C1729
- Plug a standard ENET (Ethernet-to-OBD) cable into your Porsche's OBD port and your Mac or Windows PC.
- Open STEUER14, pick your car and run a fault scan: every control unit is read, and B1C1729 shows with its status, its full description and the freeze frame when the unit stores one.
- 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 readingOther codes of the Aerodynamics Control Unit
| B1C1519 | Valve, close convertible top compartment lid – current too high |
| B1C1611 | Pressure sensor, front spoiler Speed position – short circuit to ground |
| B1C1612 | Pressure sensor, front spoiler Speed position – short circuit to B+ |
| B1C1629 | Pressure sensor, front spoiler Position Speed, implausible signal |
| B1C1711 | Pressure sensor, front spoiler, performance position – short circuit to ground |
| B1C1712 | Pressure sensor, front spoiler, performance position – short circuit to B+ |
| B1C1986 | Pressure sensors for front spoiler – signal implausible |
| B1C1AF0 | Front spoiler, PSM forced activation |
| B1C1AF1 | Front spoiler – process implausible |
| B1C1AF2 | Front spoiler, performance position – position implausible |
| B1C1AF3 | Front spoiler, speed position – position implausible |
| B1C1AF4 | Front spoiler – timeout on activation |
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.