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B1C4C11 — Valve, front spoiler performance position – short circuit to ground
Valve, front spoiler performance position – short circuit to ground. 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 B1C4C11
How to read and clear B1C4C11
- 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 B1C4C11 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
| B1C4BF1 | Development code 6 |
| B1C4BF2 | Development code 5 |
| B1C4BF3 | Development code 4 |
| B1C4BF4 | Development code 3 |
| B1C4BF5 | Development code 2 |
| B1C4BF6 | Development code 1 |
| B1C4C12 | Valve, front spoiler performance position – short circuit to B+ |
| B1C4C13 | Valve, front spoiler Performance position – open circuit |
| B1C4C19 | Valve, front spoiler Performance position – current too high |
| B1C4D12 | Convertible-top rotation angle sensor – short circuit to B+ |
| B1C4D14 | Convertible top angle sensor - short circuit to ground or open circuit |
| B1C5112 | Microswitch, roof latch in holder position – short circuit to B+ |
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.