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B1C1E04 — Position sensor, left cooling-air flaps – defective
Position sensor, left cooling-air flaps – defective. 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 B1C1E04
How to read and clear B1C1E04
- 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 B1C1E04 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
| B1C1C01 | Supply voltage to angle sensor, convertible top – electrical fault |
| B1C1D11 | Valve, front spoiler, speed position – short circuit to ground |
| B1C1D12 | Valve, front spoiler, speed position – short circuit to B+ |
| B1C1D13 | Valve, front spoiler speed position – open circuit |
| B1C1D19 | Valve, front spoiler Speed position – current too high |
| B1C1DF0 | Valves, front spoiler – malfunction |
| B1C1E12 | Position sensor, left cooling-air flaps – short circuit to B+ |
| B1C1E14 | Position sensor, left cooling-air flaps – short circuit to ground or open circuit |
| B1C1F04 | Position sensor, right cooling-air flaps – defective |
| B1C1F12 | Position sensor, right cooling-air flaps – short circuit to B+ |
| B1C1F14 | Position sensor, right cooling-air flaps – short circuit to ground or open circuit |
| B1C2111 | Development code 11 |
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.