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B1C1312 — Supply voltage for Hall sensors, rear spoiler – short circuit to B+
Supply voltage for Hall sensors, rear spoiler – short circuit to B+. 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 B1C1312
How to read and clear B1C1312
- 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 B1C1312 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
| B1C12F0 | Convertible top compartment lid – timeout opening |
| B1C12F1 | Convertible top compartment lid – timeout while closing |
| B1C12F2 | Convertible top compartment lid – blockage when opening |
| B1C12F3 | Convertible top compartment lid – blockage when closing |
| B1C12F4 | Convertible top compartment lid – position implausible |
| B1C1311 | Supply voltage for Hall sensors, rear spoiler – short circuit to ground |
| B1C1313 | Supply voltage to Hall sensors, rear spoiler – open circuit |
| B1C1411 | Valve to open convertible top compartment lid – short circuit to ground |
| B1C1412 | Valve to open convertible top compartment lid – short circuit to B+ |
| B1C1413 | Valve to open convertible top compartment – open circuit |
| B1C1419 | Valve to open convertible top compartment lid – current too high |
| B1C1511 | Valve for convertible top compartment lid close – short circuit to ground |
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.