Home › Fault codes › B13C312
B13C312 — External activation, Short circuit to B+
External activation, 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 B13C312
How to read and clear B13C312
- 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 B13C312 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 Rear View Camera
| B127EF0 | Side camera (left), calibration |
| B127F04 | Side camera (right) faulty |
| B127F4B | Side camera (right), temperature - above limit value |
| B127F54 | Side camera (right), calibration |
| B127FF0 | Side camera (right), calibration |
| B13C311 | External activation, Short circuit to ground |
| B13C313 | External activation, Open circuit |
| B186101 | Reversing camera - electrical fault |
| B1861F0 | Reversing camera supply voltage |
| B186201 | Voltage supply for front camera, Electrical error |
| B1862F0 | Front camera, supply voltage |
| B186301 | Side camera (left) - electrical fault |
All 74 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.