Home › Fault codes › B1CD496
B1CD496 — SFD (Vehicle Diagnostic Protection), internal fault
SFD (Vehicle Diagnostic Protection), internal fault. 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 B1CD496
How to read and clear B1CD496
- 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 B1CD496 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 Brake Electronics
| B116829 | Steering-angle sensor - implausible signal |
| B13BCF1 | Multiple collision brake, triggered |
| B13BCF3 | Multiple collision brake, Function canceled by driver |
| B13C629 | Power sunroof control module, Implausible signal |
| B147031 | Brake electronics – no signal from rear spoiler |
| B184C00 | Release active |
| B200000 | Control unit – function restriction |
| B200500 | Coding |
| B200FF0 | Control unit – function restriction |
| B200FF1 | Control unit – function restriction |
| B200FF2 | Internal malfunction |
| B200FF7 | Internal malfunction |
All 317 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.