Home › Fault codes › C11C5F0
C11C5F0 — High-voltage syst., Locking after crash active
High-voltage syst., Locking after crash active. 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 C11C5F0
How to read and clear C11C5F0
- 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 C11C5F0 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 DC/DC Converter
| C113AF4 | HV voltage converter, internal temperature sensor – implausible signal |
| C113AF5 | HV voltage converter – control unit defective |
| C113AF6 | HV voltage converter, control unit – communication error |
| C113AF7 | HV voltage converter, internal voltage sensor – implausible signal |
| C113AFC | HV voltage converter, internal current sensor – implausible signal |
| C114101 | Terminal 30 – defective |
| C136BF2 | High-voltage voltage converter - below voltage limit (400 V) |
| C136BF3 | High-voltage voltage converter - above voltage limit (400 V) |
| C136BF5 | High-voltage voltage converter - above current limit (800 V) |
| C136BF6 | High-voltage voltage converter - below voltage limit (800 V) |
| C136BFA | High-voltage voltage converter - function restriction due to undervoltage (12 V) |
| C136BFB | High-voltage voltage converter - function restriction due to overvoltage (12 V) |
All 200 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.