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C12ECF0 — EgoMaster – tire circumference not calculated
EgoMaster – tire circumference not calculated. The Taycan, 911 (992), 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 C12ECF0
How to read and clear C12ECF0
- 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 C12ECF0 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 Front Assist Camera
| C12E5F0 | Automated driving data memory, Test mode active |
| C12E6F0 | Automatic headlamp calibration, Storing the results in the front camera is not successful |
| C12E8F0 | Steering wheel contact, Signal not initialized |
| C12E9F0 | Control module for front corner radar 1, BlockID not plausible |
| C12EAF0 | Control module for front corner radar 2, BlockID not plausible |
| C12EBF0 | Laser for adaptive cruise control, BlockID not plausible |
| C12ED00 | Functional limitation due to limited view of the radar sensors |
| C12F1F0 | Brake electronics, Signal not initialized |
| C12F2F0 | Electronic chassis suspension platform, Signal not initialized |
| C12F4F0 | Secondary breaking system, Signal not initialized |
| C12F5F0 | Test bench mode, active |
| C12FAF0 | Driver assistance systems front camera, Check sum errors |
All 336 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.