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C11EFF1 — Power-assisted steering function - unexpected values from power steering
Power-assisted steering function - unexpected values from power steering. 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 C11EFF1
How to read and clear C11EFF1
- 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 C11EFF1 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
| C11EEF3 | Time delay function, Unexpected values from driver assistance systems control module |
| C11EEF4 | Time delay function, unexpected values from vehicle electrical system control module |
| C11EEF5 | Time delay function, unexpected values from airbag control module |
| C11EEF6 | Time delay function, unexpected values from lane change assistance control module |
| C11EEF8 | Time delay function, Unexpected values from the electronic central electrics |
| C11EFF0 | Steering assistance function, unexpected values from active steering |
| C11F1F0 | Brake system, Over press. protect. active |
| C11FC14 | Indicator light for electromechanical parking brake - open circuit/short circuit to ground |
| C124654 | Electromechanical parking brake, No basic setting |
| C1246F2 | Electromechanical parking brake, Extreme incline detected when closing |
| C1246F3 | Electromechanical parking brake, not refaced |
| C1246F4 | Electromechanical parking brake, Not lowered correctly |
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.