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C11F901 — Dipped beam headlight - electrical fault
Dipped beam headlight - electrical 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 C11F901
How to read and clear C11F901
- 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 C11F901 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 Light Control Left
| C11F4F3 | Servo motor for dynamic cornering light – switch-off due to overtemperature |
| C11F513 | Servo motor for PDLS drum – open circuit |
| C11F5F0 | Servo motor for PDLS drum – short circuit |
| C11F5F2 | Servo motor for PDLS drum – switch-off due to overtemperature |
| C11F5F3 | Servo motor for PDLS drum – function restriction due to overtemperature |
| C11F729 | PDLS drum position sensor - signal implausible |
| C11FA01 | Static cornering light - electrical fault |
| C11FB01 | High beam headlight - electrical fault |
| C11FD13 | Power supply for dipped beam headlight - open circuit |
| C11FE13 | Static cornering light - open circuit in power supply |
| C11FF13 | High beam - power supply, open circuit |
| C121F13 | Fan power supply - open circuit |
All 223 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.