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C11B104 — Light sensor, faulty
Light sensor, faulty. 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 C11B104
How to read and clear C11B104
- 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 C11B104 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 Instrument Cluster
| C10D504 | Electromechanical power steering indicator lamp, Faulty |
| C10EE00 | Rolling test mode - fault |
| C113404 | Brake system indicator lamp, Faulty |
| C113504 | ASR and ESP indicator lamp, Faulty |
| C113604 | ABS indicator lamp, Faulty |
| C113E00 | Software error detected |
| C11FC04 | Electromechanical parking brake indicator lamp, faulty |
| P162400 | Engine control indicator light switched on |
| U006400 | Infotainment CAN bus faulty |
| U103000 | LIN bus 1 – electrical fault |
| U110000 | Component protection – not taught |
| U110100 | Component protection active |
All 176 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.