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U11A900 — Bulb 8 for roof contour lighting, implausible message
Bulb 8 for roof contour lighting, implausible message. 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 U11A900
How to read and clear U11A900
- 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 U11A900 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 Central Electrics
| U11A300 | Bulb 5 for roof contour lighting, implausible message |
| U11A400 | Bulb 6 for roof contour lighting, No communication |
| U11A500 | Bulb 6 for roof contour lighting, implausible message |
| U11A600 | Bulb 7 for roof contour lighting, No communication |
| U11A700 | Bulb 7 for roof contour lighting, implausible message |
| U11A800 | Bulb 8 for roof contour lighting, No communication |
| U11AA00 | Cupholder with heating and cooling element, No communication |
| U11AB00 | Cupholder with heating and cooling element, implausible message |
| U11C500 | Ambient light, front left footwell (AL6) – no communication |
| U11C600 | Ambient light, front left footwell (AL6) – message implausible |
| U11C700 | Ambient light, front right footwell (AL7) – no communication |
| U11C800 | Ambient light, front right footwell (AL7) – message implausible |
All 1472 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.