B143C on the 2020 Porsche 911
The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.
This code is specific to a manufacturer and is not described here. Its meaning is in the manufacturer's service information.
| No. 47-24 | 2024-10-07. Service bulletin. Symptom based workshop manual for a warning message. "Ignition lock faulty - service required" in the instrument cluster/fault memory entry (B143C29) in the rear end electronics control unit |
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| No. 47-24 | 2024-05-02. Service bulletin. Symptom-based workshop manual for the "ignition lock faulty - service required" in the instrument cluster/faulty memory entry B143C29 |
| No. 2125.1 | 2022-02-04. Service bulletin. Instructions on advanced technical information for the 911 ignition lock warning along with fault code B143C29. |
3 on file from NHTSA, as of 2026-10-19. See them in the bulletin list. A bulletin lists model years: read the document for which vehicles it concerns.