P117A on the 2007 Volkswagen Jetta
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.
| TT241102 | 2023-07-05. Service bulletin. For concerns of Fault Code P117A ?Bank 1, correction Lambda middle reached adjustment limit? stored in the ECM, check that the O2 sensors have not been installed or connected improperly. |
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1 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.