P1A5B on the 2017 Audi A6
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.
| A3423652070167_2 | 2023-12-06. Service bulletin. This bulletin provides information for when the cooling oil valve fails basic settings after repair; DTC P1A5B00. |
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| A3423632070167_1 | 2023-06-06. Service bulletin. This bulletin provides instructions for when DTC P1A5B00 is stored after replacing the transmission control module or valve body for another concern. |
2 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.