C1531 on the 2016 Subaru Impreza
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.
| 064614 | 2023-04-03. Service bulletin. This bulletin provides a revised adjustment procedure to be used when diagnosing Brake Light Switch (BLS) -related DTCs C1531 and/or C0054. If the BLS is out of adjustment, the ABS and/or VDC warning lamp may illuminate. |
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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.