B1661 on the 2017 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.
| 07-123-17 | 2018-04-02. Service bulletin. A design improvement has been made to the warning box assembly for improved responsiveness. The warning box is located inside the overhead map light assembly as shown in the illustrations below. The warning box part number has also been changed. On affected vehicles, the passenger?s airbag ON/OFF indicator flashes, the airbag warning lamp illuminates and DTC B1661: ?PASSENGER?S AIRBAG ON/OFF INDICATOR FAILURE? is stored. This DTC indicates communication between the warning box and combination meter has failed. The condition is more likely to be observed during high ambient temperature conditions. In some cases, there may also be a DTC B1502: ?WARNING BOX COMMUNICATION MALFUNCTION? stored in the combination meter memory. |
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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.