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P0606 on the 2016 Subaru WRX

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.

Nobody has written a description of this code yet.

Bulletins for this model year that name P0606
07-75-13R2020-04-02. Service bulletin. This Bulletin provides information regarding DTC P0606 related specifically to the determination of this code on Forester Turbo and applicable WRX models.
07-75-13R2018-04-16. Service bulletin. On Forester Turbo and applicable WRX models, after re-connecting the battery, if the ignition switch is turned back ?ON? within one minute after the first time the ignition is turned ?OFF?, it becomes possible for the CEL to illuminate storing DTC P0606 in memory. The code will not occur immediately, but may occur after a period of time depending upon how the vehicle is operated
07-75-13R2018-04-02. Service bulletin. This Bulletin provides information regarding DTC P0606 related specifically to the determination of this code on Forester Turbo and applicable WRX models. The engine management system is equipped with a back-up memory. When disconnecting the battery cables, this back-up memory is cleared. On Forester Turbo and applicable WRX models, after re-connecting the battery, if the ignition switch is turned back ?ON? within one minute after the first time the ignition is turned ?OFF?, it becomes possible for the CEL to illuminate storing DTC P0606 in memory. The code will not occur immediately, but may occur after a period of time depending upon how the vehicle is operated.

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.