Its weird how this goes. Sometimes the check engine light turns off along with the cruise control flashing.l just had it inspected and the scan said nothing was wrong with my car. at that time my check engine had been off for 2 days. but a day later it came back on. l have checked the gas cap, wondering if its a loose wire or something. any info would be appreciated.

probably needs wind shield washer fluid

Take it to your local parts store (ie Auto Zone or Napa) and they have a machine that they can hook up to it that tells you why your light is on and they will tell you how to fix the problem

check for a vacuum leak. had the same problem and it turned out to be a solenoid.

head of to a reputable dealer or preferably a subaru specific independant and schedule a diagnostic appointment.a simple OBD2 scan will only show hard codes not intermittent.

the ''machine'' at auto zone is a cheapo code reader in the hands of a highly unqualified,un-liscensed cash register jocky,codes are a clue not a cause.