See also:

ON
This is the normal operating position after the engine is started. ...

CHECK ENGINE warning light/Malfunction indicator lamp
CAUTION If the CHECK ENGINE warning light/ malfunction indicator lamp illuminates while you are driving, have your vehicle checked/repaired by your SUBARU dealer as soon as possible. Continued ve ...

For U.S.A
The following information has been compiled according to Code of Federal Regulations “Title 49, Part 575”. ...