display screen, select the {Each System Check} and press the [YES] key.
2. On the display screen, select the {Engine Control System} and press the [YES] key.
3. Press the [YES] key after displayed the information of engine type.
4. On the display screen, select the {Diagnostic Code(s) Display} and press the [YES] key.
5. On the display screen, select the {Current Diagnostic Code(s)} or {History Diagnostic Code(s)} and press the [YES] key.

NOTE: For detailed operation procedure, refer to the SUBARU SELECT MONITOR OPERATION MANUAL.
For detailed concerning diagnostic trouble codes, refer to the List of Diagnostic Trouble Code (DTC).
Diagnostic Trouble Code Descriptions