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 {OBD System} and press the [YES] key.
5. On the display screen, select the {O2 Sensor Monitor} and press the [YES] key.
6. On the display screen, select the {Bank 1-Sensor 1} or {Bank 1-Sensor 2} and press the [YES] key.
- Bank 1-Sensor 1 indicates the front oxygen or A/F sensor, and Bank 1-Sensor 2 indicates the rear oxygen sensor.

- A list of the support data is shown in the following table.

NOTE: For detailed operation procedure, refer to the SUBARU SELECT MONITOR OPERATION MANUAL.