Read the data of “catalyst temperature #11” and “catalyst temperature #12” when idling the engine, using the Subaru Select Monitor.
NOTE:
For detailed operation procedures, refer to “READ CURRENT DATA FOR ENGINE”.
Are the data of “catalyst temperature #11” and “catalyst temperature #12” 10°C (50°F) or more?
Check the exhaust temperature sensor 1 and exhaust temperature sensor 2 circuit.