CHECK CURRENT DATA.

1) Start the engine.

2) Read the data of engine coolant temperature sensor signal using Subaru Select Monitor.

NOTE:

For detailed operation procedure, refer to “READ CURRENT DATA FOR ENGINE”.

QUESTION

Is the engine coolant temperature less than −40°C (−40°F) ?

Yes No

Repair the poor contact.

NOTE:

In this case, repair the following item:

• Poor contact of engine coolant temperature sensor

• Poor contact in ECM

• Poor contact of coupling connector