CHECK INPUT SIGNAL FOR TCM USING SUBARU SELECT MONITOR.

1) Connect the connector to transmission.

2) Turn the ignition switch to ON (engine OFF).

QUESTION
Does the ATF temperature gradually decrease?
Yes	No
Even if the power indicator light is blinking, the circuit is in normal condition at this time. A temporary poor contact of connector or harness may be the cause. Repair the harness and poor contact of ATF temperature sensor and transmission connector.