Home >> Subaru >> 2017 >> Outback 2.5i >> Repair and Diagnosis (Single Page) >> Engine Performance >> Testing & Diagnosis >> Engine Control System (Diagnostics) (P0171 To P0685) (H4DO) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC P0685: ECM/Pcm Power Relay Control Circuit/Open >> Execution Condition