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Home >> Subaru >> 2017 >> Legacy 2.5i Limited >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 14 (Engine Control System (Diagnostics) (P0161 To P0685) (H6DO)) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC P0685 ECM/Pcm Power Relay Control Circuit/Open >> Component Description

Component Description

WARNING: This page is about a different variant/trim than selected.

The main relay controls the current in the coil section to switch ON/OFF the ECM by receiving instructions from the ignition switch and Evaporative Leak Check Module.

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