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Home >> Subaru >> 2020 >> Crosstrek Base, Automatic CVT Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 6 (P-HEV Hybrid Powertrain Control System (Diagnostics) (1 Of 2)) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC P0688-1F: ECM/Pcm Power Relay Sense Circuit Intermittent >> General Description >> Monitor Description

Monitor Description

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

The Hybrid vehicle control ECU assembly monitors the +B power source voltage and detects momentary interruptions.

If there is a momentary interruption in the +B power source voltage, the Hybrid vehicle control ECU assembly will illuminate the MIL and store a DTC.

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