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Home >> Buick >> 2015 >> Regal GS, AWD >> Repair and Diagnosis >> Electrical >> Motors, Switches, Relays >> Wiring Systems And Power Management - Diagnostic Information And Procedures >> Diagnostic Information and Procedures >> DTC B144A: RUN Power Relay >> Circuit/System Description

Circuit/System Description

The body control module (BCM) feeds the ignition circuit by applying voltage when the vehicle is in the Ignition ON mode.

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