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Home >> Buick >> 2015 >> Regal GS, AWD >> Repair and Diagnosis >> Engine Mechanical >> Starter >> Battery, Charging System And Starting System (12-Volt) - Diagnostic Information And Procedures >> Diagnostic Information and Procedures >> DTC B151A: Battery Capacity Performance >> Circuit/System Description

Circuit/System Description

The body control module (BCM) monitors the battery voltage level during an engine crank event to detect a low battery voltage condition.

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