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Home >> Chevrolet >> 2013 >> Volt >> Repair and Diagnosis >> External Pages >> Different car >> Section 22 (Battery, Charging System And Starting System) >> Description and Operation >> Charging System Description and Operation >> Charging System Components >> Body Control Module (BCM)

Body Control Module (BCM)

WARNING: This page is about a different car, the 2011 Chevrolet Volt. However, it is still accessible from the selected car via links, so may be relevant.

The body control module (BCM) is a GMLAN device. It communicates with the engine control module (ECM) and the instrument panel cluster for electrical power management operation. The BCM determines the desired voltage set point and sends the information to the APM. The BCM monitors a battery current sensor, the battery positive voltage circuit, and estimated battery temperature to determine battery state of charge.