Module, Body Control (BCM): Description

Courtesy of CHRYSLER GROUP, LLC

The Body Control Module (BCM) (1) is mounted in the dashboard, left of the steering wheel, behind a removable aesthetic cover that allows the access to fuses mounted on the component.

The BCM:

• Is the configuration master for the vehicle. As the configuration master, the BCM broadcasts configuration data over the bus whenever the ignition is in the RUN state.
• Receives hardwired input from sensors and switches.
• Provides logic and output control of certain electrical systems.
• Provides load shedding logic and control.
• Is the central gateway module for the Controller Area Network (CAN) and Local Interface Network (LIN) bus networks.
• Supports flashing (reprogramming)

Some functional advantages of the BCM include:

• CAN message optimizations
• Controls all exterior lighting outputs
• Intelligent Battery Sensor (IBS) connection on LIN to the BCM
• Interior Lighting and Dimmable "Mood" Lighting