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Network Message Chart

Module Network Input Messages - BCM 

Broadcast Message Originating Module Message Purpose
Child lock request DDM Provides the BCM with the child lock request when the child lock button is pressed on the master window control switch.
Door lock switch status DDM/ PDM Provides the BCM with lock/unlock requests based on the input from the door lock control switch.
Driver door latch status DDM Provides the BCM with the lock/unlock status of the driver door latch. The lock/unlock status is used for the illumination of the door lock status indicators.
Driver rear door latch status DDM Provides the BCM with the lock/unlock status of the driver rear door latch. The lock/unlock status is used for the illumination of the door lock status indicators.
Message center feature configuration IPC Provides the BCM configuration settings selected by the driver of the vehicle, such as autolock and auto-unlock settings.
Passenger front door latch status PDM Provides the BCM with the lock/unlock status of the passenger front door latch. The lock/unlock status is used for the illumination of the door lock status indicators.
Passenger rear door latch status PDM Provides the BCM with the lock/unlock status of the passenger rear door latch. The lock/unlock status is used for the illumination of the door lock status indicators.
RKE data RTM Provides the BCM with the RKE commands and, if equipped, passive key information.
Vehicle speed ABS module The BCM uses the vehicle speed data for autolock and auto-unlock features.

Module Network Input Messages - DDM 

Broadcast Message Originating Module Message Purpose
Central lock command BCM Provides the DDM with a command to lock or unlock the door. The DDM sends the lock or unlock command to the respective RDM.

Module Network Input Messages - PDM 

Broadcast Message Originating Module Message Purpose
Central lock command BCM Provides the PDM with a command to lock or unlock the door. The PDM sends the lock or unlock command to the respective RDM.

Module Network Input Messages - RGTM 

Broadcast Message Originating Module Message Purpose
Vehicle lock status BCM Provides the RGTM with the lock/unlock status. The RGTM uses this message to determine when to allow the power liftgate to open when the release switch is pressed.
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