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Network Message Chart - Push Button Start

Module Network Input Messages - Body Control Module (BCM) 

Broadcast Message Originating Module Message Purpose
Intelligent access system status RFA module Provides the BCM with the Intelligent Access (IA) key data. The data contains information such as, if an Intelligent Access (IA) key has been detected, how many were detected and if it is a programmed key. It also contains the RFA module ID, which is checked by the BCM.
RKE RFA module Tells the BCM which specific programmed Intelligent Access (IA) key is in use.
Power pack status PCM Provides the BCM with the current ignition status of the PCM.
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