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Circuit/System Description

The electronic brake module (EBCM) receives a GMLAN message from each of the network modules. Each module contains its own unique identification (Id) code that must be learned into the EBCMs memory. Once all the IDs have been learned and vehicle speed is 25 mph, or greater, the EBCM continuously compares Ids in the GMLAN message to its learned Ids to determine if all the network modules are present.