No Communication With EBCM/EBTCM

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Part 2 Of 2:

CIRCUIT DESCRIPTION
The serial data class 2 allows all of the modules on the line to transmit information to each other as needed. Each module is assigned an ID. All of the information sent out on the line is assigned a priority by which the information is received. When the ignition switch is turned to the RUN position, each module begins to send and receive information. Each module on the serial data class 2 knows what information the module needs to send out and what information the module should be receiving. What the modules do not know is which module is supposed to send the information. This information is only learned after the module has received the information needed along with the ID of the module that sent the information. This information is then remembered until the ignition switch is turned OFF.