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Circuit Operation - Class 2 Data Line
Class 2 data is transmitted at a higher speed and messages are configured differently than UART data. While UART uses a master to control serial data line traffic, Class 2 uses the peer-to-peer method along with message arbitration to manage data line traffic. The control modules on the Class 2 data line are:
^
Powertrain Control Module (PCM) ^
Remote Function Actuator
(RFA) Module