Component Tests and General Diagnostics

Class 2 data is transmitted at a higher speed and messages are configured differently than UART data. 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:
^ Body Control Module (PZM)
^ Cellular Telephone Module
^ Climate Control Panel (CCP)
^ Continuously Variable Road Sensing Suspension (CVRSS) Module
^ Electronic Brake/Traction Control Module (EBTCM)
^ Neater and A/C Programmer
^ Inflatable Restraint Sensing and Diagnostic Module (SDM)
^ Instrument Cluster
^ Integrated Radio Controller (IRC)
^ Memory Seat Module (MSM)
^ Memory Mirror Module (MMM)
^ Powertrain Control Module (PCM)
^ Radio
^ Radio Amplifier
^ Radio Interface Module (RIM)
^ Remote Function Actuator (RFA)