Data Link Communications Operation

CLASS 2 SERIAL DATA LINK
The Class 2 serial data link allows these modules to communicate data with each other:
^ Body Control Module (BCM)
^ Driver Information Display Module Driver Seat Adjuster Memory Module
^ Electronic Brake Control Module (EBCM)
^ Inflatable Restraint Sensing and Diagnostic Module (SDM)
^ Instrument Cluster
^ Powertrain Control Module (PCM) Vehicle Control Module (VCM)
^ Transfer Case Shift Control Module
^ Vehicle Interface Unit (VIU)

In addition, the Class 2 serial data link allows a scan tool to communicate with these modules for diagnostic and testing purposes. The Class 2 serial data link is located at the DLC connector.