Class 2 Serial Data Link
The class 2 serial data link allows the following modules to communicate with each other:^ The body control module BCM
^ The electronic brake control module EBCM
^ The Radio
^ The powertrain control module PCM
^ The Remote Control Door Lock Receiver RCDLR
^ The inflatable restraint sensing and diagnostic module SDM
The class 2 serial data link allows a scan tool to communicate with the above modules for diagnostic and testing purposes.