Class 2 Serial Data Link

The class 2 serial data link allows the following modules to communicate and share data with each other:

• Powertrain control module (PCM)
• Inflatable restraint sensing and diagnostic module (SDM)
• Electronic Brake Control Module (EBCM)
• Instrument Cluster (IPC)
• Heater-A/C Control (w/CJ2)
• Body Control Module (BCM)

The class 2 serial data link allows a scan tool to communicate with the above modules for diagnostic and testing purposes.