Data Link Communications Circuit Description and Operation

The Class 2 serial data link allows specified modules to transmit, receive, or exchange data:

• transfer case shift control module (TCSCM)
• electronic brake control module (EBCM)
• powertrain control module (PCM)
• body control module (BCM)
• instrument panel cluster (IPC)
• driver information center (DIC)
• inflatable restraint sensing and diagnostic module (SDM)