Information Bus: Description and Operation

DATA LINK COMMUNICATIONS DESCRIPTION AND OPERATION

DATA LINK CONNECTOR (DLC)
The data link connector (DLC) terminal 2 contains the class 2 serial data link.

The DLC also provides a power source and Signal Ground for the scan tool as follows:
- Battery voltage at the DLC terminal 16 (circuit 40)
- Power Ground at terminal 4 (circuit 150)
- Signal Ground at terminal 5 (circuit 451)

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)
- Digital radio receiver (DRR)
- The electronic brake control module (EBCM)
- The instrument panel cluster (IPC)
- The radio.
- The powertrain control module (PCM)
- The inflatable restraint sensing and diagnostic module (SDM)
- Vehicle communication interface module (VCIM)

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