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 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.
