Data Link Connector (DLC)

DATA LINK CONNECTOR (DLC)
The data link connector (DLC) contains the following serial data links:
^ Class II
^ Entertainment and Comfort (E&C)

The DLC also provides a power source for the scan tool as follows:
^ Unswitched voltage (B+) at DLC terminal 16 (circuit 1450)
^ Ground at terminal 4 (circuit 1450) and terminal 5 (circuit 1550)

CLASS II SERIAL DATA LINK
The class II serial data link allows the following modules to communicate data with each other:
^ Body Control Module (BCM)
^ Electronic Brake Traction Control Module (EBTCM)
^ Heater-A/C control (if equipped with RPO CJ2)
^ Instrument Panel Cluster (IPC)
^ Powertrain Control Module (PCM)
^ Inflatable Restraint Sensing and Diagnostic Module (SDM).

The Class II serial data link allows a scan tool to communicate with the above modules for diagnostic and testing purposes. The Class II serial data link is located at the DLC connector terminal 2. Terminal 2 consists of the following circuits:
^ Circuit 1036
^ Circuit 1037
^ Circuit 1128
^ Circuit 1049
^ Circuit 1122
^ Circuit 1132