Data Link Connector (DLC)
The data link connector (DLC) contains the following serial data
links:
| • | 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
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:
Entertainment and Comfort (E&C) Serial Data Link
The entertainment and comfort (E&C) serial data link allows a scan
tool to communicate with the radio or the mobile telephone handset the remote
CD player (if equipped). This communication is for diagnostic and testing
purposes. The E&C serial data link is located at the DLC connector terminal 14,
circuit 835.
