Data Link Connector (DLC)
The DLC provides a power source for the scan tool as follows:
| • | Unswitched voltage (B+) at DLC terminal 16 (circuit 540) |
| • | Ground at terminal 4 (circuit 650) and terminal 5
(circuit 451) |
Class 2 Serial Data Link
The class 2 serial data link allows the following modules to communicate
data with each other:
| • | Electronic brake control module (EBCM) |
| • | Instrument cluster (IC) |
| • | Powertrain control module (PCM) |
| • | Inflatable restraint sensing and diagnostic module (SDM). |
The Class 2 serial data link allows a scan tool to communicate
with the above modules for diagnostic and testing purposes. The Class 2
serial data link is located at the DLC connector terminal 2.
