Data Link Connector (DLC)

The Data Link Connector (DLC) is a 16-pin connector that provides the technician a means of accessing serial data for aid in the diagnosis. This connector allows the technician to use a scan tool in order to monitor the various serial data (parameters) and display the Diagnostic Trouble Code (DTC) information. The DLC is located inside of the driver's compartment, underneath the dash. Pin-4 and Pin-5 are grounds. Pin-7 is the ISO Serial Data and Pin-16 is B+.

Some common uses of the scan tool are listed below:

^ Identifying the stored Diagnostic Trouble Codes

^ Clearing the DTCs

^ Performing the output control tests

^ Reading the serial data