Data Link Connector (DLC)

DLC:

The twelve terminal Data Link Connector (DLC) is wired to the PCM and is located in the drivers compartment under the left side of the instrument panel. This connector has terminals that diagnose the system by means of a jumper wire or scan tool.

The following terminals are used in conjunction with electronic transmission control diagnosis.

A. This terminal provides a ground circuit for all other terminals.

B. This terminal is the "diagnostic" terminal for the PCM. When grounded to terminal "A" with the ignition switch "ON," engine "OFF," the Malfunction Indicator Lamp (MIL) located on the instrument panel will flash Diagnostic Trouble Codes (DTC).

M. This is the serial data line and is used by the scan tool to communicate with the PCM and interpret various system data.