Ford EEC Self-Test Input (STI) & Data Link Connector (DLC) Diagram - Taurus

This document is a simple line-drawing schematic identifying the diagnostic connectors used for EEC (electronic engine control) self-testing, uploaded to the gallery of a 1992 Ford Taurus. The illustration shows two connectors on a wiring pigtail: a small single-terminal SELF-TEST INPUT (STI) CONNECTOR, and a larger multi-pin trapezoidal DATA LINK CONNECTOR (DLC). Arrows point from each label to the corresponding connector in the drawing, and one pin on the Data Link Connector is circled in red (likely highlighting a specific terminal of interest, though no pin label or legend is given). No year, model, engine, part numbers, wire colors, or pin identifications appear in the document itself. A reader can learn from this diagram what the STI and DLC connectors look like and that they are found together on the same harness, which is useful for locating the diagnostic connectors when pulling trouble codes from an OBD-I era Ford EEC system.