What connectors are shown in this diagram?

The diagram shows two connectors: the Self-Test Input (STI) connector and the Data Link Connector (DLC).

What does STI stand for in this diagram?

STI stands for Self-Test Input, labeled as the SELF-TEST INPUT (STI) CONNECTOR.

What does DLC stand for?

DLC stands for Data Link Connector, as labeled in the diagram.

Is a specific pin highlighted on the Data Link Connector?

Yes, one pin on the DLC is circled in red in the drawing, though the document does not label or identify which pin it is.

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

Self-test input (STI) and data link connector (DLC) identification diagram

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Diagram identifying the self-test input connector and data link connector with jumper point for EEC self-test.

AI caption January 2005 · Photo 83 of 499

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.

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Frequently asked questions

What connectors are shown in this diagram?: The diagram shows two connectors: the Self-Test Input (STI) connector and the Data Link Connector (DLC).
What does STI stand for in this diagram?: STI stands for Self-Test Input, labeled as the SELF-TEST INPUT (STI) CONNECTOR.
What does DLC stand for?: DLC stands for Data Link Connector, as labeled in the diagram.
Is a specific pin highlighted on the Data Link Connector?: Yes, one pin on the DLC is circled in red in the drawing, though the document does not label or identify which pin it is.