How are the pins numbered on the Ford 60-pin EEC connector?

Pins are numbered in three rows of twenty: pins 1–20 across the top row, 21–40 across the middle row, and 41–60 across the bottom row. Pin 1 is at the top left and pin 60 at the bottom right.

Where is pin 1 on the EEC connector?

Pin 1 is at the top-left corner of the connector as shown in the diagram.

What is the feature in the center of the connector?

The center of the connector has a round hole (shown in yellow) for the connector retaining bolt, located between pins 30 and 31 in the middle row.

Does this diagram list what each pin does?

No. The diagram only shows the physical location and numbering of pins 1 through 60; it does not include circuit functions, wire colors, or signal names.

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Ford EEC 60-Pin PCM Connector Pin Numbering Diagram (EEC-IV Pinout Layout)

Numbered 60-pin connector pinout face diagram with red contacts on a grey housing

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Connector face diagram of a 60-pin Ford fuel-injection connector with numbered pin positions on a keyed housing.

AI caption March 2011 · Photo 941 of 2216

This document is a pin-numbering diagram for a 60-pin Ford EEC (Electronic Engine Control) computer/PCM connector. It depicts the connector face as viewed with the pins arranged in three horizontal rows of twenty positions each: pins 1–20 across the top row, pins 21–40 across the middle row, and pins 41–60 across the bottom row. Each row is split into two groups of ten pins, separated by a central section containing the round connector retaining-bolt hole (shown in yellow). Pin 1 is located at the top-left corner and pin 60 at the bottom-right corner, both emphasized in bold. The diagram carries a copyright notice from Ford Fuel Injection.com dated 2005. No wire colors, circuit names, signal functions, or vehicle year/model applicability are printed on the diagram itself; it serves purely as a pin-location reference so that a technician using a separate EEC/PCM pinout table can identify which physical cavity corresponds to each pin number when probing or back-probing the engine computer harness connector. It was uploaded to a 1992 Ford Bronco gallery alongside a related PCM ground (G101) document, suggesting it is intended as a companion reference for EEC-IV diagnostics.

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Frequently asked questions

How are the pins numbered on the Ford 60-pin EEC connector?: Pins are numbered in three rows of twenty: pins 1–20 across the top row, 21–40 across the middle row, and 41–60 across the bottom row. Pin 1 is at the top left and pin 60 at the bottom right.
Where is pin 1 on the EEC connector?: Pin 1 is at the top-left corner of the connector as shown in the diagram.
What is the feature in the center of the connector?: The center of the connector has a round hole (shown in yellow) for the connector retaining bolt, located between pins 30 and 31 in the middle row.
Does this diagram list what each pin does?: No. The diagram only shows the physical location and numbering of pins 1 through 60; it does not include circuit functions, wire colors, or signal names.