What circuits connect to the Ford ignition switch in this diagram?

Feed circuits 37 (five terminals) and 57 enter the switch; output circuits are 687 (three terminals), 41, 16, 297, 33 and 977.

What positions does the ignition switch have?

Each switch wafer shows START, RUN, ACC2, OFF/LOCK and ACC1 positions.

What are the wire colors and gauges at ignition switch connector 14401?

37 Y 10, 977 P/W 20, 57 BK 20, 41 BK/LB 20, 297 BK/LG 10, 687 GY/Y 10 and GY/Y 12, 16 R/LG 12, and 33 W/PK 12 (with AH/AZ suffixes).

What part number is shown for the ignition switch wiring?

F2TB-14A464-VA is printed below the connector 14401 wire list.

What circuits go to the in-car sensor?

The in-car sensor is shown wired between circuits 790 and 470.

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Ford Ignition Switch Wiring Diagram - Connector 14401 Pinout, F2TB-14A464-VA

Ignition switch wiring diagram with switch positions, pin numbers and wire color codes

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Wiring diagram of the ignition switch circuit showing START/RUN/ACC positions, connector pins and color-coded wires.

AI caption December 2009 · Photo 3251 of 5000

This is a page from a Ford factory wiring diagram (grid zones 111–113, row A) showing the ignition switch internal schematic and its harness connector. The switch is drawn as five ganged wafers, each stepping through the positions START, RUN, ACC2, OFF/LOCK and ACC1. Power feeds enter on circuit 37 (five terminals) and circuit 57, while output circuits leave on 687 (three terminals), 41, 16, 297, 33 and 977, so a reader can determine which circuits are energized in each key position. Below the schematic, connector 14401 is shown with its full pinout/wire list, giving circuit number, wire color and gauge for each cavity: 37 Y 10, 977 P/W 20, 57 BK 20, 41 BK/LB 20, 297 BK/LG 10, 687 GY/Y 10 and 12, 16 R/LG 12, and 33 W/PK 12, with harness/splice suffixes (AH, AZ) and applicability codes such as ABEFG, ABCEFG, ABCEF and GH. The wiring assembly part number F2TB-14A464-VA appears below the connector. At the right edge, the in-car (temperature) sensor is shown wired on circuits 790 and 470, with a partially cut-off component label beginning E8AB. This page is useful for diagnosing ignition switch, start, accessory and charging-feed circuits.

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Frequently asked questions

What circuits connect to the Ford ignition switch in this diagram?: Feed circuits 37 (five terminals) and 57 enter the switch; output circuits are 687 (three terminals), 41, 16, 297, 33 and 977.
What positions does the ignition switch have?: Each switch wafer shows START, RUN, ACC2, OFF/LOCK and ACC1 positions.
What are the wire colors and gauges at ignition switch connector 14401?: 37 Y 10, 977 P/W 20, 57 BK 20, 41 BK/LB 20, 297 BK/LG 10, 687 GY/Y 10 and GY/Y 12, 16 R/LG 12, and 33 W/PK 12 (with AH/AZ suffixes).
What part number is shown for the ignition switch wiring?: F2TB-14A464-VA is printed below the connector 14401 wire list.
What circuits go to the in-car sensor?: The in-car sensor is shown wired between circuits 790 and 470.