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 3216 of 6433

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.