Ford Voltage Regulator Wiring Diagram - I A S F Terminals with Adapter Plug

This document is a simple hand-drawn wiring diagram showing how to connect a voltage regulator to a vehicle's original wiring harness using an adapter. The regulator at the top has four terminals labeled I, A, S, and F. Four color-coded wires run from these terminals: a green wire from I, a yellow wire from A, a white/hatched wire from S, and an orange wire (marked with blue hashes) from F. These wires pass through two stacked connector blocks that are collectively labeled 'Adapter,' then continue down to a block labeled 'Original plug from car.' Below that, two lines represent the wiring 'Loom back to car.' A reader can learn the terminal order on the regulator (I-A-S-F), which wire color corresponds to which terminal, and that an adapter is used between the regulator plug and the vehicle's original connector rather than splicing directly into the harness. The diagram contains no fuse information, part numbers, torque values, year designations, or model applicability statements, it is purely a pin-to-pin/color routing illustration. It was uploaded to the gallery of a 1976 Ford Ranchero, and nothing in the drawing contradicts that application.