3-Position Auto/Off/On Switch Wiring Schematic - Temp Sensor & Relay Ground

This document is a simple hand-drawn style schematic of a three-position switch, likely intended for an electric cooling fan (or similar relay-controlled accessory) wiring setup. The switch has three selectable positions shown on the left: Auto, Off, and On, each indicated with dashed arrows pointing toward the switch body. On the right side, three terminals are labeled: the top terminal connects to "Ground From Temp Sensor," the middle terminal is "Out to Relay," and the bottom terminal is "Constant Ground." From this, a reader can learn how to wire a three-position toggle switch so that in the Auto position the relay is grounded through a temperature sensor (allowing automatic operation based on temperature), in the On position the relay output is tied to constant ground (forcing the relay/accessory on), and in the Off position no ground path is provided (accessory off). The document contains no vehicle-specific information, part numbers, wire colors, fuse ratings, or dates. It appears to be one page of a multi-page set uploaded to a 1987 Ford Bronco gallery, presumably documenting an aftermarket electric fan or relay control installation.