1985 Ford F-150 Auxiliary Reverse Light Switch Wiring Diagram - Relay Trigger

This is a simple hand-drawn wiring sketch (filename switch.JPG) showing how to wire a six-terminal switch, likely for an auxiliary lighting or relay-triggering setup. The switch is drawn as a rectangle with six terminals marked by X's in three rows of two. The drawing instructs the installer to jumper the two top terminals together, shown by a thick black wire looping from the upper-left terminal around the outside of the switch body to a lower terminal. The middle-left terminal is labeled as receiving power from the transmission backup (reverse) light power source, while the middle-right terminal connects to 12-volt power. A bottom terminal is labeled as the output going to the switched-power source side of a relay. No wire colors, gauge sizes, part numbers, fuse ratings, or vehicle-specific information are given. A reader can learn the basic terminal assignments for wiring this switch so that either the backup-light circuit or a manual 12V feed can trigger a relay — a common setup for adding auxiliary reverse lights that can also be switched on manually. The document does not state a year, make, or model, though it was uploaded to a 1985 Ford F-150 gallery.