Hand-Drawn Auxiliary Light Relay Wiring Diagram - 1991 Ford Bronco Off-Road Lights

This document is a hand-drawn wiring diagram, sketched in ink on lined notebook paper, showing how to wire a pair of auxiliary lights (such as off-road, fog, or driving lights) using a relay, two fuses, a toggle switch, and the vehicle battery. Two lights at the top are each individually grounded and share a common feed wire from one terminal of a centrally drawn relay. The relay itself has a ground connection. Power for the lights comes from the battery positive terminal through an inline fuse to the relay. A second fused wire runs from the positive/battery circuit to a dash-mounted switch, which controls the relay's coil; the switch circuit also shows a ground connection. A reader can learn the basic layout of a relay-controlled auxiliary lighting circuit: fused battery power to the relay's load side, fused switched power for the relay trigger, and separate grounds for the lights, relay, and switch circuit. The diagram contains no amperage ratings, wire colors, gauge sizes, part numbers, relay pin numbers, or vehicle-specific information, it is a generic schematic uploaded to a 1991 Ford Bronco gallery, and nothing in the drawing contradicts that application.