Headlight Relay Wiring Diagram - Dual Relay Harness Upgrade (Ford Bronco)

This document is a color-coded wiring diagram for a headlight relay upgrade/conversion. It shows how two relays (Relay 1 and Relay 2) are wired between the vehicle's battery and the headlight bulbs, with the trigger signal taken from the existing headlight harness connector. Two fused red wires run from the battery positive terminal to the relays, while the battery negative terminal goes to ground. A splice point (shown as a filled black circle) joins wiring near the existing headlight harness connector. Blue and yellow wires run from the relays to the two headlight bulb connectors, each of which also has a black ground wire terminating at a ground symbol. A legend identifies the wire color codes used: red, white, yellow, blue, black, and blue with a white stripe, along with symbols for a wire splice, an in-line fuse, and ground. The diagram does not state a vehicle year, make, model, fuse amperage ratings, relay part numbers, or relay terminal numbers; it is a generic schematic-style illustration for adding relays to a headlight circuit so the headlights are powered directly from the battery rather than through the factory switch wiring.