Headlight Relay Wiring Diagram - Brights & Dims Relays (Ford Bronco)

This is a hand-drawn wiring diagram showing how to install two automotive relays (labeled "brights" and "dims") to power headlights, presumably as a headlight relay upgrade. Each relay is drawn with standard terminals 86, 30, 87 (shown twice), and 85. Three headlight connectors are shown, each with pins labeled b, d, and g: the "stock plug" (the factory headlight connector, now used as a trigger source), the "drivers side" headlight, and the "passenger side" headlight. Colored wires indicate the circuits: a green wire runs from the stock plug's d terminal to terminal 86 of both relays and to the g pins of the driver and passenger side connectors; a blue wire runs from the stock plug's b terminal through the 87 terminals of both relays to the b pins of both headlight connectors; a red wire feeds terminal 30 of both relays from "12v power"; and a black wire connects terminal 85 of both relays "to ground." A reader can learn the relay terminal assignments and wiring routing needed to convert factory headlight wiring so the stock plug triggers relays that supply the headlights directly from battery power. The diagram is undated and does not state a specific vehicle application.