How are the two lights connected to the switch in this diagram?

A 3-way connector joins the two lights with the single wire that runs from the switch, so both lights are fed from one switched wire.

Where does the power for the lights come from?

The wire runs from the battery to the switch, and then from the switch down to the 3-way connector that feeds both lights.

How are the grounds handled in this wiring diagram?

The switch has its own ground ('Switch ground'), and each of the two lights has its own ground, labeled 'Light grounds'.

Does the diagram show a fuse or relay in the circuit?

No. The diagram only shows the battery, a switch, a 3-way connector, two lights, and their grounds—no fuse or relay is drawn.

Home/ Registry/ Ford/ Bronco/ 1992-1996/ “Big '92”/ Photo supermotors.net/registry/media/865918

DIY Auxiliary Light Wiring Diagram - Battery, Switch & Two Lights (Ford Bronco)

Hand-drawn circuit diagram showing a switch, battery, two lights and a 3-way connector with notes

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Simple hand-drawn wiring diagram showing a switch and battery feeding two lamps through a 3-way connector.

AI caption May 2011 · Photo 970 of 2216

This is a simple hand-drawn (computer-sketched) wiring diagram uploaded to illustrate how to wire two auxiliary lights to a battery through a switch. The drawing shows a battery (red box) connected by a blue wire to a switch. The switch has its own ground labeled 'Switch ground'. From the switch, a black wire runs down to a 3-way connector; a green callout explains: 'There is a 3way connector here that connects the two light with the wire that goes to the swich' (sic). From that connector, a blue wire branches to two lights (drawn as rectangles), and each light has its own ground, labeled 'Light grounds' with green leader lines. The diagram contains no wire gauge specifications, fuse ratings, relay, wire colors (beyond the drawing colors), part numbers, or vehicle-specific information. A reader can learn the basic circuit topology: battery positive to switch, switch output to a 3-way splice feeding two lights in parallel, with separate chassis grounds for the switch and each light. It was uploaded to a 1992 Ford Bronco gallery, presumably documenting the owner's auxiliary light installation, but nothing in the drawing itself identifies a vehicle or year.

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Frequently asked questions

How are the two lights connected to the switch in this diagram?: A 3-way connector joins the two lights with the single wire that runs from the switch, so both lights are fed from one switched wire.
Where does the power for the lights come from?: The wire runs from the battery to the switch, and then from the switch down to the 3-way connector that feeds both lights.
How are the grounds handled in this wiring diagram?: The switch has its own ground ('Switch ground'), and each of the two lights has its own ground, labeled 'Light grounds'.
Does the diagram show a fuse or relay in the circuit?: No. The diagram only shows the battery, a switch, a 3-way connector, two lights, and their grounds—no fuse or relay is drawn.