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618TRVLWILD

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AUX Switch Wiring Diagrams:

By @swooshdave
Ford Bronco 2021 Bronco AUX Switches Wiring Diagram, Video, Discussions bronco-aux-switches-upfitter-wiring-diagram-jpe



Ford Bronco 2021 Bronco AUX Switches Wiring Diagram, Video, Discussions e0ti3mrxoaabein-jpe




🎥: by Bronco Nation


How to access, connect, and use the auxiliary switches in the 2021 Bronco.
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Hey19

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Ok!! Another piece of the Bronco puzzle!
 

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ZackDanger

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Short of the long of it:

All switch wires terminate under the hood at the power distribution point. These 6 power leads are relayed and fused already and have specific ratings. (The power is not actually running through the switches in the cab

From that point, additional wires are prerun to various points in the Bronco (Grill, behind glove box). And then from the glove box additional wires are run further (top of the windshield, right rear quarter).

You connect the specific switch wire at the distribution point to the next wire that heads in whatever direction you want to power. Additional connection may/can be made at that next wire’s termination point to continue to the desired destination.

Or you just connect your own wires to whichever switched power circuit you want and run it yourself to wherever.

We already know that the switches/circuits are rated for various amps, so relays are not (necessarily) needed. But if you did want to exceed the switch’s amp rating, it would be easy to add the relay in the engine bay at the distribution point before you send the power along. (You would just have to be mindful of whatever gauge wire you use from that point forward.)

All trailing wires are rated for the highest amp switch, so you theoretically don’t have to worry about the connections down the line as long as you select the appropriate switch for the load.
 
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Erock

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Be nice if he had have explained how relays and all could be wired in... for those that don’t know. I can imagine folks trying to run a 30 amp accessory on a 10 amp fuse... lol
 

Lorenzo

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Short of the long of it:

All switch wires terminate under the hood at the power distribution point.

From that point, additional wires are prerun to various points in the Bronco. (Grill, behind glove box, top of the windshield, right rear quarter.)

You connect the specific switch wire at the distribution point to the next wire that heads in whatever direction you want to power. Additional connection may/can be made at that next wire’s termination point to continue to the desired destination.

We already know that some switches/circuits are rated for various amps, so relays are not (necessarily) needed. But if you did want to exceed the switch’s amp rating, it would be easy to add the relay in the engine bay at the distribution point before you send the power along.
They needed to say exactly this - in the video...
 

ZackDanger

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They needed to say exactly this - in the video...
I suspect this video is just to sell the accessory to people who will end up paying the dealer or someone else to install their lightbars.

Anyone who is used to wiring in accessories will already know this stuff... and anyone who’s looking to learn to install their own will use this as a jumping off point to entice them ( because their is obviously a lot of important info missing).
 

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Java9

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So did I miss something, or if I wanted to run something to the cargo area, I'd use up at least 2 connections which means I can't wire in all 6 switches?
 
 


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