Does anyone have a tutorial video or photos for the aux switch wire locations for 2025 Bronco Sport

[jonnyb]

AUX1 (30A) is 18AWG. I've measured. The one you are showing is close to 21AWG. I measured the diameter.

Ford can get away with it because of the short wiring and 105c rated wiring.

AUX1 can go 15-20A continuously if the wire is short, if you need a long run use thicker wire at least to prevent voltage drop. I would go minimum 14 awg.

For ditch light normally around 50-60w each it's fine. But don't go near 10A continuous load, more like 6-7A max!

Thanks for the clarification -- I'm far more experienced wiring houses than automobiles so tend to be very cautious with load. The video link a couple of pages previous also finally worked for me and yes it does look like the yellow AUX 1 wire is significantly thicker. Looks like I will be peeling back the wheel well cover to connect my small front light bar (10 amps) directly to it and not having to mess around with relays. Ditch lights are 3 amps so should work as is. However if I put a compressor in there will definitely need to still be a relay regardless of which AUX I use.

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[Ziggydog]

maybe this is Ford’s reasoning to label Aux 1 and Aux 2-4 as they did:

Unfortunately no way to confirm the following is directly applicable to the 2025 Bronco Sport Aux switches

1. All 4 Aux Wires Are Signal Wires

• Their only job is to pass a 12V logic-level signal when a switch is pressed.
• This signal is used to energize a relay coil — which draws maybe 100–200 mA, not 10–30A.

2. The “30A” Rating Refers to the Underhood Circuit

• In the fuse panel, Ford provides a 30A fuse & relay position for AUX 1.
• If you run new 10 or 12 AWG wiring from that fuse location to your accessory, you can safely draw 30A — but you must bypass the 0.35 mm² wire.
• Ford assumes the installer understands the need to route heavier wire for high-current applications

Dude, I found the 30A fuse for Aux 1. Do you know where the relay is located? I can't find it. Thanks!

 

[ELCouz]

Dude, I found the 30A fuse for Aux 1. Do you know where the relay is located? I can't find it. Thanks!

its not serviceable its under the relays in the big fuse box in the engine bay

 

[Dude]

its not serviceable its under the relays in the big fuse box in the engine bay

Do you know if the 4 relays are at least visible by pulling the big fuse box cover in the engine bay?

 

[ELCouz]

Do you know if the 4 relays are at least visible by pulling the big fuse box cover in the engine bay?

I can't check the fusebox exploded view right now but I am pretty sure its under the first stack in the fuse box.

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