4 Pin Trailer Electrical Connection

albutzer

Apr 20, 2022

Hi Everyone,

I have had my bronco big bend for a few weeks - went to hook up my trailer and the trailer lights did not work.
Went to hook up my camper and the lights did not work.
Bought the LED tester and they did not come on, why is there no power to my 4 pin connector.

What I'm I missing? The hitch and connection was dealer installed.

Al

Last edited by a moderator: Apr 20, 2022

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Apr 20, 2022

Dealer installed?
Did they hook up the red wire to your battery under the hood? That's the first thing to look for. Second is, it probably has an inline fuse as well. Check that out too.

Edit:
And after you check those 2, then you have to start ripping out side panels in back to make sure they connected the wiring correctly.

2021 Broncos - BaseSquatch 4dr. Rapid Red V6 Soft Top
Big Bed 4dr. AMB V6 Soft Top Tow (BIL's)
Nitto tires SUCK! You've been warned.

Deano Bronc

Apr 20, 2022

If you paid dealer, take it back and let them deal with it. That's what I would do.

22 Badlands 4 dr, sas, lux, mic, 2.7, cactus gray. Ordered 2/21/22 - Re Order 9/22/2022 for 23 model

Bschurr, Deano Bronc

Apr 20, 2022

albutzer
Hi Everyone,

I have had my bronco big bend for a few weeks - went to hook up my trailer and the trailer lights did not work.
Went to hook up my camper and the lights did not work.
Bought the LED tester and they did not come on, why is there no power to my 4 pin connector.

What I'm I missing? The hitch and connection was dealer installed.

Al

Did they hook up wires to a auxiliary switch

Apr 20, 2022

Michael Ashmore
Did they hook up wires to a auxiliary switch

Also make sure its grounded

Apr 21, 2022

This link may help if you installed it yourself.

Apr 21, 2022

Thanks everyone, it turns out is was a blown fuse - the fuse was originally located behind the back end panel.
They moved the fuse under the hood by the battery so at least if I blow it I can replace it quickly.

Al

Deano Bronc

Apr 21, 2022

albutzer
Thanks everyone, it turns out is was a blown fuse - the fuse was originally located behind the back end panel.
They moved the fuse under the hood by the battery so at least if I blow it I can replace it quickly.

Al

Keep an eye on that, fuse shouldn't be blown before 1st use. Leaves the question, did they install with a bad fuse? Or are one of the wires they spliced, grounding out somewhere popping the fuse?

2021 Broncos - BaseSquatch 4dr. Rapid Red V6 Soft Top
Big Bed 4dr. AMB V6 Soft Top Tow (BIL's)
Nitto tires SUCK! You've been warned.

Michael Ashmore, Deano Bronc

Apr 21, 2022

Will do! Thanks

Michael Ashmore

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