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Base bronco no trailer lights after installing hitch kit

26supermatt

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PWillette

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The wiring harness link you posted says it is for LED lights. Did you get the right kit?
 
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26supermatt

26supermatt

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That is a good point. I did select without led in the checkout but will try to contact seller to verify. :) kit 56471
 

Brian_B

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Reading the reviews, looks like a few people have had a DOA module. Power going in, nothing coming out...

Pretty much as long as your tail lights are working, the fuse to the power module is good, and you have 12V going to the module...
 
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26supermatt

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Update:

I rechecked ground wire . Good.

All lights work on trailer when bronco is not running .

Only running lights while Bronco is running.

Flashers, Trun , Stop do not work when Bronco is on.

It’s like once the vehicle is on the computer takes over and doesn’t like whatever is going on .
 

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Brian_B

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The computer does have protection/detection for short circuit and burned out light/open circuit. Although that should be the same regardless of if the vehicle is running or not.

If the tail lights all work fine without the module, but don’t work with the module in any runtime situation - I still think you got a bad module
 

VirginiaHeritage

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I went back to the dealer to have the included (dealer installed) OEM hitch put on. I watched the install and they had to do something to sync the vehicle computer with the new hitch. He said it had to learn it had a hitch and it took a few minutes for this process. Was this part of your install ?
 

Brian_B

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I went back to the dealer to have the included (dealer installed) OEM hitch put on. I watched the install and they had to do something to sync the vehicle computer with the new hitch. He said it had to learn it had a hitch and it took a few minutes for this process. Was this part of your install ?
Most aftermarket ones aren’t going to sync up with the computer - so the Bronco won’t know if there is a trailer or not. Means you lose automatic disengagement of rear parking sensors and things like that.

Basically they are just relays that mirror whatever the taillights are doing and sending that on to the trailer.
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