Brake light fuse(s)

[GunninGopher]

So I've looked at the fuse assignments for both the under the hood and under the steering wheel fuse boxes. Here is my resource:
https://fuse-box.info/ford/ford-bronco-2021-fuses

I cannot locate the one for the rear brake lights. I've been getting jerked around trying to install a Curt wiring harness and now all of a sudden the right brake light is out. In my troubleshooting I'd like to check the fuse, but I can't figure out which one it is.

Sponsored

 

[PepSek]

Hello,

Did you ever figure this out? I was having issues with my upfitter switches so I took it into Ford and I spent $400 for them to tell me where my fuse box was and after I left I discovered that my brake lights only work half of the time

 

[AM1217]

So I've looked at the fuse assignments for both the under the hood and under the steering wheel fuse boxes. Here is my resource:
https://fuse-box.info/ford/ford-bronco-2021-fuses

I cannot locate the one for the rear brake lights. I've been getting jerked around trying to install a Curt wiring harness and now all of a sudden the right brake light is out. In my troubleshooting I'd like to check the fuse, but I can't figure out which one it is.

so did you find the fuse ? and what was the fix ? I have the same issue.

 

[Ducati1098]

so did you find the fuse ? and what was the fix ? I have the same issue.

Brake lights don’t have a fuse. They use a FET internal to the BCM.

 

[Dialtone]

Brake lights don’t have a fuse. They use a FET internal to the BCM.

Well then. Not swapping that out easily.

 

[AM1217]

Brake lights don’t have a fuse. They use a FET internal to the BCM.

ok thanks so something is shorting out

 

[Ducati1098]

ok thanks so something is shorting out

Hard to say, but yes that is a possibility.

 

[GunninGopher]

so did you find the fuse ? and what was the fix ? I have the same issue.

My problem ended up being the harness plugs really couldn't stand much wiggling. I had to re-seat a few of the wires. It's been a couple years so I don't recall exactly what it was, other than a pain in the ass that would not have been had Curt built the harness correctly and/or actually believed me when I told them there was a problem.

Sponsored