2019 3500 HO SRW CCSB...no trailer brake lights thru 7 pin

[Kewlkatdady]

Hi all...
As title says, I've lost brake light signal to the trailers 7 pin....
I've checked the fuse and it's good. The next spot is the Trailer Tow Park Relay in the power distribution box...
Anyone have an idea where this relay is... I cannot find it.

 

[superjoe83]

I'm pretty certain that the trailer light relays are integrated in the fuse box and non serviceable, are you sure that you checked all of the fuses?