Not sure if yours is the same but the 7 pin black rubber covered cable on mine goes to a junction box at the front of the RV. At that point the wires go out of the box to the brakes, running lights, Stop/turn/brake lights and12 volt charging system. I would look there first to see it the wiring was done correctly.
I can post a picture of mine if you need it on my 195RB.
Just follow that rubber electric cable along the frame till it hits the trailer body and you should find the junction box.
__________________
2017 SLX 195RB
2021 Jeep Grand Cherokee Summit L 5.7L V8
Andersen WDH hitch, Renogy 100 AH Lithium &
200 Watts solar panels from Renogy
Prev. '14 Jeep Grand Cherokee Overland, gas 3.6 V6
|