Quote:
Hi Kevin
How did you connect the wires to the battery? Black to negative? White to positive? If so, you probably attached it backwards. For some unknown reason, black is positive in many trailers. Don't worry, the only damage is probably a fuse someplace.
You can find a wiring diagram for Scamp in the owners manual I've put up on my web site. The diagram may also be found in the Fiberglass RV document center on the left side of your screen.
-- Dan Meyer
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I think Dan has the most probable explanation for your interior lights not working.
If you are missing a brown wire, and instead see a yellow wire, my first impression is that I have had experience with some standard 6 wire cables in that configuration: Red, Yellow, Green, Blue, Black, White. This is a standard color code for cabling the low voltage signal wiring to a digital display truck scale. Your trailer manufacturer, or a previous owner, might have substituted this type since the only difference would be the brown/yellow discrepancy.
BUT, there is also a slight discrepancy in the color code between 7-pin round & 4-pin flat:
color----------4-pin flat--------------7-pin round
white----------ground----------------ground
brown---------running/clearance----right turn/brake
green---------right turn/brake-------running/clearance
yellow---------left turn/brake--------auxillary/back-up
red------------(missing)---------------left turn/brake
blue-----------(missing)---------------brake (controller)
black----------(missing)---------------charge line (House Battery Positive)