I have an early 90's Starcraft pop up camper. I just went to hook it up to the van and the travel lights (running, brakes, directionals) don't work at all. All lights worked when the camper was stored last...
When you say that you have power up to the camper, do you mean power through the pigtail/wiring harness with the tow vehicle connected?
The trailer harness wiring is the only way to power these exterior camper lights, i.e., through your vehicle. There are no fuses within the trailer for the exterior lights. These lights are only fused from the tow vehicle's fuse box. So either the connections in the trailer harness are open, or they're open at the tow vehicle connection.
Do the turn signals work on the tow vehicle? If yes, then the only other thing to check is the turn signal flasher in your tow vehicle. A heavy duty flasher is recommended.
From the trailer, yellow, white, brown, red, green, is connected to your vehicle backup, ground (frame), right turn signal, left turn signal, running lights, respectively.
The trailer's blue wire is for an electric brake connection to your vehicle.
The trailer's small black wire should connect to the vehicle's hot, 12V lead for the interior lights. The large black wire at the trailer hitch is for charging an RV battery on your trailer, if it's supplied with one. Of all of these wires, only the large, 12 gauge, black wire goes to the 25 amp converter, which is fused, for the inside lights of the camper.
I hope this helps.
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