Originally Posted by bush
i tried the fuse in the 2 top pins and all i got was the tail lights??
Assuming you picked the correct pins in the socket:
You could also have a "ground" problem on your trailer's lighting since you have tail lights (not stop lights) and no running lights.
Normally, your exterior "traveling" light bulbs get their ground and the power to light them through the tow vehicle (from pins on the tow vehicle's socket and the ground pin which is connected to the camper's frame on the camper side and the truck's frame on the other).
You are not using that path since you are using the camper's 12VDC system to light your running lights by shunting through the fuse.
The camper's 12VDC has to make it through the running lights and back to the camper's battery through the frame of the camper. If that connection is corroded (for the running lights), that MIGHT cause only part of the lights to work.
Lou and Laura with Bella - German Short Hair Pointer
2008 GMC Sierra 2500HD Crewcab SB Allison Duramax
2010 Flagstaff 8526RLWS - Superglide 3300
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