I have an electrical short/leak somewhere in my RV - a 2015 Jayco 34.5BHTS 5th wheel. I noticed this when I was unable to power a 12v backup camera system wired into my top-middle rear marker light. The camera had worked previously, but stopped working between trips. I've had the camera tested on a 12v generator and it works perfectly. I've replaced one of the incandescent marker lights which failed with an LED light and it works fine and I've checked the connections multiple times - they're good. My lights, outlets, and appliances all work fine, but measuring the voltage coming off ALL of the marker lights, I only am reading 9.3v. Interior lights are all still at 12v. I have a full 12v coming off the truck at the 7-pin and at the end of the umbilical cord where it connects to the RV body, but from there, I have a short someplace. I have checked and redone all the wire connections in the umbilical cord and those I have made from the splice into the marker lights as well as two lights that went bad inside that were replaced. If I test the ohms (resistance) to ground I am finding a circuit (leak) between the hot (white) wire and frame which shouldn't be. I am a basic electrical guy, can fix and wire lights, simple circuits, etc, but this is over my head.
Why don't I just take it to the dealer? It IS still under warranty (2 year,) but I am leaving for a trip in 4 weeks and the wait to get into RV service is 6-8 weeks, so I can't wait for them. Fortunately, all the exterior lights work, so I'm legal, but because the voltage is low, I can't power my back-up camera (I'm praying for pull-thru's!) I'm also worried that the current leak might become a bigger problem and lead to marker light failure, so I'd like to get it fixed if I can. What say you?