Damon Challenger coach wiring question

[Craddock]

I have an older (2001) Damon Challenger 329. Recently all of the ceiling lights just quit working. All other lights work. I've checked every fuse in the entire vehicle (coach and chassis) and the confirmed that the ceiling light switch next to the entry steps works.

I'm fairly competent in electrical and technical work but I can't find a place to start on this. I've pulled each light and found only two wires at every receptacle. No bridged wiring so there must be someplace where all these wires are fanned out but to my knowledge a wiring plan or wiring schematic does not exist.

Anyone know where this wiring fans out to the individual receptacles. I thought I'd start there.

Thanks much! I'm new to the forum and searched for any info that might help but didn't run across anything. I hope I'm doing this right

[clyon51]

Not familiar with your coach, but if you are sure all 12v fuses are good, I would go after the ground. All 12v lighting grounds should come into the BCC (Battery Control Center) and tie into the grounding block, so check and tighten them. Hopefully you don't have mice in your area, they have taken several of my circuits out.

[Shellback1]

X2 on the grounds.

[Craddock]

Thanks guys ... it was indeed the ground. I certainly appreciate the tip.

Larry Craddock

[lyost]

what ground did you find that was loose? I have the same coach, and i am having a similar problem. I have at least three 12v fixtures that are no longer working - Radio in the master room, antenna booster, and the 12v charging port under the dash in front of the passenger captain chair. I assume these are all tied together.
I have checked the fuses in the breaker box in the master. Are there additional fuses for the 12V fixtures?
Thanks in advance for your help.