No power from battery but do have power from shore and from tow vehicle

[Patrick Monan]

Looking for some guidance from RVers smarter than me. My 2006 Fleetwood Prowler has a new 12v battery (fully charged). The battery will operate the slide-out but not any of the 12v lights. When I plug into 110V then everything works. When I plug in the tow vehicle, again the 12v lights light up. What am I missing? I cleaned the ground connections and the connection to the trailer battery. Frustrating! I don't usually camp without shore power but going this coming weekend and need to get this fixed. Any help or suggestions is most appreciated!!!!!

I know the trailer battery is getting power to the slide out. Why not anything else?

Patrick

 

[C Nash]

Have you had the battery out? If the lights work when plugged up they are working off the converter. Sounds like you are missing a wire from Battery. Time to drag out the VOM and start tracing. Good luck