On the road with 12v charging problem

Arctic Fox TC

I have 12v to the camper from the trucks charging system but the TC's batteries are not getting charged. TC batteries charge with either shore power or generator but not with the vehicle charging system.

I have verified that I do have power (using test light) to the plug mounted on the camper. I even removed the plug and verified power slightly downstream of the plug.

Any thoughts?

Where does the power wire go after it enters the camper?


If I don't respond it's not because I'm ungrateful it's more likely that I have no cell service.

Thanks

Mike