Thanks for the tips!
I did look at the wires running into the axles, from what I could see (although not that much) the wires looked and felt perfect. This is a 2011 Montana that we picked up in late 2011. We don't even have 6,000 miles on this trailer!
This morning I did take a voltmeter out to the truck and checked the voltage at the plug-in. I get 12.7, 12.8 volts on the signals, the brakes lights and the marker lights. On the "blue" brake pin however I'm only reading 3.5 to 4.5 volts. I tried turning up the power on the controller and nothing happened, no increase in voltage any way. I'm wondering if it's my controller now.
More research I guess.
Dan