Brake lights working but Prodigy says not connected

[aubiexx]

I posted earlier about my 69 Airstream Overlander and my TV is a 99 2500 Suburban. I have found that the brake controller to be odd about working properly and am trying to find out if the problem is.

Based on forum recommendations I swapped my draw tite activator 2 for a Prodigy 2.

This afternoon I installed it. The trailer brake lights seem to be working and I can hear a noise from the rear passenger wheel on the trailer like it's engaging the brake.

The Prodigy shows two dots indicating not connected. Any ideas?

Is it possible that I have a bad connection on the pig tail wires going to the trailer or my vehicle?

[grayhackle]

I had a similar problem this spring when I hooked up. Problem was the wire from the Prodigy to the Dodge connector. I unplugged and replugged and it worked fine. Hope it is that easy for you. I take my prodigy out for the winter. If the same thing happens next spring, I plan on cleaning pins and using some dielectric grease.

[ScottG]

Not doubting what you say but parts are confounding.
If the P2 shows ". ." then it is not sending any current to the brakes. So it doesn't make sense that you hear anything at one of the wheels.
I would confirm the brake wires continuity to the 7 pin. Then do the same on the trailer side and confirm continuity from the 7 pin to each of the brakes.
Some place you have an open connection at either the TV or the TT. Make sure the 7 pin is clean and dry inside.