Once everything tested OK it was time to put everything back together.
Bumper cover back in place.
Driver side covers back in.
passenger side and center console all back.
Next was time for the coach.
First up was where to mount the controller. Newmars' dash design made this simple as could be. Right beside the instrument cluster is a nice flat spot, directly in my line of sight while driving.
Now for the elusive factory pigtail, that supposedly makes hook up a snap.
Turns out it's right there behind the yellow and white wires. Just to the left of the steering column.
Close up of the pigtail
There is a great many ways to connect to this pigtail. You can buy a harness:
Us Gear Pigtail Harness, Freightliner Chassis
You can by the plug and build your own harness, such this thread:
Trailer Brake Controller
Thanks for finding all the parts RVRandy.
Or just hook up the wires by operation. They're well labeled, after all.
Which is what I did.
The panel-lp and vbatt are unused.Panel-lp comes off of the dash lamps, it works through the dimmer. The vbatt is live 12 volt direct from the batteries, non-switched.
The ING blunt is not actually hooked to the ignition switch.
I will at some point run a trace on this wire to see where it is not hooked up. So it too is not used. Instead I found a unused purple wire under the dash that provided switched 12 volt power.
TRLR_BRK hooks to the controller's blue wire.
BRK-SW hooks to the orange wire.
GND hooks to the black wire.
While this was on the counter somebody forgot to take a photo. I'm not saying who, but it rhymes with OP.
Once plugged back in, there was nothing really to see. Let a lone take a photo of. Looks like a controller on the dash is all.
Now it was show time; test drive.
Hooking up was much easier. No running wires for the lights, nor placing a braking box. Just hook up a pigtail, tow bar, safety cables and a break away cable.
I had my wife run the controls (while stationary) to check pedal movement and make fine adjustment to the cable.
Then off we went. While coasting, with no engine brake on, if I pressed down on the manual control we could feel the Jeep pull against the coach.
When using the engine brake the UTB did not apply the Jeeps brakes. As soon as I applied the coaches brake the UTB applied equal towed brakes.
We did a 40 mile test drive on interstate as well as back roads, so far very impressed.
2 things I did notice:
1 it will not lock up the Jeeps brakes (which I'm OK with).
2 When using the blinkers and stepping on the brake pedal (in coach) the Jeeps lights will stop blinking and go full brake light. It has no effect upon the coaches lights.