Not in the '97...just looked.
Good Info on Brake Controller: Found My Pig Tail for Factory Wiring
Last week I posted a note on locating the factory brake controller pig tail on my 2012 Explorer. Well after searching for it I finally decided to go to the local Ford Dealer and ask. They were sympathetic and the Service Advisor looked at my vehicle and said "I think it is located in the center console stack where the radio is just behind the left hand panel. The dealer was booked up and couldn't assign a tech to find it. I ask him if there was a local place that could help me. He send me to H&H Truck and Accessories in Pelham, Alabama as they install hitches, controller, etc.
I went there and asked if they could find the pig tail for me. One of their mechanics found it in about 2 minutes. It was located above the parking brake on the left of the drivers side. Not where the Ford dealer said.
So for all of those who have a 2012 Explorer with the factory towing package, the pig tail is located above the parking brake. H&H didn't even have to remove the panel below the steering wheel or the panel on the left side where the headlight control is located. He just reached up and found it. Guess he has done this several times. It took only a minute to plug in the wiring harness (Teknosha p/n 3035-P) to the female plug in the vehicle and the to the P3 controller which I mounted just forward of the drivers right knee, where many have mounted brake controllers.
Now I am ready to hitch up my camper and set all the options on the P3 and enjoy safe trailering.
Joe