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If you have your brakes activating in reverse you may have your brake signal shorted to the reverse light pin. All 7-ways have a reverse light connection but I can't remember the pin. With KOEO try putting into reverse and listening for the magnets at each wheel. 4 brakes will draw 10-12 amps in my experience so I'm not sure if that would pop your reverse light fuse or not. Worth a try!
Be aware that there are two versions of 7-way plug wiring. The colors of wires on the trailer also changed in the early 2000's.
Every brake controller I've used (including the Tow Command in my '06) will light the brake lights when the manual button is pushed over. The lights on the truck and trailer both light up. My old truck had an add-on box and it would light the brake lights with the key off if you slide the manual button.
2006 F350 PSD Lariat 4x4 SRW, 4" MBRP straight pipe, SCT X3 w/ ID Tunes, Edge Insight CTS, Sinister Coolant Filter, High Idle, Red
2013 F250 6.2L 4x4 (work truck) Factory E-locker, Warn Trans4mer M12000
1995 Mustang Cobra 5.0, Heads, intake, 65mm TB, headers, exhaust, 3.73s, Cobra Rs, 160k trouble-free miles, Red
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'42 International K1 pickup, Green Diamond I6, 4 on floor, Red