I dont know for sure, But I would try to disconnect the battery again but turn on something (lights) to use any "stored energy" in the wires, wait 15 minute (or more?) then reconnect.
Otherwise I dont have a clue but perhaps someone else will chime in.
Is "FB" some of "FORD" forum?
2017 Axis / 25.4: Big Foot Levelers, Aims 1200 Watt inverter, Ceramic Window Tint, Full River AGM 6V batteries, Front Hellwig Sway bar / Rear Track Arm, Safe T Plus Steering Stabilizer, PD 4655 converter, Hard Wired Surge Guard, WEboost + WiFi Ranger, LED Headlights/Driving lights, TPMS, Surge tank, Tornado flush, Viair Compressor