09 f 150 headed seats w/python 5702p

Theres a module under the seat with 3 plugs. Ive unplug one of them and the heated seats did not work so i figure the signal should be coming out of that plug theres 2 wires one for the let seat and one for the right. They both give me 12V when pressing on the heated seat switch. So i try making a jumper with a 10amp fuse inline just incase. One end to the wire of the module and the other one to 12v source. I get nothing. will not turn on. Let or right. Then i found another 2 wires that read 7.56 when pressing the switch but then it jumps to 5.126 in my meter. All this is under the seat.