2002 Ford Taurus codes P0743 P0750 P0755 P0760

I pulled these codes yesterday. They're electrical codes for the tcc solenoid and the shift solenoids. I was given this car because the previous owner didn't want to put any money into fixing it. I had to reconnect and solder many wires in the main harness coming out of the firewall on the driver side (inner fender) as the previous owner had lost a front tire and proceeded to drive until the rim itself drug down the bumper, inner fender and wiring harness finally bringing the car to a halt. After first connecting the wires with just butt connectors to make sure it would still function, the car started ran shifted perfect but has these codes. I went back today and checked for any stretched or bare wires, cut the butt connectors off and soldered everything back together. After clearing the codes, I start the engine and once again the trans ! Light is blinking and the codes come right back up without shifting out of park. Any Ideas?