P0740 - TCC Enable Solenoid Circuit Electrical...torque converter circuit.
P0753 - 1-2 Shift Solenoid Circuit Electrical...1-2 shift solenoid circuit.
P0785 - 3-2 Shift Solenoid Circuit Electrical....3-2 shift solenoid circuit.
P0787 - Shift/Timing Solenoid Low....computer's not seeing a shift after it sends shift command.
P0973 - PCM detects an open or short to ground in the 1-2 SS valve circuit...computer sees shift solenoid circuit trouble.
P1860 - TCC PWM Solenoid Circuit Electrical...torque converter apply circuit.
All these point to the 20 wire pigtail connector on the passenger side of the transmission. I've wiggled this connector without raising the car by going under the passenger side at the front door, reached and found the connector and wiggled it a few seconds. It's mounted vertically down on the side of the trans that sticks out and makes a horizonal plane or shelf.
Has this car been in a wreck or took a violent ride off-road?