Jimm 8/14/2011P0715 Input/Turbine Speed Sensor Circuit Malfunction = Check circuit / speed sensor
P0730 Incorrect Gear Ratio = means that the PCM detected an incorrect gear ratio because of excessive slip within the transmission.
The first thing to check would be the transmission fluid level. An under-filled transmission could result in insufficient hydraulic line pressure causing the transmission to slip.
Check the electric harness located in the transmission. Follow all the wires since the first part of the harness (on engine) up to the end of the harnness (in the transmmision connector), check if they are not broken or shorted (move and squeeze the cables).
Then check if there are no blown fuses.
If all these looks ok; then you have to open the transmission oil pan and look into the solenoid´s harness, check if they aren´t shortened, loosened, or broken.
tommy 8/31/2011fuse ok wiper not work radio no heater no