Chrysler Repair: Help with code P0755!!!, solenoid pack, dodge avenger

Question
i have a 08 dodge avenger se 2.4l.. a week ago the car
going into second gear (Limp in mode).  i plugged it to the computer
and codes p0755, p0700 came up.
what options are there?
Should i need to replace the complete solenoid pack?
how can i check this code?
i had tested replacing with another new solenoid pack and the issue still go on;
Does the computer can be damaged?  
Thank you and i hope you can answer me at soon possible!

Answer
The solenoid pack may have failed on your vehicle. I can send you the diagnostic procedures, just send a tour e-mal address, using the Private button. You'll need a Digital multimeter, 12v test light and a few jumper wires to complete the test. If you don't have access to these tools I'd recommend that you take it to a service center that can acurately diagnose your problem.