The codes given by the cars computer TCM (Transmission Control Module) were 02 lock-up control solenoid B problem, 07 shift solenoid 'A' open or short, and 15 mainshaft speed snsr open or short. I got those 3 codes and i dont know what i should do or what is the problem. If any one has an idea what this things mean please let me know and what should i do...thanks

 

You can test the solenoids by appling power and listen for them to click, you can remove the solenoids and sensors and check to see if they are full of crud. Check the ground at the T-stat housing; it is the computer ground. it is really strange to have all these codes at the same time. You might have bad contamination in the trans, or a bad TCM. If the sensors and solenoids are full of crud, you can try changing the trans fluid a few times in a couple days time to flush out the crap.