1-2 shift issue

when I put it in D look like it start in 3rd shift, but if I move it manually to 1 OR 2 it works fine. I changed filter and fluid but problem still there. I went to autozone and they gave me these codes:

-. P0753, 1-2 shift solenoid valve performance
-. P0785, Transmission 3-2 shift solenoid
-. P1860, TCC PWM solenoid electrical fault
-. P0758, 2-3 shift solenoid valve performance
-. P0740, Torque (http://www.automotiveforums.com/vbulletin/#) Converter clutch (TCC) enable circuit

I read in another thread that cause could be the ignition switch because on blazers 97 it is a common problem on some of the codes causes, http://www.automotivehelper.com/topic633087.htm (http://www.automotivehelper.com/topic633087.htm) AND also the key does not turn to release position, I can take it out or put it back and turn on the car but when I try to turn it to release position it stuck before reach it


I have blazer 97 2wd.

Your trouble does sound like it could be a the ignition switch. That little black box is the cause of alot of head ackes. You mite find this link very helpful: Good Luck....
http://www.automotiveforums.com/vbulletin/showthread.php?t=287636&highlight=ignition+switch