TCC Selenoid

[mike o]

I have a 2012 ram 1500 5.7 i have p0740 code which is TCC selenoid code. My transmission seems to shift fine. I change my transmission fluid on regular basis. So fluid and fluid levels are good. Any ideas from what i can see doesn't seem to have shift selenoid. If i look up a shift selenoid it shows the transmission control unit thats under the valve body. Not sure if i need that or torque converter or something else. Truck has 240,000

 

[express2014]

My truck had p0740 code every month. I did a fluid and filter for the transmission with no effect. When I replaced the start battery the p0740 code went away.