my car got some error code, and the Transmission control module (unit) got problem, where is it located?

I read some forum, some guy said it is located under the front passager's seat carpet, I putted over the edge of the carpet, but not able to find it. is it in deeper location or some place else?

please share me some hint. if there is any images to show it, it will be great.

thanks for any support!

 

after more research, i think my car is CVT ( continous variable transmission) , the tcm/tcu should be inside of the transmission, need to open it to replace it.