Transmission shift issue? Where is the torque converter clutch solenoid located?

The P1740 code in a 2010 Nissan Altima refers to a problem with the torque converter clutch solenoid circuit. Here is the how to change the valve body out and clear the codes once the repair is complete. Check out the images (below). Please let us know what happens.

The unit that is in there is a rebuilt unit and all rebuilt parts so is there a specific part I can buy to put on the valve body?

There might be but our information does not show individual parts, I would contact the dealer to see if they can get parts individually.

Where is the solenoid converter clutch located the solenoid? Is there a possibility the harness is bad or not making a connection good.

The TCC is located on the valve body, and it will have a LT/BLU wire going to it and it is possible the connection is no good which will cause the malfunction. I would check for power at the fuses in the wiring diagrams below, I have included the transmission wiring diagrams so you can see how the system works. You may have an IPDM going out if there is no power at the fuses.

https://www.2carpros.com/articles/how-to-check-a-car-fuse

Check out the images (below). Please let us know what happens.

Where is the torque converter clutch solenoid located?

Can you explain that diagram please where am I supposed to look?

The part I have a red arrow to is the valve body it will be in there.