TCC solenoid location please?

Remove the case side cover. its #334

No one here has listed a symptom or the problem that is being solved. When you piggyback on someone else's question, none of the other experts are going to see it or have a chance to reply. We see it on the list as the previous conversation between two people is just continuing. That does you a disservice.

You need to start a new question, and PLEASE list the engine size and mileage! It's unbelievable how many people keep those things secret.

The torque converter clutch is built into the torque converter. That is what couples the engine to the transmission. The diagram above is just showing the valve that controls the clutch. The torque converter clutch can not be serviced or repaired. If there's a problem with it, which is very rare, the entire torque converter must be replaced. It is a sealed assembly. Replacing it requires the transmission to be removed. That is definitely not a do-it-yourselfer job.