Code p1753 sometimes the d light will flash?

The P0700 is just a placeholder code to tell the scan tool that there is a code(s) stored for the transmission. The D will flash when a fault is set concerning the transmission. The P0740 code would set the P0700, then if that is repaired but you now have the P1753 which is actually a code referencing the same solenoid, and pretty much the same problem. I've attached the testing process. Follow that and see what you find. When you tested earlier, what was the transmission line pressure? Low pressure could also be related to this code.

Would not bolting down the ground bracket back onto the transmission cause this code p1753 because I replaced the torque converter lock up solenoid, which was the P0740 and it’s the same part but for some reason, the bracket on the harness will not go back onto the Transmission or fit in place properly. I’m not sure why this is being that. It’s the same part. Maybe you could have any input onto how this bracket fits or which way it goes back onto the Transmission.

Is there another solenoid that is similar to the lockup solenoid or is it a shift solenoid because I replaced what was from my knowledge on top of transmission the lockup solenoid is located or am I wrong because I believe it sits under the distributor