2013 Tundra: Does anybody know the location of the main window power relay

For more details about a problem I have having on my 2013 Tundra's windows, please refer to this thread:
https://www.tundras.com/threads/que...-open-close-master-switch-2013-tundra.158881/

Anyway, I have been looking for the main window Power Relay that should be located under the dash in front of the driver's seat (between the steering column and where the Main Body ECU), but I haven't been successful.

This relay energizes when the ignition key is turned to ACC, or when turned to start the engine. The 7.5-Amp power to energize the power window relay is switched ON by the Main Body ECU when the ignition key is turned to either ACC or when the engine is started. When the power window relay energizes, it closes the contact that allows the 30-Amp number 1 power to be distributed to each of the power window switches (the master switch cluster, and also each of the window switches for the rest of the windows).

The idea that I have is two-fold:

a. I need to check the main power window relay to make sure it receives the 7.5A from the ECU, and also to make sure that the grounds connection or bonding is good.

b. Also, as soon as I have the time this or next week I will remove the driver's door panel to check the power window regulator motor since it was this window that fail to open/close first. None of the windows are working as they should. I can open each, but very slowly, and then each gets stuck in place and I have to grab the glass and push it up a little at a time while my wife lifts the window open/lose switch.

c. The next step-if I can't troubleshoot the problem-if to let the mechanic at the dealership take a look at it. Summers are too short in the interior of Alaska, and I have been wasting too much time trying to figure this problem.