There was evidence of some liquid spilled in the lower left area of the window switch area as the LR switch was at least damp and there was some dried evidence on the front area of the board.
I have the switch assembly out (210 821 1051 or W0133-1598126) and I thoroughly cleaned, dried and inspected it so it at least looks good. Problem is that it doesn't work. I have also tried to run 12V to each of the contacts on the black plug that goes to the board (from its #2 lead) and I get no response from any of the window motors.
At the black plug, I get with power off: #1 gr/wh wire = 0, #2 bl/wh = 12V, #3 br = 0, #4 br/red =4.8v, #5 red/wh = 0, #6 br = 0. With ignition power on, I get 11.7V @ #2, 1.8V @ #3 and 3.2V @ #4

Both the seat motors do not work, the wireless lock/unlock system is also inoperative.

What am I missing here? I hate to buy damn expensive parts for it without knowing if it will help. Much obliged for your help.

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