Doors look and key-less entry and boot does not work after rain

I attached the wiring diagrams for this but I clearly we have water getting somewhere or at least moisture where it is not supposed to be which is causing this issue.

The only thing that these items have in common are the driver door module. So would suggest starting with testing for voltage from the door module but the problem is this all has to be done when the vehicle is acting up. Due to it not being predicable as to when it will act up, I would suggest tracing these circuits and connectors to look for water intrusion. You will see green wires or basically it will have growth on it that will tell us there was water sitting there. Usually it turns a green or black color but let's just start inspecting these items and go from there. Thanks