It's my first post on the forum but I have been using the information here a lot since I bought a 2007 RX 350 imported from USA to Finland.
I noticed some weeks ago that the rear passenger side window would not go down from the controls on the drivers door but work form it's own door control button. Today I noticed the car has not blinked the turn signals once I locked it and after checking all doors that rear passenger side door was not locked.
Looks like I'm loosing some electrical functionalities only on that door what points me to probably an electrical connector loose or something similar.
Has anyone had a similar problem? Does anyone has a diagram, pictures or instructions to where the connectors for the rear doors are located and can be accessed?

Any help would be highly appreciated.

 

My guess is that the master power window switch in the driver's door is bad since things work from the door itself. About the only way you can test it is to replace it. If you are going to try to replace the master switch, you should be aware that Japan assembled cars and North American cars have different switches,

I had to replace my master switch (different problem) and tried the non-Lexus switches because of the price.. They did not work right. After rolling the window down. I had to pull on the switch twice to make the window go up. I tried 4 different switches from 4 different stores. The stores all claimed the cars all used the same switch, but the switches all had the Japanese part number.

To tell if you have a Japan assembled car or a North American assembled car, look at the VIN. If it starts with a J then you have a Japanese car. If the VIN starts with a 2 then you have a Canadian (North American) car. The part number for the Japanese car is 84040-48140, the part number for the North American car is 84040-0E011.

If the car still has the original master switch, the switch will have a paper tag glued to it with the part number. The master switch will come out of the door without removing the door panel.