Do you have the 2006 Service Manual (2006-LX-SM.pdf)? Section 8W will give you the complete wiring diagrams. It is 325Mb in size. If you do you can troubleshoot the window wiring. I had a 2006 LX and still have the manual.
If not, do a Google search for 2006-LX-SM.pdf
One common problem is a broken wire, or wires, in the cable that runs from the body to the front doors.
Bob.