I have had this car 10 years 6 years ago I moved to Las Vegas car is parked in semi-shade does get HOT. End of June all windows BUT drivers side stopped working I bought new master switch from Amazon it was a OEM. Worked 30 days stopped working a few days ago. The first time I thought the switch buttons broke. After the second failure I took the switch apart and used the circuit Bord with a screwdriver and both worked on all the windows, then I put the circuit Bord in the switch box it also worked both in the original and the one that went out in August. I think some thing is tweaking - twisting the circuit Bord. When I assemble the switch box into the trim piece it stops working. I can use a screwdriver on just the switch box but my wife would like a better solution HELP Bruce in Las Vegas

 

Sometimes a cold solder joint will do this or maybe a crack in the circuit board itself that opens when installed may be responsible ,
.I would get another switch and get rid of 2 problems at the same time.