Ok, Here is my problem. On the passenger window control I can roll the window down, but not up. The master control on the passenger window has no response, but the driver's window works fine.I replaced the master window switch hoping that it would fix my problem with no passenger window response. Same deal with the new switch. Last week I had a body shop even replace the passenger window motor, which led to the master switch change. They said that both motors work fine. Go ahead and figure that one out.

This message has been edited. Last edited by: Pupralover89,

Im willin to bet its the contacts in the switches that have corroded over time. Just need to be taken apart and cleaned.

Test the Blue wire with the yellow stripe. It runs all the way to the Master window switch and is the "up" signal line for a passenger's window switch... it's used for the MASTER switch to move the passenger window "down".

http://www.cygnusx1.net/Supra/Library/TEWD/MK3/manual.aspx?S=Main&P=094

I'm not entirely sure I'm following precisely what tthe problem is. So if I misunderstand please try explaining differently.

If that's the extent of your testing and troubleshooting skills, then definitely take it to a shop.