I drove to work this morning and it worked fine, no problems. When I left work, the passenger window would not respond to either the passenger door switch or the drivers door master switch. All the other windows work fine. There seems to be power at the switches on the blue/red wire. So I assume its getting power. Do these window motors die instantaneously? What else should I look at? Motor, relay, ...

 

Update: I went out this morning and it now works again. So it wont work when in the heat of the day. Is that a fault in the motor?

 

I'd say it is the switch. My mother's old Camry had the problem on her driver's side. The contacts had corroded with time.

 

My 02 corolla did this same thing worked when cold but not in the heat. Replaced the motors and it fixed it. I would pull the door panel and jumper the motor before you replace them though they are expensive