Window Motor Troubleshoot Mystery

Before I tear into it , does anyone have insight into why the passenger door window just clicks inside the door sometimes and wont go up ?
it goes down just fine.
is there a tiny relay inside the door clicking ?
maybe something physically binding or jamming the mechanism, momentarily overheating the relay ?
At first I thought it was the left door master switch, Right door switch works just fine.
why would it only click and malfunction from the master door switch but not the right door switch ,
then recently noticed it clicks inside the door sometimes but doesn't move when triggered from the left door master switch
I started to throw a masterswitch at it until I realized it is clicking in the door from the master switch and they are xtremely rare, $300+ from Toyota and no aftermarket options because it is a 2 door ext cab, so thats a heavy throw
I took the switch apart down to the circuit board and found that the trigger swings a lever that moves a brass plate slide switch back and forth that is mounted to the circuit board, forward for up back down , I could find no obvious damage or wear so just cleaned it with electrical cleaner spray and reassembled , no change, then I noticed the clicking from the passenger door when it wont go up, if I keep trying it will go up. It works fine evry time using the passenger door switch
could it be insufficient ground from the master switch causing the relay inside the door to click but not trigger fully
or maybe separate relays, one for each door switch ? which would make sense to enable a way to child lock the passenger door window

 

There are no relays involved in the power window system other than the P/W Relay that powers up the fuses to all the switches and auto down relay in the master switch if you have auto down but that's only for the driver's front window.

Everything else is just mechanical switches and wires, pretty easy to check with a test light.

 

perfect thanks
this points me back to the switch ,
but first I will look in the door for bad contacts or grounds and get out the fluke
my guess is it is probably barely making contact from corrosion on the brass slider
too bad I cant take it apart without unsoldering it
something baffling on the wiring diagram is the ground source
if it is conventional switched positive power out
it only shows a ground entering the master switch circuit board
or should I assume the window motor is grounded and they just failed to mention that

 

Can you show me what you mean?
I'm not sure I follow, when you say master switch your referring to the switch on the Driver's door correct?

 

I think I see it in the wire diagram now, the right door switch is separated by a diode, so it will work independent of the left master switch , which actually looks like there could be ground triggered relay in the IC of the left side Master Switch because the left switch is connected to ground, right switch connects positive , left switch connects ground to trigger a relay in the IC

 

yes
the wire diagram shows the drivers side switch connected to ground through the IC
right side shows it connecting positive direct to window motor

 

There's no relays or IC involved in the operation of the passenger window, when the driver's window switch is at rest both wires going from it to the passeger switch are connected to ground via the window lock switch.

See below, I drew the ground leg of the switch in Blue and the power leg in Red. When the switch is at rest the wires are connected to ground, when you press the switch it connects one leg to the positive rail and the other remains connected to the ground rail.

 

great thanks for the clarification,
those ground symbols by the resistor symbols in the wires to the switch threw me off