installed new master switch on wife's v70 wagon.
drivers window still noty working. measured voltage at connection to motor.
13v with swich pulled up. no v when pushed down. could this be because window is all the way down?
where else can i look for cause?

many thanks

 

Did you reverse the leads when trying to measure down?

The motor works on reverse for up and down.

 

seems to me w/o reversing, the only diff would be a negative reading?

 

At the motor plug one wire is hot going one way. Then the other wire is hot going the other way.
The wires switch ground each way to.

So say if you want to put it up (Example) #1 on the plug would be power and #2 would be ground.
Then Down #2 would be power and #1 would be ground.

Could also be a bad window motor.

 

so if you dont reverse the probes, one way would read positive, and with the switch the other way, one would get a negative reading, using a digital multimeter.
i am going out to do some more readings now. however, i seem to remember that i got 13v one way and 0v the other, not -13v.
thanks for your help
cliff

 

Let me know how it goes.

 

does it make sense that there is no voltage when the down switch is hit because the window is all the way down? is there a sensor that cuts the voltage when the windows are at the extremes?

 

tech
found the brushes oin the motor were worn out. swopped brushes from rear right window motor and am back in business.
what are the chances i can find replacement brushes for the motor?

Also, drivers window wont goi all the way up. the front of the windo seems to bind about half way up. how can i adjust this?

thanks
cliff

 

There might be. If you can try bypassing the switch and supply power to the Motor itself and try to put the window up and down.