89 Voyager power windows not working

[le gordo]

The front power windows don't work from drivers and passenger door switch, the back vent windows do work, so the fuse/breaker is okay. I've taken the drivers door switch out and out of the 6 wires going into the switch the only voltage/power I get is the brown wire. My Haynes manual does not have the wiring diagram for this switch so I can not tell if the switch is working or if it's getting the right voltage. Does anyone have the wiring diagram for this switch? Does anyone know if I can take the switch apart to clean/check it? Is there a relay between the fuse/breaker and the switch? Any help is appreciated.

[RickMN]

Rear windows are powered by fuse 16. Front window are powered by circuit breaker #3. Power comes into the switch on the brown wire. The switch toggles power and ground depending on whether you're moving the window up or down. The black wire is the ground wire. Use a computer safe test light or digital multimeter and connect one lead to the brown wire and the other to the black wire. That will confirm whether you have good ground coming into the switch. If you do, then you have to test whether you have power switching to the motor. The light blue and white wires go to the driver's motor and the pink/white and violet go to the passenger motor. Best way to check is to unplug the connector at the motor and test there so you eliminate a false "voltage drop" reading. With the ground lead of your test light connected to metal ground, operate the switch and check for power on either the light blue or white wire coming down to the driver's motor. Then, toggle the switch and you should see power on the opposite wire. If you don't get any power, you're looking at a bad switch.