The power window on my 360 passenger side only goes down but not up. The micro switch will make it dip down but not go up? I switched the LH and RH switches. Still the same result. By giving the motor manual power it still goes up.
Wait, are you saying that only the "pre drop" function isn't doing correct or the whole glass isn't going fully up and down? if it is the former, it is adjustment of the switch.
My window only goes down but not up. I checked the switches they're all good per the multimeter. Manually giving the motor power it goes up. Ordered a "newer" ECU with 90 day warranty for the windows will report back this weekend.
There's a power connector between the door jamb. Water corrosion is common within the electrical connection pins.