I have a Volvo 940 wagon, 1994 made for the US. Last night the driver's window stopping rolling up when I hit the switch, but it does roll down. I pulled out the switch box, and tried connecting the driver's window wires to the other windows' switches on the drivers controls (it has a switch for each door on the drivers side), but it still won't go up (I didn't bother to test if it still went down).
One interesting thing, maybe a red herring, is if I connect the passenger windows wires to the drivers side switch it won't roll up either. This happens using that switch and the switch on the passenger door. If I connect the passenger wires to a rear window switch there is no issue.
I was hoping I could purchase a new switch, but the fact that switching the driver's wires to a different switch doesn't work makes me wonder if a new switch will work. Though the fact the switch doesn't work with the passenger door either gives me a little hope. Perhaps the switch for the driver's window is unique.
Any ideas on a cause and fix?
(I haven't been able to disassemble the housing for the switches, but have only removed the plastic that holds the wires in place. If I need to remove the switch, which I assume will be necessary, pointers on doing this will help.)