1. No power (blown fuse) 2. Defective switch 3. Defective motor
There are a few reasons why the power windows on a 1975 Corvette won't work. A few of these would be a wiring issue, a motor issue or the fuse is blown.
bad switch or contacts
what would cause all power windows to only work once in awhile and defroster to go out on a 1997 dodge intrepid
Because the one that does not work. is broke.
both my rear power windows does not work in my 2002 ford explorer, why?
The generator or the alternator
On a laptop with battery power it will work.
There may be a fuse blown if the power vent windows don't work on a 1999 Dodge Caravan. If the problem isn't the fuse, the motor in the power windows may need to be replaced.
If none of them are working then you could have a master switch or relay defective.
Cause the window motor is out
the relay switch has gone bad or the motor is burnt out
Because the master control on the drivers door has separate areas for all windows. Start by checking power feeds at the drivers door switch.