This is a DIY for a 2002 Honda CRV driver side window switch .
Before you determine if you need the main switch you must have a good diagnosis .
Some times it can be the motor if it is let the motor die before you replace any window motor .
If the window goes up and with the other switch but not the drivers switch then that is one outcome .
They call this the main switch because if this fails the other windows won't work correctly from this area .
You need to pull up the switch from the snaps . You do not need to take the door panel off .
Unscrew the screws located on the bottom .
Once you have it off match up the switch and then put it all back .
Windows should be working again .
More DIY @ www.corollacarclub.proboards.com