I ran a battery drain test on my 2004 S60 and in the process the rear windows stopped working. I connected a multi-meter in series and removed fuses to check for any impact. I found a drain on interior lights even when they were off. I simply removed the 30A fuse for the rear windows and replaced it. Now neither windows will go up from the front or rear switch. The rear window cut off LED works for the driver but the switch doesn't work. What have I done???