The green wire at the stop light switch under the dash should have 12V on it all the time, independent of the ign switch position. There should also be 12V available at the fuse box for fuse #4 all the time. Fuse 4 gets unswitched 12V from the white wire, then crosses the fuse and should go right to the switch. If you've got 12V at the fuse, but nothing at the switch, it's a connector problem bettween the fuse box and the switch. You can check by putting 12V on the switch and pressing the pedal. You should have brake lights. Jim