brake lights on 1998 Isuzu Oasis

brake lights stay on all the time. could this be the brake light switch? If so where is it located?

1 answer
Its located on the upper back of your brake pedal http://partimages.genpt.com/largeimages/276149.jpg But pay attention to the threaded adjustment when you reinstall as the pedal has to release the button when your foot is off the pedal