Blinker/Electrical problem

When I step on the brakes the blinkers stop working. I noticed the blinker lights on the dash would illuminate slightly when the brakes were applied. Today they stopped working when brakes are applied. Is this the multifunction switch? or something else? I have figured out most of the other electrical issues but I'm not sure about this one.

Yesterday I finally had the time to look at the problem. Long story short it was a bad bulb. It was shorted internally and energizing the blinker side sometimes. Never seen that before.