2000 Town and Country Chrysler What would cause my heater and turn signals to suddenly stop working?

I was driving and all of the sudden my heater stopped blowing  and
my turn signals wouldn't work? This happened at the same time, as if
someone killed the power. When I say heater That includes defrost,
air conditioner (rear and front). the turn signals don't blink on the
outside or on the dash panel. Please help thank you.