First my low beams stopped working then after a month my high beams stopped working also. Replaced the light switch on the dash and still doesn't work. What do I try next???

 

Have you checked the bulbs? Light switches do commonly break apart in the dash and prevent lights from working - did yours fall apart when you took it out? do the parking lights all work? Is there power at fuses 19 and 20 for the high beams and 21 and 22 for the low beams? There are two headlamp related relays in the fusebox that could be the problem also.

 

Here's a wiring diagram 3/2 is the headlamp switch, 2/1 is the headlamp relay and 3/3 is the turn signal switch