I have an '87 GXL

My brake/hazard/blinkers are not working and i'm stumped

Things checked/replaced:

Headlight switch
Flasher CPU
checked tail light harnesses

Any other ideas on what could control all three of those lights and be malfunctioning? I need to get this fixed ASAP.

If you have a positive answer please text me, as im not on here very often on weekends. 971-219-9714

Thanks in advance