1990 Jeep Cherokee no running lights and no dash lights.

wow where to star. i just went through the same problem when i bought my cherokee. easiest one to start of course is the fuses. if its not those check the (headlamp relay) dunno if thats what its actually called but stock it should be blue. just follow the wires from the headlamp switch and youll find it. if all else fails check for melted/grounding wires. hope it helps