Most likely your combination headlight and turn signal switch is bad.
Probably a bad headlight switch. Also may be the power feed wire for the headlight switch. Check both.
probably a faulty headlight switch, or you have a bare wire somewhere. My 92 Lesaber is made so the headlights come on automaticaly or you can turn them on with a headlight switch.
headlight switch is bad
it's your headlight switch
Keep messing with the headlight switch, the dome light should come on depending on the car model.
you pull the headlight switch towards you to turn on the foglamps - the indicator light will come on
Turn your headlight switch so your low beam headlights come on and then pull the switch towards you
Switch on the headlights. Hit the windshield washer stalk, wipers and wash will come on, as will the headlight wash.
check your fuses
DIMMER SWITCH FAILURE.
its really a heavy duty switch that is told to come on or turn off by some other signal eg your existing headlight switch if you dont use one you will burnout the headlight wiring