The headlamp switch controls the power to the dimmer switch and then on to the headlights.The headlamp switch controls the power to the dimmer switch and then on to the headlights.
Look for switch on floor
Dimmer switch is possibly defective
Bulbs? Fuses? Relay? Dimmer switch? Headlight switch?
They as designed to "dim" when headlights are on to reduce "glare" try adjusting dash dimmer switch
The dimmer switch is defective.
Dimmer switch controls the selection of either Hi-Beam or Low-Beam headlights
Have you tried the dimmer switch? It is usually located next to the headlights switch. On pull out headlight switches, rotating the switch itself clockwise or counter clockwise is the dimmer switch and interior light switch.
That sound like a loose connection..pull the switch to the ON position play with the wiring . look at the dimmer switch.. check your ground wire. GOOD LUCK..NOW..LOL..tell me where the FUEL PUMP RELAY is on a 1979 Cadillac Seville( not under the hood)
Yes it could.
Disconnect the battery. Disconnect the air bag system. Remove the steering wheel. The dimmer switch can now be replaced.
This is usually an indication that the dimmer switch is in need of replacement.