The rheostat for dimming and brightening the dash lights.
yeah! of course we can automatically dim the headlights with the help of LED's.
Replace headlight switch- dimming rheostat may be loose
Battery is dead?
Check to see if parking/tailights work same circuit Check bulbs Check rheostat that controls dimming feature
Typically this is a failure of the headlight switch assembly. See the question about how to replace the headlight switch in a 1991 Cherokee for the answer of how to accomplish.
how to do halogen dimming system
local software dimming causing better view
It could be a blown fuse, or maybe the bulbs need to be replaced. Also check the dash dimming control to make sure it isn't turned all the way down.
You need 3 connections, (+) key on, (-) ground, and (+) reverse. The auto dimming mirror looks for (+)on the sense line so it can automatically lighten up when the vehicle is placed in reverse. If running a wire from your backup light circuit isn't appealing, then you can just leave it out, but the mirror needs a switched 12v supply and a ground. Some mirrors also have a compass and a thermometer.
Dimming the Sun - 2006 TV was released on: USA: 18 April 2006
Rheostat. Dimming by rheostat changes the colour temperature of the light