Dim lights don't work but brights do if you hold the switch up

is it adjusted by the light switch left on bright right dim all when lights are on all dash lights will dim thats normal

check for a loose dirty earth point for the lights. wire not earthed to a pint that is connected back to the battery.

not sure about that one but there is a dimmer wheel by the light switch. move it up and down to dim and brighten the dask lights/cluster. wheel may need replacing. also work the lights on and off switch manually to see if there every thing works smooth or hopes from dim to brite.

i had this happen with my dodge ram 1500. the guy i bought it from put 350 dollar moon lit lights in with leds and they looked impressive but the issue was that they didnt go bright and i could only see 40 feet in front of me and i was sure taping led flashlights would have done me more good that those stupid headlights. then i had the idea of if the brights work and the dims dont then that means no electricity is getting to the dims so i decided to bridge the power from the bright headlight to the dims and it made all four work. now they all work, and only on bright. so im figuring there is a issue with the wiring in the truck. so this is a temporary solution if you really need just plain old lights like i did because i live out in the country

you could have a dimmer switch problem that may need an adjustment or replacement.do you hear the switch click when you try to change from high to low,if not than these could be the problem.the switch is located on the top of the steering colume and the base of the colume under the dash.if you work the dimmer switch on the colume and put your hand on the colume under the dash you should be able to feel the rod that pushes on the switch.follow the rod down and it will go to the dimmer switch.there are 2 5/16 bolts that hold it in place that if you loosen them and push the switch up towards the steering wheel it will move it so the rod won`t have to move as far to change from low to high.if this is not the problem and you don`t hear a click then its usually a switch replacement.

Try turning the headlight control knob clockwise so that the arrow is pointing up. You may only have it in daytime lights mode and not actually in headlight mode.

Follow the ground wire ( black to the raditor suport and reconnect it or add aground wire from it to the battery ground and it'll work good. Bet it goes out if you unplug the other headlightas it's grounding thought the other light.

I finally got mine fixed!! It was the crossover wires between headlights(the wires that run in front of the radiator). One wire was torn into. Spliced them and taped back together. Hope this works for you!! I also used something called wire caps that help hold the spliced wires together. I found this solution on yahoo.com search engine where someone else had suggested this. My only problem was no dim lights, but all the other lights worked fine.

Dimmer switch is going bad. If you rapid fire the switch they will switch from bright to dim or dim to bright. replace the colum switch.

the inner lights are the brights but some vehicles also use the bright lamps with low voltage as the daytime running lights