perhaps it's time for a new motor or the gear is worn, or fuse is bad. I would raise them manually and disconnect motors until you get it fixed.
Mine has been the actuators for the headlights that needs replacing.
The are adjustment screws next to the headlight housings. To adjust the headlights either loosen or tight the screws. This will either raise or lower the headlight unit.
The Plastic Gear Inside the Headlight is Worn, atleast half of it. You can buy a metal gear for $40 and replace the plastic gear.
If your looking down at your headlights there will be a a screw on the bottom left of the headlight. It should be a 4mm. Counter clockwise will lower them and clockwise with raise them
Raise your hood and look on the frame that sits over your headlight. There should be a hole and if you look down in it you should see a screw. Turn it left/right to raise/lower headlight.
open hood. On top of each headlight there is an adjustment screw. Turn it either way to lower/raise the headlight
There are small adjustment levers next to the headlight housing on the 1996 Acura T.L. Loosing or tighten it to raise or lower the lens of the headlight.
Use the button on the dash to raise the headlights, remove the black plastic cover from around the headlight, unbolt the cover from the frame mechanism (IIRC).
Each headlight has a separate motor that raises them and lowers them. Sounds like they need replacing. They're located under the headlight housing unit and hard to get to, so I'd recommend taking it to a mechanic.
To adjust your headlights on 2005 Ford Taurus, first open the hood of your car and turn the lights on, find the headlight adjusters beneath the hood, and turn it counterclockwise to raise the beam or the other way to lower the headlight beam.
If you cannot reach the adjustment screws, you're only alternative for headlight aiming is to change tire pressure. Deflate the front tires to lower the headlights, deflate the rear tires to raise the headlights.
The headlights on a 1998 Honda Civic use adjustment screws which are located on the side of each headlight in the engine bay. Tightening it will raise the light and loosening it will lower it.