Screen not backlit

Brake light switch usually pushes into bracket until the switch plunger hits the back of the brake pedal and is fully depressed, then turn the switch to lock it in place. Next, connect the wiring plug. The point is, it must be depressed when the brake pedal is up, as it turns on the lights as you push the pedal down and its plunger is released.

Park brake lights normally operate by a small plunger type switch the turns off when the level or pedal is placed in the off position. Over time the spring in the lever weakens and placing the lever in the off position no longer depresses the switch. The switch can sometimes be adjusted to make better contact, or the switch bracket can be bent so the lever and switch make proper contact.

The fuse will be a blue 15 amp generally knee height beside your steering column ,you have to release the panel covering the fuses to see them . best to kneel on the ground with the door open. Find the fuse by pulling out and replacing untill you get the right one, usually around number 25 and sometimes called a courtesy light. The fuse diagram is on the inside of the cover when you remove it. there will be a indent for your fingers to pull on and release the panel/cover. Have you tried manually pushing the switch on the door column and spraying some WD 40 into it ? hope this helps you.

check the brake light switch , its located at the top of the brake pedal,, up under the dash where the brake arm is mounted. its just a switch that passes the 12 volts to the brake lights, its either on or off so its not complicated , check to be sure the connector is fully connected ,, sometimes the wires come loose, you can check the switch itself with a meter,, with the switch depressed you will get a pass through of power, and when released nothing passes through,, if your not getting the 12 volts traveling through the depressed switch, replace it and you should be fine

Most laptops have a backlit display panel, usually a black screen means that the rear illumination has either failed or the switch which places the laptop into sleep mode when you close the lid has failed or jammed. Most sleep switches can be seen around the spine or hinges of the display panel and gentle coaxing with a wooden toothpick can usually release them but DO NOT use a probe made of metal as this could cause catastrophic damage if it touches and of the internal circuitry.
If you find that the sleep switch is working, take the laptop to a qualified repairer as laptops are really bad to disassemble and the display is NOT a repairable item. The inverter for the backlights is usually contained within the trim surrounding the display panel but may sometimes be hidden inside the base of the unit. THIS INVERTER OPERATES AT HIGH VOLTAGES. NEVER TOUCH IT OR ATTEMPT ANY KIND OF REPAIR WHILST THE INVERTER IS CONNECTED TO THE POWER SUPPLY - YOU HAVE BEEN WARNED.

If the circuit has power and the fuse is good the problem is most likely the switch. Look under the dash above the brake pedal arm. There is a small plunger type switch which is activated when the brake pedal is depressed. Sometimes this switch gets loose and or out of adjustment. There are two nuts on the shaft (one on each side of the mount). They should be adjusted so the brake lights activate when the brake pedal is depressed about 1/2 inch. If adjustment does not activate the lights use a multimeter and see if the switch is good by touching each of the two wires and depressing and releasing the switch. If there is no difference replace the switch.

check ur brak switch above the brake pedal arm!

Not sure what you mean by no taillight. There is a switch at the top of the brake pedal arm that usually goes bad. They call it the brake light switch. If your brake lights are not working than this most likely your culprit. Sometimes all you have to do is shake the switch and will start working for a moment. You obtain the switch at most auto parts stores. Have someone watch your lights while you shake the switch. If so replace the switch.The switch also controls the release of your shifter. Now if that doesn't work you will have to replace your multi-function inside the steering column. You will have to remove the center cover that raps around the steering column. This switch is also known as your turn signal switch. The cover is held in place by three or four screws that are inside the small holes. Your brake lights and tail lights also go through this switch.

Sometimes the backlit gets loose.If there is no light and no image on screen, then you may need to take phone to an electronics store for LCD screen replacement. If there is image, but no light, then:

1. Power off phone
2. Remove back cover
3. Remove battery
4. Remove SIM
5. Using a little flat head screwdriver, unlock and remove the frontal cover of the phone.
6. There are six Torx screwdrivers inside. It's head looks like this:

1. Then use a Torx screwdriver for removing them. If you haven't one, a small triangular file, or a swiss knife will do the job.
2. After so, remove the back plate of your phone.
3. Remove the 4 Torx screwdrivers wich hold the screen in place.
4. Remove the screen.
5. Clean the contactoes between screen and phone.
6. Reinstall screen in place.
7. Repeat steps in inverse order to reassembly the phone.
8. Power on phone. If light stills refusing to work, then take your phone to an electronics store.
   

Try the switch that when brake depressed releases lever from park, inside gear lever cover
if not that try looking at linkage.