Unless you have a background in elecronics or electrical engineering do not attempt to repair the power to your monitor.
Try another monitor on the computer and if it works correctly then the monitor is defective. Buy a new one, as it will cost more to repair than to replace.
NEVER attempt to repair air bags. They are dangerous and can KILL YOU. Replace them and have them certified by the manufacturer(dealer). If it is a switch, take it to a dealer to repair. I have to add,,,,if you do attempt to repair the switch and power is applied and the air bags blow, you CANNOT DRIVE THE CAR.
It will depend on exactly how the monitor and tower is not working properly. It would be best to consult a repair manual, such as the Computer PC Repair Manual, to find the exact problems and see exactly how they should be fixed.
Recovery Console
The only fuse located in a computer is the one in the power supply. It can be very dangerous to open a power supply without proper training. If you do not have the requisite training to repair a power supply, please do not attempt to open it. Your life isn't worth losing over a $50 hunk of metal and wires.
There are many websites on the internet where one could buy refurbished computer monitors. Buying refurbished computer monitors can help to reduce pollution throughout the world. It is also cheaper to buy refurbished computer monitors rather than buying brand new ones.
This is a potentially dangerous repair. Do not attempt this yourself. This should only be done by a qualified tech.
The concepts are very similar. I usually see "Rework" used to denote: any attempt to alter nonconforming product into conforming product. I usually see "Repair" used to denote: any attempt to restore damaged/broken product to an undamaged/unbroken state. A computer damaged by Power Surge needs repair; a computer shipped to your house minus the Power Supply needs rework.
If your microwave shorted out, unplug it immediately and do not use it. Contact a professional technician to assess the damage and repair the microwave. Do not attempt to fix it yourself as it can be dangerous.
Perhaps the easiest way to fix malfunctioning computers is to take it into a computer repair store such as Geek Squad. This, however, can be expensive. Another option is to use any of the variety of computer repair consulting websites, and to attempt to fix the malfunctioning computer yourself by consulting the advice found there.
It should turn off automatically if you plug it into your computer and turn the computer on. If it doesn't, something is wrong. First thing to check is the plug that plugs into the computer for bent pins. Also check the other end of the cable that plugs into the back of the monitor. If the pins are not bent then you will likely need to take it to a shop for repair or replacement.