Electrical items inside car don't work

Check the fuse box there is one for radio but sometimes lighter shares the same fuse as radio.

the cigarette lighter fuse is usually the radio,clock ,instrument panel illumination fuse as well .If these other items are working ok i'd have to say the cigarrette lighter heat element is burned out or there is a loose /disconnected wire to the cigarette lighter socket

If there are coins inside the radio, it can short out the radio, causing all sorts of electrical issues with the vehicle. I've seen this happen before where a kid shoved coins in a radio and it shorted out, it would shut off the dash lights, climate control (heater / ac control), cigarette lighter/12V Power port and so forth.
You may be able to remove the radio and remove the cover/case to clean out the coins, but there could be damage to it by this point. If it is damaged, you'll have to replace the radio.

You have to get the dime out of there since it's metal and shorting out the lighter contacts.

It has to be a fuse. Check the maxi fuses under the hood. Also, check each fuse individually wherever there's a fuse box. If there's a blown fuse, then you have a short in the cigarette lighter and you will have to get the car serviced.

The circut is being overloaded.I beleive the cigarette lighter,the power mirrors and maybe the trunk release is connected to this circut.If there are any problems with any of these items the use of the doorlocks will overload it.GM always had problems with their cigarette lighters shorting.If none of these items are faulty.Have the door lock solenoids checked

Most likely you have something metallic that entered/fell inside one of the cigarette lighters.

I once found a dime inside a cigarette lighter which my children assured me was placed there by a shadowy personage named "Notme". Go figure.

While the fuse is REMOVED, look inside each lighter with a flashlight and remove the foreign material.

If you find nothing inside the lighters, disconnect them all from the electrical system by removing the single wire attached to the rear of the lighters. Replace the fuse.

Alternately, you can disconnect them one at a time, replacing the fuse after each one. You may need a few fuses for this.

If the fuse blows after ALL the lighters are disconnected, you have a wiring short circuit which is best diagnosed by a professional.

If the fuse does not blow, begin reconnecting the lighters until you see a spark, or the fuse blows again. This is the faulty lighter, replace it and your problem is solved.

Note: You cannot get shocked or electrocuted by your car's 12 Volt system but you can be burned by heavy sparking. You can reduce the risk of heavy sparking by using a lower-rated fuse during the testing. Wear saftey goggles and latex gloves for safety.

Good luck

Two years later and you solved my dead cigarette lighter. manual says fuse 35--but it did not say to check 38 on the left fuse box. Thanks--blown fuse and everything works. Thanks

welcome to fixya

This sounds like a short some where check inside the lighter for and metal items like a penny,dime ....if nothing in there then there is a short in the wires somewhere might be radio or the lighter .....i would lok at those two first