Originally Posted by cnocmmz
Not sure where or what that is :-)?
Do you have a multimeter tester?
First ... set a multimeter to 12vdc and see if there is power 12 - 14vdc to either of the connections on the back of the lighter socket. You will have to clamp one lead to a known ground location under the dash. Probably there will be steel framing under there somewhere. Touch a connection at the back of the lighter socket ... any reading on the meter? Touch the other connection ... any reading?
If you get 12 volts or so from one connection, then you have found that the problem is not a fuse or a disconnected power wire to the lighter socket.
Next, set the multimeter for continuity and using the same steel frame ground for one lead, touch the other lead to the connection at the rear of the lighter socket that is NOT the one you got a power reading from.
If at this point you have no beeping sound from the tester, then you may assume the ground wire to the back of the socket is not doing its job. If you DO get a beeping sound (indicates a continuity of the wire) ... then suspect the flimsy little cigarette lighter socket is crap.
Those lighter sockets are not a product of rocket science. I've never bothered to attempt a repair ... just bought a new one ... They are not expensive. Matter of fact this is your opportunity to purchase a dual socket model (if you have the space). I believe quad sockets are available too.
I think what eventually destroys a flimsy lighter socket is putting repeated stress on it due to yanking accessory plug-ins out of it.
My multimeter and some alligator test leads came from Harbor Freight. Yep, not top quality, but good enough. And price was well within the pocket change that I'm allowed to carry. Wife is the financial manager, and a tough one at that.