Your fuse is probably blown. Go buy a pack of new fuses for like $5 dollars.
On the 2003 Ford Explorer - 4 door - in the fuse panel located under the instrument panel on the drivers side , fuse # 24 is a 15 amp fuse for the cigar lighter , OBD II
In the fuse panel on the driver's end of the dash (visible with driver's door open) in location # 17 is a 20 amp fuse for the cigar lighter/ OBD II.
Check this website: http://www.focusplanet.com/downloads/focusmanuals/2003/2003_focus_owner_guidemanual.pdf
it should be in the fusebox, look in your owners manual if you have it.
Cigarettes lighter
fuse # 17 is a 20 amp fuse for the cigar lighter , Data Link Connector ( DLC )
# 41 / 20 amp mini fuse / cigar lighter , OBD II diagnostic connector
In a 2003 Daewoo Matiz, the fuse for the radio and cigar lighter can typically be found in the fuse box located under the dashboard on the driver's side. You may need to remove a cover to access it. Refer to the owner's manual for the specific fuse diagram, which will indicate the exact fuse numbers for the radio and cigar lighter. Always ensure the vehicle is turned off before checking or replacing any fuses.
On a 2003 Ford Explorer Sport Trac : ( fuse # 17 is a 20 amp fuse for the cigarette lighter and OBD II ) * open the drivers door , and IN the drivers end of the dash you will see a removable plastic fuse panel cover
The lighter fuse for a 2003 Buick Rendezvous is typically located in the underhood fuse box. To access it, open the hood and look for the fuse box, which is usually positioned near the battery. The specific fuse for the lighter is often labeled as "CIG" or "Cigar," so refer to the diagram on the fuse box cover for exact identification. If the fuse is blown, replacing it should restore functionality to the lighter.
The owners manual list fuse numbers: 1. Power Outlet (Front) 16. Power Outlet (Rear) 31. Cigar Lighter
In a 2003 Toyota Camry, the fuse for the cigarette lighter is located in the engine compartment fuse box. Specifically, it is typically labeled as "CIG" or "Cigar." You can access the fuse box by opening the hood and locating the fuse panel near the battery. Always consult the owner's manual for the exact fuse location and specifications.