First, make sure that the lighter socket is properly connected to the electrical system. The socket should be connected to the battery with a positive and negative wire. If either of these wires is loose or disconnected, the lighter socket will not work.
Next, check the lighter socket fuse to see if it is blown. The fuse for the lighter socket is usually located in the fuse box under the dashboard. If the fuse is blown, it will need to be replaced with a new fuse of the same amperage.
Finally, you can check the lighter socket itself to see if it is damaged. The lighter socket may be damaged if it has been overheated or if it has been dropped. If the lighter socket is damaged, it will need to be replaced with a new one.
If you have checked all of these things and the lighter socket still does not work, you may need to take your truck to a mechanic to have it diagnosed.
