Directly under the steering wheel there is a cover with four knobs. Turn those quarter turn and remove cover, fuses are located underneath.
Towing Capacity Check Related links below
fuses location
take out the bolts
33.1250 33.1250
Take it to a garage.
Check the trailer light connections.
Check your owner manual under fuses / relays. If you do not have one check Related Links below.
i need full wiring diagram on a 1982 ford f150 xlt with the 351 clevland 5.8 ltr
iin the manual that came with your expedition
First of all check your fuse box and see if you need to change a fuse then if that's not it check the wiring then the bulbs it might just be the fuses
Check your owners manual. If you don't have one copy & paste this link. http://www.genuineservice.com/genuineservice/en/gloveboxresults
Refer to your manual.