Hi There! I Was Wondering If Someone Could Help Me:
The Reverse Lights On My Expedition Dont Work, I Replaced To Bulbs And Checked The Fuse And They Still Dont Work.
When I Drive With The Headlights On, The Instrument Panel Lights On And Off, As Do The Exterior Corner Lights.

Any Suggestions?
(oh, And Where Are Relays R301-r305 Located???

 

Im having the same problem except when I turn on the headlights I loose all instrument lights.

 

How was this fixed..Mine just started doing this....

 

sounds like a possible short somewhere in the electrical system, i would check all wiring and make sure no insulation is peeled away from the copper

 

Go to this link for the fix: https://www.f150online.com/forums/sh...d.php?t=224337