I have a 2002 F150 supercrew. The daytime running lights stopped working. All of the oter light work fine. Does anyone know what the problem might be.

 

I would starting with the fuses listed in your owners manual, starting on page 208.

Battery Junction Box ( aka BJB, engine compartment fuse box ) fuse #9.

If the fuse is OK, next would be to test the power at the DRL relay #2, to make sure the DRL resistor is not at fault.