Hi Everyone,

I'm new here. I've got a fully built 2001 ford lightning. But I digress, I'm working on someone else's 2001 quad cab F150 XLT 4x4 tonight. All the outside lights work, EXCEPT the rear parking/clearance lights and the license plate lights.
Headlights come on, All Turn signals front/ back work, Hazards x4, Brake lights work, and Reverse lights work. I thought it might have a bad head light switch, so I swapped it with the one from my 01 lightning pickup. Same thing swapped. Put mine back in the Lightning, my switch works fine in my truck; but not this one??? I found a wire pin check for the main wire harness on here, and did that. Main Harness pins 10,5 show continuity when pin checked with a multimeter???! Should it be like this, allowing the switch to keep circuit closed till lights are turned on?

https://www.f150online.com/forums/el...f-its-bad.html

So I'm guessing one is grounding out, or they're rubbed together? Looking for some advise! Appreciate any help.

 

Have you checked for a blown fuse?