Anyone have a source for a headlight wiring diagram for a 2002 F250 with DRL? I need to figure out why my headlights only work when they feel like it.
The DRL work, though sometimes I wish they didn't (truck came from Canada). Flash to pass and all the other lights and functions work. But intermittently, the low beam and high beam function quit working. I drove home at 11:00PM last night with the markers and DRL only.
With the wiring diagram I have, I am leaning towards the switch or a loose wire behind it. This diagram doesn't have the DRL, and the fuse numbers don't match the manual, so I don't think I have the right one.
Go to autozone and register(it's pretty painless with no side affects that I have noticed). Then plug in your truck and then click on "vehicle repair guides" Then click on wiring diagrams. They have really good factory type diagrams for your year truck.
I found a loose wire in the column. I think it is the wire for the door open/key in ignition chime. When I touched it to a ground, I could watch the lights go out. Right now I have it outside the column and taped off. The only thing that doesn't work now is the chime.
I am no electrician, but I'll be damned if I can see on the schematics how those two circuits interract. When it was grounding out, it would interrupt the headlight power from the turn signal switch to the fuses. Finding it was pure luck.
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