look next to the master cylinder

 

fuses for this is #7,30,46,47, These are the only fuses for the lights and there is not a fuse box under the hood on the 03 . But there is a couple of relays on the iner fender well on drivers side which i am not sure what they are for. but I do know a bad ground can affect how the lights work. I have an 03 4x4 7.3 l excursion.

 

my manual only goes up to 2002 model in the wiring diagrams, although the cover says 1999 - 2006 ? I can only say that a relay now is the most likely culprit in your situation, I am an Aircraft mech/electrician, and relays on aircraft fail quite often. they will fail open most of the time, but they will fail in the closed position also.I would try to locate the headlight relays, there are 2 relays on the 2002 models with daytime running lights. try hooking up your battery and pulling the relays you found and see if the headlights turn off when you pull one of them, if not , try to find the right relays, I dont know what else to tell you other than to trace the power back with a meter till you find something [common troubleshooting techniques] . grounds can be a problem, there are ways to see if a bad ground exists with a meter, probe from the component ground point to a known good ground and see if there is voltage present, there should be very litle if any, if you see a significant amount of dc voltage there is a bad ground.I hope this will be of some help yo you since my typing really is s-l-o-w, and this took me about 15 minutes to type...lol.

 

Am I the only one who gets a little queasy when I read "aircraft" and "fail" in the same sentence??

 

Am I the only one who gets a little queasy when I read "aircraft" and "fail" in the same sentence??

 

Me too!!!

 

When you are building new planes, you find the bad parts pretty quick. Parts fail ,thats why there are backups.Military aircraft have even more backups tham most commercial, lots of redundancy.

 

were you studdering?.........or just repeating yourself ? ? ? ? ? ?

 

I believe it is drivers side. Sounds to me like you have a gremlin in that their truck. Let us know what it is because that is really spooky if it is not the relay

 

I am going to check it out this weekend, I've just been too busy at work and with the holidays, its hard to grab an extra hour to actually try to figure it out, as soon as I know, I'll let everyone know. Thanks so much for everyones help.

 

Sometimes my browser freezes during a post. If I hit stop and refresh it either doesn't post or posts it twice. I was looking on the edit window for "Delete Post" but I couldn't find one.

 

Did anybody solve this issue. I am having the same problem and I have no electrical diagrams. I have pulled the switch and it does not turn off the lights. I have pulled the three relays in one of the boxes under the hood and no joy. Are there any lighting relays under the dash in the hugh fuse/relay box?

 

I REALLY need to know how you solved this problem. I have the same thing in my 03 and have run out of ideas.

Please, Please help.

 

2002 FORD EXCURSION ELECTRICAL PROBLEM:
While driving the vehicle the smell of wires burning was noticed with a small plume of smoke viewed coming up from the upper LEFT side of the steering column shroud (not the steering wheel).
The battery was immediately disconnected. Upon inspection NO fuses were blown. All fuses checked out good. NO wires were found burned, damaged, or frayed. ALL electrical components appear operative with the following exception.
During TEST: In PARK, w/ignition key on, while checking light functions, the back-up sensor alarm went on (beeping) momentarily (twice). After several repeated attempts the incident did NOT re-occur.
Can anyone HELP? Got any ideas?
Please advise smoothbella@netzero.com
Thank you.

 

BIGGJOE welcome to FTE! check out this link to see if this is you problem.

https://www.ford-trucks.com/forums/7...uestion-3.html