High beams
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High beams
2004 F150 Supercrew
The high beams don't work. Flash to pass works when you pull on the signal arm. Checked the fuse and the relay. Both seem fine. I am guessing the switch is done? Which is in the steering column? And I would have to pull the wheel? Sounds like a trip to the dealer. Has anybody done it? Is it painful? Do you have to replace the whole turn signal assembly?
The high beams don't work. Flash to pass works when you pull on the signal arm. Checked the fuse and the relay. Both seem fine. I am guessing the switch is done? Which is in the steering column? And I would have to pull the wheel? Sounds like a trip to the dealer. Has anybody done it? Is it painful? Do you have to replace the whole turn signal assembly?
Last edited by MarkFJ40; Sep 12, 2013 at 12:13 AM.
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Joined: Jun 2002
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From: Under the flightpath of old ORD 22R
thanks for confirming what you have.
It would be a good idea to test the MFS itself, you can test at the wiring, but that won't help too much ( could be the MFS or the wiring still ).
https://www.f150online.com/forums/me...s-headlamp.jpg
I uploaded the diagram to another album, the site is not showing pictures from some albums again ( select album it shows album #2 ).
- Asked about it some time ago, and it went no where.
Here it is.
It would be a good idea to test the MFS itself, you can test at the wiring, but that won't help too much ( could be the MFS or the wiring still ).
https://www.f150online.com/forums/me...s-headlamp.jpg
I uploaded the diagram to another album, the site is not showing pictures from some albums again ( select album it shows album #2 ).
- Asked about it some time ago, and it went no where.
Here it is.
Last edited by SSCULLY; Sep 13, 2013 at 11:40 PM. Reason: Site albums are falling apart again tonight
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Thx for the wiring diagram & description. I'm wondering if some replies are just reprints of other posts as many refer to the multi function switch, and I mentioned in my initial post that the first thing I did was order and replace that switch, resulting in no change in the problem...
I did also try swapping out the Hi beam relay, assuming maybe the contacts may have been stuck causing the Hi beams to stay on, however, no luck there either.
Again, after all the above, when I turn the headlamp switch on, the hi beams & red indicator on dash remain "on", no matter what position the MFS is in.
I did also try swapping out the Hi beam relay, assuming maybe the contacts may have been stuck causing the Hi beams to stay on, however, no luck there either.
Again, after all the above, when I turn the headlamp switch on, the hi beams & red indicator on dash remain "on", no matter what position the MFS is in.
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Joined: Oct 2002
Posts: 7,295
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From: St. Louis (Out in the woods)
Thx for the wiring diagram & description. I'm wondering if some replies are just reprints of other posts as many refer to the multi function switch, and I mentioned in my initial post that the first thing I did was order and replace that switch, resulting in no change in the problem...
I did also try swapping out the Hi beam relay, assuming maybe the contacts may have been stuck causing the Hi beams to stay on, however, no luck there either.
Again, after all the above, when I turn the headlamp switch on, the hi beams & red indicator on dash remain "on", no matter what position the MFS is in.
I did also try swapping out the Hi beam relay, assuming maybe the contacts may have been stuck causing the Hi beams to stay on, however, no luck there either.
Again, after all the above, when I turn the headlamp switch on, the hi beams & red indicator on dash remain "on", no matter what position the MFS is in.
Last edited by projectSHO89; Feb 6, 2023 at 09:53 AM.
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Joined: Dec 2006
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From: Joplin MO
