Ford F-150 (2004-2008) :: Dome Light Not Working?
Sep 24, 2013
My Dad just took delivery on a 2008 King Ranch F150 last night and after he got it home, he noticed the dome lights did not work. We checked all the fuses and bulbs. Also tried adjusting the dimmer switch, but we cant figure out why the dome light will not turn on.
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I have a 2007 Ford F-150 SuperCrew Lariat (with Sunroof) that the Front Interior Dome Lights are not working in. I mention the Sunroof because there is a switch to operate the sunroof in the same panel as the front dome lights. The Sunroof switch works just fine though.
However, the back dome light does work. I would've thought these were on the same line but my thinking is probably wrong. So far I've pulled the front panel where the dome lights are located and checked the bulbs. The filaments are not broken at all and the bulbs seem to be good. I then went hunting for the Fuse box and looked through the user manual to see which fuse corresponds to those front lights. However, I've been unable to determine which fuse it is.
So I guess the questions I have are:
1.) Why the front dome lights would NOT be working and the rear dome lights are? Are these not on the same line?
2.) Which fuse corresponds to the front dome lights?
3.) What relay corresponds to the front dome lights?
4.) Do I need to disconnect the battery before messing with any of these fuses or relays?
Troubleshooting steps at this point?
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I have a 2004 F150 Screw Lariat and the problem is this: After turning of the truck, removing key from ignition and opening the door the following happens:
1. Radio stays on (will time out)
2. The power windows still work
3. The interior dome lights stay off
It's as if the door switches have been removed from the circuit. I've tried all doors. There are references to the GEM module but I didn't think there was one in this truck.
For the door switches, when the door is closed, the circuit is open, when the door is open the circuit is closed. I'm not sure what to check next. I checked some of the relays - auxilary delay relay, power relay etc etc. but I would think its a relay issue.
The door open signal is transmitted on the UBP network, no idea about that and they feed into the body control module - not sure where this is.
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Alright so I ran into a problem I went to turn on my passenger side dome light in my '06 F150 supercrew and it will not turn on. i just replaced the bulb and still nothing. If it could possibly be a blown fuse or something simple?
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I have a 2005 F250 with 6.0 Crew cab
Wanted to change out factory bulbs to LED's. The factories were working just fine, just wanted LED's. Broke a couple of center bulb holder's/clamp. Don't really know what they are called. Went to junk yard got a couple of used ones, those worked because when we opened the doors on wrecked trucks Dome lights came on! Got home put them in and NOTHING. No dome, no map lights with LED's. Changed back to factory bulbs and only map lights come on, NO dome lights on front or back and my 3rd brake light quit along with the 2 bed lights. Checked the wiring plug and have power to one wire. What fuses would I need to check or to check where next? Owner's manual is not very specific about which fuse.
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My Dome lights don't work when you open the door. I can manually turn them on though. Also door ajar light is on. Are these issues caused by the door latch switch? Also have no fog lights I replaced the switch and bulbs. I have a 2003 F250.....
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I have a 1999 mazda b2500 and unable get my dome light to work. Replaced the light bulbs so not issue.
Issue #2 When I start truck I get 5 beeps for 5 times and after truck running for extended periods beeps again.
How do I repair these issues?
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I can't find out why my dome light doesn't work. I threw a bulb at it first, and then a tester but found no voltage with the door open or the dome lights dimmer roller clicked over to "interior lights on". I do get a door chime with the door open, so seemingly the door switch is working. Fuses 4 and 14 are good. They seem to be the related fuses.
Here's what I've checked.
1.. Fuses are all good.
2.. Removed and tested the relay. It tested properly, closing the large contacts when voltage is applied across the two coil terminals.
3.. 12V is present at the large left contact in the relay plug.
4.. I applied voltage to the relay output pin (the large contact next to ^^) in the fuse panel and get the dome/cargo lights to illuminate, so I know the wiring from the relay to the lights is good.
5.. The two smaller relay pins upper and lower look to be the relay coil/turn on contacts. (The middle contact is not used) There is 12v on one of them and it seems the other should be grounded with a door open or when the dash roller is rolled past the detent. I'm not getting this grounding signal.
6.. I do get a warning chime if I open the door while headlights are on etc, so it looks like the door switches are working.
Just got back in from some more testing... Here's a breakdown of how the relay works:
- Relay socket we're looking at is the upper socket.
- High amp 12V power is on the left large vertical contact. The relay's function is to port this voltage to the middle large vertical contact. (the load contact)
- The middle vertical contact (load contact) goes to the dome light and cargo lights.
- The upper horizontal contact is one end of the relay throw coil. This one has 12V present when probed.
- The middle horizontal contact is not used. (actually it's an empty socket with no female terminal behind it.)
- The lower horizontal contact needs ground applied to it to get the throw coil to close the high amp contacts.
With the relay plugged in, I was able to sneak a thin probe to the lower horizontal contact and ground it. The relay activated and the lights came on. So, for some reason I'm not getting the grounding signal to the relay with the dome light rocker or the doors open even though I get the door chime.
Apparently there is something between the door switches and the dome light/roller switch and the relay? Is this the GEM module? If so, I don't see the reason for anything between the switches and the relay? It should be a pretty basic relay circuit?
Is this something (GEM?) programmable, or testable? I don't want to throw parts at it. Looking for a wiring diagram, a diagnostic flow chart or a pin out?
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On a 1999 Excursion with a v10. I've got a strange problem. When the truck is left overnight, the battery is dead. Doing some testing, the is a serious draw through the dome light circuit that controls the Gem and the Tail Lights. If I pull that fuse each night, then the battery is fine. But I can't leave that fuse out, as the shifter interlock switch is disabled by this fuse. All the tail lights seem to work fine.
Dome lights do not come on. I've tested the bulbs. They're good. There is now power it seems to the dome light sockets. The door ajar light works, so I'm guessing all the switches are good.
I also have no power windows working. There is no 12v to the switch. But I heard about the Gem module as well. So I'm not sure if the Gem controls if there should be 12v to the switch all the time.
I pulled out the Gem. It looks good. No sign of corrosion or water.
Any thoughts on what to look for or how to troubleshoot this? Is there a way to test a Gem? Would a bad Gem cause the battery draw down?
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2004 F-150. Today, I noticed the map/dome lights wouldn't turn off no matter what I did with the switch. Also noticed the cargo lights were on as well. Pulled fuse #24 (appears to be good) and that seemed to fix the problem: lights are now able to be controlled by the switch. When I reinstall fuse #24, same problem. Also, battery seemed to be drained and the radio pre-sets were gone. Am I right in suspecting the battery saver relay? If so, which relay is it and can I replace it myself or is it factory soldered?
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Every time I replace the fuse(under the hood) it blows almost immediately and no interior light work. When on all doors and overhead lights do work so I don't believe it's one of them shorting. Even tried bigger fuse.
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I'm having a problem with my interior dome light and my door chime bell not working in my '01 F-250. I found that the bulb was blown,so I replaced it thinking it might fix the door chime bell also, thinking they were wired together from the factory.
The new bulb didn't fix the problem. I recall that when I noticed the door bell didn't ding-ding anymore was about the time(when it got dark), that I noticed the dome light was out also.
What I may check? The fuses all work, the interior dome relay switch works and I see nothing else in the owners manual to look for as far as dome lighting and door bell chime.
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On a 2008 E250, Where is the dome light wire and what color is it? To use with an omega security system.
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I have an issue with my seat moving and the dome light coming on while driving. This happened several times and I checked the fuses and for a possible loose connection. When I jiggle the key in the ignition the seat would start to move. I was trying to replicate the issue. Today the seat moved and the light came on but this time the truck shut off... I am thinking it maybe something in the ignition....
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2004 Lariat ... My cruise isn't working, won't even come (no light on dash). I tried the self test where you turn the ign on with the E-brake on and try holding the cruise off button to enter some kind of diag mode but it didn't work. I found a video on youtube where a mechanic replaced some pressure switch on the master cyl but my master cyl doesn't have what the video showed. I read somewhere about the 3rd brake light having something to do with it. FWIW, my 3rd brake light does not work.
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I have changed bulb and got flicker then nothing?
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I have a 2005 F-150 and the tail lights and turn signals stopped working. Only the park light seems to work and it very dim. I replaced the bulbs and that did not fix the problem, so I checked with a volt meter and I'm only getting 6 volts to the socket. Fuses appear to be good.
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I'm having trouble with my '99 F-350 7.3L 4X4. One day, my power windows, cruise, dome light, horn, wipers, and 4 wheel drive stopped working. After checking all of the fuses, I have found no bad ones.
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I have a 1996 Toyota corolla base model,my dome light stopped working a bout a year ago,I clean the contacts and bulb with sand paper,light would then work for about 2 weeks now When I clean contacts light will only work for a few hours. Have tryed new bulbs many times does not make any difference, don't know what to do.
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I have a weird problem. My recently installed stereo (aftermarket) is not working. There is a red light on the main dial that indicates that it is "off", but it will not turn on. Nothing is displayed on the main stereo panel, hiting power doesn't work, no turning on the various modes: only the weird red ring. The dome light still works, as do the map lights. Which fuse should I be looking at? Or is it an inline fuse gone just badly enough that it can power the "off" light but not the actual stereo?
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1996 Toyota Corolla base model 1yr ago dome lite would stop working,I then would sand contacts on dome lite and sand bulb it would then work for about 1 month now I do the same thing and lite will only work for about 20 min.(tried new bulbs many time) was told could be corroded or a bad relay, dont know what to do????
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