Ford F-150 (2004-2008) :: Electrical Malfunctions - Blower / Turn Signals / Headlights Won't Working?
Aug 27, 2017
My truck is a 2004 F150 XLT, 4.6L 2 wheel drive extended cab
The truck starts fine. With no lights on, heater/ac blower turned off... my turn signals and hazards work as they should.
If I turn on my headlights, I have no turn signals and the indicators on the dash are slightly lit up along with my highbeam indicators. The actual dash lights do not come on.
The blower does not work at all regardless of whether the lights are on or off. Turning the blower on immediately creates the same issue as the lights. (no turn signals, slightly lit up indicators, etc). The blower does not work on any speed. I can hear the duct work changing direction behind the dash as I move the blower selector from dash to windshield to floor, etc. I can also hear the compressor kicking on for the AC.
What I have done: I have checked all the fuses. I have attempted to remove every one of them while running to see if anything shutting off would let the blower kick on. I have unplugged the blower entirely wondering if there was a dead short. I have removed and unplugged the resistor to see if that might be an issue. I have also removed the right side kick panel and checked the ground wire there that runs to the dash. Everything so far seems to be in good order.
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So I have an 04 F250 Super Duty 6.0L and suddenly the turn signals and hazards stopped working. First I replaced the switch on the steering column...no luck. Today I replaced the flasher relay under the dash panel (the blue one)...still no luck. I remember checking fuses in the fuse box but don't remember which ones I checked but I didn't see anything obvious. I also took a quick look under the dash at all the wires for any anomalies...nothing. I'm lost... What to do next!?
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My brake lights, turn signals, and flasher are not working in my truck. Is it a fuse and what fuse? Could it be a relay?
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I have a 2006 Ford F-150 V8 XLT 4x2 SuperCrew that I had to replace a few old/blown bulbs on (left Front Blinker and rear Right Blinker/Brake). I decided to go with the Pilot brand LED replacements, and verified that they are the correct replacement models to the factory bulb part numbers.
Per what I've read from others' experience doing this... I opted to buy the EP27 flasher to fix the issues with hyperflashing, rather than going with Load Resistors. So, all LEDs blink/flash with no problem.
The issue seems to be related to me having the Headlight Switch in the DRL-on position, and the headlights/parking lights not being on (i.e. if it's still daylight and it's just the DRL). If the Headlight switch is left in the off position or in the DRL-on position, when I brake or signal (left or right) the entire electrical system will flash/illuminate with the brake/flashing activity (this includes all LEDs and brake lights and the Stereo backlighting... anything that is dimmed by leaving the Headlight switch in an 'off' or DRL-on position). The only way to fix the problem is to turn the Headlight switch into the parking or headlights on position.. then the issue doesn't occur, all signal and brake light activities work as expected.
It's not a big deal, but I guess I'm lazy and like having the headlights come on and off automatically... plus, I'm a little worried that there might be an electrical issue that could cause me issues if I don't address it now.
The only thing I have NOT done is replaced the LEDs back with Incandescent bulbs, to see if the problem is totally eliminated. I have verified that no fuses are blown in the fuse panel, etc.
I'm sure the issue is easy to fix and I'm hoping the fix isn't to remove/replace the LED lights with OEM lights..
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I have a few issues with my 05 f150 that I need to know how to fix them
-the odometer display flashes on and off, the warmer it is outside the less it stays on
-heater blower doesn't work when the switch is on number one position, works fine on other positions
-power mirrors don't work neither side
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Well now I have to replace the multi function switch due to moving my steering wheel and the headlights sometimes working and turning signals not working. I saw a great video on youtube about changing a Multi Function Switch and it shows where the air bag needs to be removed. I was hoping that since my truck is an older 1997 F250 LD I wouldn't have to remove the airbag. Is there a way to do this w/out messing with the airbag on the 1997?
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I have a 2001 Econoline and the turn signals work in the morning but when the vehicle warms up they stop working. I have replaced the bulbs and the fuses. What I could try next.
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My 2007 F150's turn signals and hazard lights quit working. I checked the fuse and it was blown. Once I pulled the old fuse out the truck wouldn't start at all. What happened?
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I'm having problems with my front marker lights. The turn signals work but when I turn on the parking lights or headlights they don't work. They only work with the turn signals. And I can't get the front side marker lights to come on. I've tried everything...
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I started my car yesterday and noticed the headlights, A/C, defroster, turn signals were all not working. I checked the fuses and they're all fine. Checked other posts and it looks like the common denominator is the ignition switch. (Looking for pics) how to change out the ignition switch? And what is the level of difficulty?
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I bought a used 2002 Camry (at a discounted price because of a few dings and dents) and the headlights are not working. The high beams and turn signals work but not the headlights. I changed the bulbs, checked all the fuses and got a new relay but still nothing. I brought it to an electro-mechanic and he told me the ECM was busted and that he could maybe grind it down. This seemed odd to me so I called my old mechanic in the states who said he has never heard of an ECM causing headlights not to work and suggested I install a toggle switch. Does this sound like it could work? Could I do this on my own? I'm pretty handy but am a little hesitant to try any electrical work on my car as I have no experience with electrical work.
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I have checked the fuses for the Hazard and the Turn Signals. Both look fine. I tried replacing the turn signal flasher (which was a task in itself). After all of this it is still not working. What else could it be? Simple short?
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My power door lock switch in the drivers door stopped working (not the actuator problem, but the actual switch would unlock, but not lock the doors)
I started to research if it could just be simple corrosion and decided to spray the contacts with CRC electronics cleaner. It completely fixed it.
Next, my parking brake light sensor stopped working so I did the same and it fixed it.
I began to research cleaning contacts and found a number of people in the automotive forums who basically spray contact cleaner on every electrical connection they ever touch.
I will do this in the future. The only part I wonder about is if there is something better to spray on them to prevent further corrosion in the future. I used dielectric grease but it would be nice to just spray the thing down. However, CRC does say their electronic cleaner prevent future corrosion.
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I have been having some electrical problems lately that seem to be getting worse. For the past few months sometimes when i hit a bump or pothole my radio would shut off and then turn back on. Well I never got around to looking at it cause i would forget about it until it did it again. so just a couple of days ago im coming into my driveway, hit the bump, and my car shuts off. Not like a stall, just no electricity. I was thinking i need a new battery because my lights flicker and dim when i hit my window button, or when I am just sitting at a light, sometimes my dash lights will flicker. But now I am thinking maybe I have a bad ground or something.
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I have a 2007 F150 that it's brake lights and turn signals have gone out. What's wrong? I've checked fuses and connections.
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I was using a 2004 Heritage F150 and when I connected a trailer to it something got fried. I lost both my turn signals and brake lights. The trailer worked fine on my friends truck so I don't think the issue was there but with the 4-pin round connector that was on the truck.
I found two 10A fuses blown under the hood and replaced them but that didn't work. They were in slots 19 and 20 and are listed as the camper/trailer adapter fuses. The running lights still work. The interior turn signal arrows don't even light up or anything when the turn signal is activated.
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A friend of mine has a 2004 F150. The tail lights and the 3rd brake light are working but the rear brake lights, flasher and turn signals have stopped working. What could be wrong? I googled the problem and did find one person with the same issue in a 2001 F150. There apparently was a recall (#05S28) of the SCDS (Speed Control Deactivation Switch) but that vehicle kept blowing fuse 13. My friend checked his fuses and they were all ok,
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My 2006 F150 was purchased by me in early 2009 with about 28,000 miles on it. It's an XLT crew cab 4X4 with the 5.4. Stock except for a leveling kit and an aftermarket head unit. It currently has about 59,000 miles and has been babied since I purchased it. About 3 years ago I started noting some issues:
A. Oil pressure dummy gauge is all over the place. Some times it will show no oil pressure. Other times it is all the way to the highest mark. Other times the needle has gone 180 degrees past where normal is and is actualy pointing straight down towards the floor.
B. Recently my alternator dummy gauge has started doing the same thing as my oil pressure gauge.
C. The backlight behind my odometer works intermittently, but mostly not at all.
D. My dome light will flicker when first turned on. It doesn't matter which door is opened or if the override switch it turned on. It takes several seconds to come on and will flicker like there is a poor connection somewhere, but stays on once its on.
E. Blower fan will occasionally stop blowing. Once the climate control switch is turned to off, then back to on it resumes working. This doesn't happen often, but does occasionally.
Fortunately, the truck has not left me stranded and I want to keep it that way. We are getting ready to sale my wife's Toyota and this will become her daily driver. I want to take care of any issues before she starts driving it. Are these all separate issues or is there one common issue which could be causing them all?
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I have a 2006 F150 xlt 5.4 3v. I've owned it since Oct. 15'. In approximately Nov. I lost the rear right brake and blinker light, and then around Christmas I lost the rear left brake and blinker. I also have no rear hazards, but the inst cluster flashes at a normal rate when the flashers are engaged. All running lights work, and 3rd brake light works. Front blinkers work and all other electrical works. Have checked all fuses and bulbs with no solution.
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I have an 05 Freestar with no instrumentation and no error codes. None of the gauges work and most of the warning lights are lit when the truck is running. No A/C and no ABS while driving and turn signals work, but do not display on the dash. It appears that two separate code readers are not acknowledging the computer. The battery and alternator check out good and there is no drain on the battery when ign switch is off.
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Swapping the 08 mirrors onto older trucks. Which wire I should splice into in the door sill for the right turn signals?
I have an 08, with the tow mirrors/turn signals integrated. On the passenger side, the turn signal does not work. I'm not getting power at the plug.
I traced the wire colors from the headlight and taillight turn lamps and tried splicing into the same colored wires under the passenger door sill. This didn't work (I did get it to work on park lamps though, just not the turn signal). I can't find wiring diagrams.
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