Ford Super Duty (1999-2016) :: 2004 F350 - Trailer Brake Lights Not Working At The Tow Plug?
Sep 18, 2015
2004 ford f 350 super duty, 6.0 Liters international diesel, 4door, 4x4, long bed, dual rear wheels. Over 200,000 mileage. I have no power to the trucks brake lights and no power to the tow plugs trailer brake lights, which is the center left and the center right tow plug blade style contacts, while using a 12 volt test light! All fuses are showing good and I replaced the brake switch at the brake pedal, and I also replaced the towing plug with the short wire and connector at rear of truck which is under the rear bumper and the frame mounted tow hitch bar
- Are there any relays that control the truck brake lights and the trailer brake lights ?
- If yes where are the brake relays exactly?
- Have I missed or not done something else to correct the problem?
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I have a 2008 F350 Super Duty Regular cab long bed 4X4 I have no cargo light and no third Brake light, checked and even replaced bulbs. Still have no lights up top, what to check or how to fix this? Can I tie the cargo light into the dome light inside without screwing something up? I can't understand why they stopped hooking the cargo light to the dome light but this one seems to be wired separate. Would love to get these lights working again. When I bough t the truck the cargo light didn't work and I thought maybe the bulbs were burnt out, I never checked the brake light I tried to get the cargo light working and that's when I found out the brake light didn't work either.
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I have an 05 f350. I cannot get trailer running lights to work. All other lights work. Trailer brakes work, battery charge for dump trailer. I've checked fuses under dash and under hood. Everything checks out. I'm Stumped.
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2013 F250 XL with factory towing package.
My camper and boat trailer do not have turning signal or brake lights when plugged into the round seven pin trailer connector. I have tried both the connector in the bed and under the bumper. I've also connected the trailers to other trucks and the lights work fine so I know the problem is in my truck.
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Ihave a 2004 F350 4x4 Dually diesel. While in my hay field I hit a small rut and the truck bounced. About two seconds later all gauges and lights/windows quit working and the truck ran rough. I have a Banks system and it registered a code 33. Maybe 32 error. Book says it is an airbag deployment. They did not deploy. So I drove out of the field and turned it off to see if that would reset the gauges. No, not only that but the gauges all swept the faces from off to full to off and the truck would not start, just chatter.
I disconnected both batteries and waited. Reconnected and it started, but the gauges quit after 10 seconds..... Everything flatlined even the banks IQ. But the truck kept on running. Got back to the ranch and the batteries went flat overnight... Charged them up, starts fine gauges work but alternator puts out 11.5.
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I recently got my truck back from the dealership 04 super d 4x diesel (wife put gas in).. Anyway my dash lights, running lights and brake lights are not working. I checked fuses already and I did not see any obvious problems. I also replace the switch but that didn't work. Perhaps a ground somewhere or a relay? Turn signals and headlights work.
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2004 f250, brake lights except 3rd brake light do not work. flashers also do not work. turn signals work on both sides. when you turn on the flashers only the right indicator on the dash lights. checked all fuses for brake lights and am at a loss. On a float trip this weekend with my toy hauler and need brake lights to get home.
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The door on my trailer plug is broken. I can't seem to find just the door. Need to get one without having to buy the whole plug assembly?
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So the other weekend I hooked up to my buddys landscaping trailer, everything was fine until I plugged in the harness, No Lights...no big deal cuz it wasn't much of a drive, but I gotta haul a boat tomorrow a little ways and Id like to be legal.
I need cleaning my trailer plugs. What is the best way to clean the terminals on the small 4 prong? The big plug is fine, just a little dirt inside the cover, but I am still going to clean the contacts and put di-electric grease on them.
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I have an 04 F350 with Glow Plug errors on cylinder 2, 4 and 8. I have already replaced the harness on that side because the old one was gunked up pretty bad. Still have the same issue. Does this sound like a GPCM issue to ya'll?
AE pulled the following codes:
P0672 Cylinder 2 Glow Plug Circuit
P0674 Cylinder 4 Glow Plug Circuit
P0678 Cylinder 8 Glow Plug Circuit
Not having issues starting but it rarely gets into the 30's here in FL.
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I have a question about my new to me 2006 F-250 CC, 4x4. Resource the 12-volt accessory supply wire that goes to pin #4 on the 7 pin trailer connector? We have interior lights in our enclosed race trailer and it's a bit of a pain to have to turn the key on to use the lights. Just don't want to run a direct fused wire from the battery to the plug if I don't have to.
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We have a 1994 350 ford dually. the brake light and the abs light came on and it has no brakes. replaced the master cylinder ... still no brakes. what next?
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I just bout a F350 V10, 2008. All is great except for the clearance lights. I took advice from this site....checked the bulbs....replaced the fuse....still doesn't work. There is no damage on this truck. Is there something special I need to do to turn these lights on?
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2002 f350 5.4L
No rear running lights or brake lights
No third brake lights
Headlights work
No signals or hazard.
I have power to the multifunction switch when I use a jumper wire to bypass the switch I can make the lights come on depending on which slot I put it in. I replaced the multifunction switch twice just to see if I got a new bad one the first time, but to no avail. I cant run my truck a night without the lights.
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All of a sudden my cluster light don't work. Like my all my warning lights work fine. Just when I switch my headlights on my cluster doesn't want to light up green anymore or the green lights for my climate controls. It's a 2002 F350 with a 5.4 in it. Where to start looking?
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Have a 2001 f350 that runs great until you hook a trailer to it. Once a trailer is hooked to it and you are on a slight incline (and I mean slight) it will not go into D.. It's like it gets stuck in N.. Have to jam it into 1 to get it to go.. Once level again it will go back to D... Truck has 177k miles on it.
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2005 F350 Super Duty. I have no brake lights turn signals or hazards. dealer suggested the multiswitch but changed it and still not working?
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My sons 2006 F350 brake lights and rear turn signals quit working. When the headlights are on, all the lights operate but the rear turn signals and brake lights do not nor do the emergency flashers. The front signals work but flash very rapidly. Although I'm not an auto electrician, I'm fairly mechanically inclined but the fact that the front signals work, the rear don't and all lights work as lights, just not as turn signals or brake lights.
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Not working at plug.
I see there is right turn/stop relay.
Does this relay ever go bad?
All other trailer lights work.
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I have a 2005 F250 that the brake lights are not working when brakes are applied. The rear blinkers and flashers are working. what could be my problem.
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My 2011 F350 is shaking like a wet dog, all the time, loaded with a trailer and empty. It's the whole truck, not just the front end or rear end. It'll shake a Dr Pepper flat in 10 mins. No one can figure out why. Maybe y'all can think of something.
Here's what we've done
New tires, balanced
Alignment
Replaced ball joints and sway bar
Replaced carrier bearing
Replaced passenger front hub that got mysteriously locked and henceforth destroyed.
Replaced all 4 shocks
Where to look next?? Guess I should mention is 4x4 dually with 177,803 miles.
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