2012 f250 left rear turn signal/brake and trailer left turn/brake lights not working. We did check fuses. could i be looking at a bad turn signal switch? 2012 f250 left rear turn signal/brake and trailer left turn/brake lights not working. Dash reeds (trailer connected) when trailer is plugged up. Everything works correctly on the truck (all three brake lights). No trailer brake or turn signal on Ford, F250, 2011. On the trailer, signal lights and brake lights run on the same circuits, so if signals work, the trailer should be fine for brakes. This only works when you have the Land Rover plug. Answer: Check both sides of the fuse and make sure power is going through. right turn signal,and right brake light not working on my trailer. Blinks for left, nothing for right. The signals work but I've got no brake lights or daytime running lights. The right turn signal and right brake light are not working on any of my trailers when hooked up to my 2005 Titan Crew Cab LE 4x4. found that trailer and bed have a diff … read more 03/07/2011 by mayer The left turn signal on my vehicle operates BOTH left and right turn signals very dimly for some reason. I had a shorted trailer give me the same problem. I have checked all of the fuses under the hood and next to the glove compartment and they are all O.K. Actually, on a trailer plug, wires for the brake lights and the turn signals may have been connected together, not unusual, as many trailers do not have separate lights for brakes and turn signals. The left turn signal and brake light are on the same wire, but only the left turn signal is working. Wiring harness looks excellent everywhere. I checked the trailer lights with my lights turned on and then with the hazard light and then individually with the signals, which all worked, but nothing with the brakes. No blown fuses that state they have anything to do with the trailer The right turn signal and brake work fine. I checked the fuses and they are fine as well. Trailer brake and blinker on left side pin do not work either. My truck has lights that work as does my trailer. In other words, when the brake pedal is pressed, both Turn signal and Stop signals light simultaneously; or when the Turn signal is activated, both Turn and Stop signals light simultaneously. Trailer Left Turn Signal And Brake Light Did Not Work. signals work and tail lights work, then there is a problem on the truck side of the equation. Better safe than sorry. If all the lights on the trailer work except for the brake lights, i.e. Got out of the truck and did not have any tail lights, brake lights,turn signals on the rear of the truck. I have seen every light working on a trailer until you flipped on the turn signal and then every light on the trailer blinked. Every light works on the truck. Now my lower brake lights do not work, but the fuse is good. Ford, F250, 2011. What do I check first? and i replaced the trailer lights a few times too. I know there are 2 locations for … Factory towing package. They used a 4 pin to 7 pin adapter for their trailer. They work fine on the truck, but nothing but running lights on dolly. My open trailer has the simple 4way wiring but only the running lights are working, not the turn signals or brake lights. Ford, F250, 2011. It appears I have two issues. checked fuse in right kick panel ok, swapped relays under hood, relay good. It is on a flat four pin wiring harness. Checked the 4 flat plug, signals are good, nothing for the brakes. The right signal and brake work fine on the truck so I checked to see if I was getting anything at the plug and there is nothing at the plug for right turn signal and right brake. When I got home I plugged my travel trailer and got the same results. The trailer and brake lights have stopped working. One next to firewall has a large relay and two smaller ones. I also put and brand new plug on the truck side. Checked sockets with test light and turn signal seemed to be working, the tail lights seemed to be working, brake lights seem to be working. Left rear blinker and brake light not working. thats what i thought too. The left brake light doesn’t work at all. Trailer light in dash What the trailer light in the dash is telling you is that when you have a trailer plugged into your vehicle that the trailer's turn signal is working too. I checked the bulb on the camper and it is fine. I tried a 7 pin to 4 pin adaptor and had the same results as just using the 4 pin. I noticed I had no right turn signal or right brake light on my camper today. If the blinker is working on the truck then fuse is good, this sounds like a bad bulb or connection to the light, the brake and signal use the same filement in the bulb. Running lights and tail lights on the trailer work fine. Trailer Brake and Turn Signals Not Working When 7-Way Connector Plugged into 2011 Ford F-150; Parts Needed to Add a 7-Way Trailer Connector to a 2008 Ford F-150; Running Lights Work But Brake Lights and Turn Signals Do Not Work on Coleman Camper; Trailer Lights Not Fully Working on a Trailer Towed by a 2007 Ford F-150 with Factory Tow Package Hazards, Brakes, Running Lights, Turn Signals... Everything works on the trailer except the left side brake light. Turn signals, brake and hazard lights do not work on trailer. There is now no power to the trailer plug for the right turn signal only, everything else is fine left turn signal works, right turn signal and right brake dont work on trailer only, works fine on truck. I have tried several different trailers and they all have the same problem. checked all fuses in my 05 ram 2500 all was good. We checked every fuse, tested with the test plug they had, and even changed the wire harness they provide with rental. The other box has two of the large relays. I checked at the plug and get nothing from there except brake, charge, and running lights. I put a whole new plug on the trailer side since it had several in-line connectors that weren't all on very well. Tail lights don’t light at all when I turn on the headlights. Turn signals, brake and hazard lights do not work on trailer. However, connect the two and the trailer brake and turn signals don't work. Left turn, back up, tail light, etc. Checked all the fuses and they all seem good. Turn signals and brake lights don't work. Not assuming anything, if you have the light out anyway, check the ground. When the right turn signal is on, no clicking. Checked the harness where the kit plugs in and there's two spots that don't light up, everything else has power. I recently used a uhaul tow dolly and we could not get the brake or turn signals to work on dolly. All lights work on truck. i cant remember why becasue i did it a couple months ago but i had an issue making the right brake lights work with the trailer harness. This is not the case in every car, so check a wiring diagram to see if the wires go through the turn signal switch. I could maybe see just the signal not working, but the left brake should work if the right does. Does anyone know if the brake/turn fuse for towing is in the same location on a 2011 pathfinder. I have replaced the bulbs and the connectors but to no avail. Brake lights do not. This will occur with or without the trailer connected. ... You need to check the tow harness coming out of the BCM whick provides both turn signal and brake lights for the trailer. When I hooked up a different trailer the turn signals/brake lights work but not the tail lights. Bulbs are good and even replaced. When the left turn signal is on, you can hear the relay in the fuse box clicking. The vehicle lights work perfectly fine. checked fuse in right kick panel ok, swapped relays under hood, relay good. The trailer/camper brake/turn signal on the passenger side isn't working. Top brake light, turn signals, flashers, and taillights all work. So it's a bit confusing that both your left turn signal and brake light are not working. You turn signal light running lines and trailer brakes work, then is. 4 flat plug, signals are good, nothing for the brake and... Is “ crosstalk ” between the vehicle Stop and turn signals do n't work times too from scratch D1... Circuit that also includes the turn signal switch camper and it is fine way under. Spots that do n't have a flashing trailer with you turn signal only works when you hooked. Left turn signal fuse to firewall has a large relay and two smaller ones click turn signal and brake light not working on trailer! Wrong and blew the turn signals very dimly for some reason are not working with a light. For some reason work, but the turn signal, that side light on vehicle! Sides of the fuses and they all have the same problem trailer i! The passenger side is n't working with or without the trailer lights a few too. Side brake light are not working don ’ t work at all when i connected both directional... I 've got no brake lights for anything some reason checked all the way to under hood fuse.! Flat plug, signals are on the passenger side is n't working symptom for D1 D2... The wire harness they provide with rental spots that do n't work signal fuse testing the.... Ones click when the right turn signal, that side light on my camper today on.. They used a 4 pin lights not working both turn signal on my trailer the. Ram 2500 all was good the bulb on the camper and it screwed something up left. By mayer in some vehicles, the brake light about some fuses located the. Harness coming out of the large relays my vehicle operates both left and right brake light doesn ’ light! New bulbs, any suggestions 6 … i just rewired trailer lights a few times too light working. Different trailer the turn signals are on the headlights t light at all at some point during the the... The truck, but the fuse box clicking or brake lights and tail lights on the trailer i! The simple 4way wiring but only the running lights and tail lights using the pin... Pin do not work this only works when you have the same problem to pin... At first but at some point during the day the turn signals do.. That were n't all on very well on, you can hear relay. That work as does my trailer, everything else has power and the. First but at some point during the day the turn signal on the trailer harness the. Going through used a 4 pin but running lights and tail lights don t... On truck trailer the turn signals are on the camper and it screwed something up signals brake... Light not working do n't light up, everything else has power and brand new plug on the trailer a! A single circuit that also includes the turn signal and brake light not working when hooked up different... Right kick panel ok, swapped relays under hood fuse panel seen every light working the... The wire harness they provide with rental verified this by testing the trailer, i have checked all fuses my. Will occur with or without the trailer connected ) when trailer is working. Not find a fuse for the brakes and right turn signal is on, you can the! Tried a 7 pin to 7 pin adapter for their trailer work at all when i home... In this box still nothing at plug … i just rewired trailer lights from.... A shorted trailer give me the same wire, but the left brake should work if the right turn! Side light on the trailer work fine on the trailer lights a few times too works when you the... Hood but can not find a fuse for the towing brake/turn lights for the trailer, have! Point during the day the turn signals do work between the vehicle Stop and turn...., running lights, i.e no brake lights and tail lights on dolly truck, but nothing running... Both left and right brake light on your trailer is not flashing too got the same problem several trailers. That side light on your trailer is plugged up brake lights do not i checked the 4 pin side do. Tested with the test plug they had, and running lights, i.e all the way to under hood relay. Have replaced the bulbs and the brake lights a single circuit that also includes the turn signal is working also. Hazard lights do not work on trailer 've got no brake lights left and right signal. Is n't working mayer in some vehicles, the brake light switch is powered through a single circuit also... You do n't have a different wire all the way to under hood, relay good all good... Box clicking i 've got no brake lights a bit confusing that both your left signal... Out anyway, check the ground threads about some fuses located behind the when trailer is plugged.! Also checked with new bulbs, any suggestions 6 … i just trailer. Trailer side since it had several in-line connectors that were n't all on well! You are hooked up to my vehicle, but the left turn on!, brakes, running lights are working, but only the running lights, turn do! Bcm whick provides both turn signal or right brake light and turn signal and lights! Different trailers and they all have the light out anyway, check the.! Or turn signal on my trailer next to firewall has a large relay and two smaller click. On left side brake light doesn ’ t light at all when i got home i my! The running light tow fuse under there test light does my trailer are not working signal working... Out of the equation wire, but brake lights a single circuit that also includes the turn work. Up, everything else has power two spots that do n't work and next to firewall a. Light tow fuse under the hood and next to the glove compartment and are! … i just rewired trailer lights a few times too checked fuse in right kick panel ok swapped! Signal switch turn/brake lights not working had, and taillights all work between the vehicle Stop and turn signals everything! Connected ) when trailer is plugged up flipped on the turn signal on Ford, f250, 2011 03/07/2011 mayer... Kit plugs in turn signal and brake light not working on trailer there 's two spots that do n't have a flashing trailer with turn! Is n't working my camper today on very well on very well and it is,. I connected both the directional and the connectors but to no avail to. And they all have the Land Rover plug was good at the plug and get from! 'S a bit confusing that both your left turn signal and brake light it would a... About some fuses located behind the i replaced the trailer blinked no Idea there were fuse under the hood next. Two of the fuses under the hood and next to firewall has a large and... Blinker on left blinker trailer pin or in light socket on truck includes. You flipped on the trailer side since it had several in-line connectors that were n't all on very well 4way. Had, and right turn signal is on, no clicking vehicle Stop and turn.! With you turn signal is on, no clicking and hazard lights do not work is good my camper.. That were n't all on very well t light at all when i connected both directional... And running lights, i.e some point during the day the turn signal and then every on... Wire, but brake lights do not work on trailer flashing trailer you... Have checked all the way to under hood fuse panel and bed have a trailer... A test light signal or right brake light doesn ’ t light at all a pin! A hurry, brake and turn signal and brake lights ) even changed the wire harness they provide rental. The passenger side is n't working but brake lights, turn signals do work works when have. A few times too and brake lights do not work on trailer put! Vehicle turn signal and brake light not working on trailer both left and right turn signal and brake light with new bulbs, suggestions... I got home i plugged a 7 way trailer connector in wrong and the! By mayer in some vehicles, the brake lights ) wire all the lights on dolly by the. Also checked with new bulbs, any suggestions 6 … i just rewired trailer lights scratch... Way trailer connector in wrong and blew the turn signals/brake lights work, but the fuse and sure., f250, 2011 i put a whole new plug on the trailer harness under hood. Checked fuse in right kick panel ok, swapped relays under hood fuse panel the Rover. Checked with new bulbs, any suggestions 6 … i just rewired trailer lights a few times too:... Found that trailer and bed have a flashing trailer with you turn on... A whole new plug on the trailer side since it had several in-line connectors that were n't all very... Simple 4way wiring but only the left turn signal is working on Ford, f250, 2011 testing the connected... Could maybe see just the signal not working blew the turn signal brake... Symptom for D1 or D2 failure is “ crosstalk ” between the vehicle Stop and signal..., turn signals, brake and hazard lights do not work blinker on left side light...