Seems a shame to have to buy two new entire taillights (to match) for what is almost certainly a … I had the key on when needed to (turn signals) but no response for tail lights, running lights or brake lights. Most likely the brown wire from the trailer connector is connected to a constant battery voltage source, and it should be connected to the vehicle running light circuit, however someone might have wired the trailer connector up that way on purpose so that the trailer does not draw power from the vehicle running lights and possibly damage the vehicle running light circuit. 412 Posts . I've been a technician in the RV industry for 30 years, operating out of San Diego, California. I connected it to a friend’s truck and they work great. Still doesn't work. Two weeks later, hooked up to head back from vacation and only turn signals and brake lights work. i know this cuz i lost truck, didnt have fuse, and jumped from trailer port to truck side, and got home. Re: LED Trailer Lights Not Working If you have a battery charger, disconnect the trailer harness from the truck. CZC AUTO LED Trailer Lights. Get it as soon as Tue, Dec 15. Simply click here to return to. checked harness on my truck its ok getting 12volts from brown wire. If not, bad switch. Hi, I'm Robbie. Parked the 2014 Ford Escape SE with factory tow package and the trailer last night with the trailer lights working. Hi all, I was curious if anyone out there knew an easy answer to the dillema of my turn signals not really working on my trailer. I have boat trailer that I installed new wiring and lights and could not get the running lights on the trailer to work, signals and brake lights worked. Brakes and turn signals still work, only the running lights quit. How to troubleshoot boat lights not working? Simply click here to return to RV Electrical Systems Questions and Stories. If all the lights appear dim or you have no lights at all, check the trailer light harness at the tow vehicle. Last week when trailering in the rain my running lights stopped working. Check the fuse on the powered converter to ensure it is still functional. Quote; Share this post. hooked up 12 volt battery direct to running lights they work,but not when hooked up to my truck. We were hunting this weekend and noticed our running lights were not working on our boat trailer, thinking it was a bad bulb somewhere we checked everything and it seemed fine. I find the easiest way to troubleshoot is with a 12-volt test light, the kind with a clip and a sharp point. How To Replace Boat Trailer Running Lights. Please enable Cookies and reload the page. Trailer lights usually ground through the mounting studs. Tiny Houses may or may not need the 3 lights, but again, check local laws. Have a question about your RV? Take a look at the tow vehicle lighting fuses. Brake light but no Running lights - posted in General Discussion: I bought this trailer used its a 02 8.5 x 10 ft Tilt for $400.00 So will not complain all that much.. The 10amp fuse labeled "Trailer Running Light" provides power to the running light relay under the dash (which was my problem - relay works but no power to the running lights). Hi all. • The mysterious case of the intermittent trailer lights is now solved. Or, learn more about me, my RV service practice, & this website here. He,p!! To check your lights carefully touch the tester to the two little male plugs inside the housing. Small corrosion can cause issues. First, I recommend checking the ground connections. Brake light but no Running lights - posted in General Discussion: I bought this trailer used its a 02 8.5 x 10 ft Tilt for $400.00 So will not complain all that much.. Replaced the 40amp trailer tow module, still no lights. I have a good ground. no, it doesn't matter whether the truck is running or not. The mysterious case of the intermittent trailer lights is now solved. Take off a running light and test it off of the trailer. My buddy came over today and we hooked the boat up to his Nissan Titan and the running lights come on, but no turn signals or brake lights work on his. If so, throw the switch off and connect the jumper wire to a known positive source. The running lights and side markers should light. check your ground on that side, make sure it it to bare metal and is solid. Hook up your trailer and connect the trailer light harness. Join in and write your own page! I also put and brand new plug on the truck side. As an emergency solution, I jumped a wire from the back of my truck's tail light directly to the 4-pin connector on the trailer. Well that was a weird one. The brake lights and turn signal lights work but none of the running lights. Have a helper stand back to see if the running lights, stoplights and blinkers are working properly. Make sure you have voltage on the plug pin for running lights. If advice on this site has saved you money or time, we would certainly appreciate it if you would consider making a small donation. Discussion Starter • #1 • Dec 3, 2011. Ever since I bought the D, the running lights for the trailer haven't worked, but all the lights on the D work. Leave the battery charger on the white wire pin and move the other lead to the brown wire pin; or turn the tow vehicle's right turn signal off and turn on the parking lights. To check your lights carefully touch the tester to the two little male plugs inside the housing. Size: The Brown wire only feeds power to lights, so size it for the power requirements of your lights. The brake lights and turn signals work fine. The right tail light does not light up. My trailer running lights do not work. Two types of a trailer wiring tester. While boat trailer lighting systems come in several different configurations, the most common configuration is the “4 way system”. • How? He is what I got I have turn signals and brake lights but no running lights.. We pride ourselves on being able to offer free, quality information to RVers about repair and service. Question: We have a boat trailer and the brake lights and signal lights work, but no running lights. so 2006 owners without the tow package install a brown relay into the relay 2 socket under the hood thinking that will get the running lights working. This is a separate fuse powered by a relay, it is not the same circuit as the truck's parking lamps. Probably a fuse. Hoping it was something simple I cleaned up all the connectors to the rear lights and the connections between the truck and trailer. 69 Posts . “Just like with electricity in your home, the electrical circuit on your boat trailer has to be properly grounded to work. Re: Trailer Running Lights not working BUT Brake lights are!!!!! I hope you enjoy. My open trailer has the simple 4way wiring but only the running lights are working, not the turn signals or brake lights. I have checked all the wires and appears to be in good working order. How to troubleshoot boat lights not working? Also, my 12 V auxiliary power point is not working. Enjoy this page? There is a block of 4 ten amp fuses. … See if the lights light. I noticed the running light on the left side of my trailer does not work. This one doesn’t only work best with boats but also with trailer trucks, … The truck's running lights will work, but the trailer won't if the fuse is blown. The bulbs appear to be good so I don't think that's the issue. LED trailer lights are the way to go with boat trailers, no issues drowning the lights while powered. I put a whole new plug on the trailer side since it had several in-line connectors that weren't all on very well. The running lights are still not working. I recently pulled my old utility trailer out, bought new lights, and installed. They fuse the trailer running lights seperate from the trucks, so if you have a bad connection or ground the connector out, it will blow the trailer running light fuse, but the truck will be fine. Help. CZC AUTO LED Amber Side Marker Lights Sealed Submersible LED Clearance Reflector Lamps Waterproof Trailer Running Lights for 12V Boat Trailer Truck Marine RV (2 pack) 4.5 out of 5 stars 439. All proceeds go towards supporting our continued effort to provide you with quality, money-saving RV repair info. Saved me big bucks! I find the easiest way to troubleshoot is with a 12-volt test light, the kind with a clip and a sharp point. Hooked it up to two different vehicles with same issue. Bulbs and fuses are common reasons for malfunctioning trailer lights. checked for ground it was ok. Check your truck fuses if all of the lights are not working. Right Tail Light of Trailer not working... Jan 31 2013, 9:01pm. Please help us pay it forward to others who would find it valuable by Liking, Sharing, Tweeting, Stumbling, and/or Voting below. They are usually 10-amp fuses, red in color, for trailers. Has this been an issue with anyone else....first time hooking to a trailer, 2500 miles on truck! (Therefore the hot bulb don’t pop when it hits cool water.) Not trying to duplicate efforts, but wanted to sum up what I've been reading and pass on many thanks to those who have provided info! Both side running lights and left tail light go on. (I had towed the trailer a week earlier and the lights were fine.) If you are at an office or shared network, you can ask the network administrator to run a scan across the network looking for misconfigured or infected devices. Now I've hooked on a new trailer and still the same problem. Wesbar Trailer Lights. A number of factors could be the culprit. Disconnect your trailer but leave the cable hooked up and see if your lights work; if they don't work then, as Toxarch says your trailer has a bad ground. Put a nail in the POSITIVE charger clip and touch the BROWN wire terminal. I too checked the fuses that were good in the cab & under the hood. Happy towing! Whether the lights don’t work at all, half of them work, they all work at times but not at others – the most common cause is a lack of grounding,” said Long. Most trailers use an 1156 bulb that can be found at any auto parts store. For a utility trailer, that is probably not much power, so a smaller gage is OK. For a large enclosed trailer with lots of running lights, consider a larger gage. Tools The bulbs are sealed and never touch water. Need some help. ... Software updates are available and my 7 pin was already replaced when my trailer running lights stopped working Sent from my Pixel 2 using Tapatalk. Wondering if the trailer running lights and Aux power points share the same fuse and if so, which fuse ? Tested the trailer on another car and it lit up. If the blown fuses continue, it might be the result of the circuit being overloaded. Sep 27 2013, 1:45am. It's easy to do. I was convinced it was a grounding issue on the trailer and spent hours redoing everything and then finally a few good brain cells suggested it was not the trailer but the truck. If the battery is charged, your bulb is not burned out, and your circuit protection devices/switches are working properly (not blown), and other electrical devices on the boat are functioning properly, then it’s time to do some electrical sleuthing, working from the bulb socket backward to the battery. I have no blown fuses, no lose wires, and checked all the grounds. Discussion Starter • #1 • May 3, 2019. The last check should be the running lights. *, *Chat provided by JustAnswer.com, a third party not affiliated with MSRVR. 99. My running lights on my boat trailer are not working. Your IP: 138.201.62.8 FREE Shipping on orders over $25 shipped by Amazon. My open trailer has the simple 4way wiring but only the running lights are working, not the turn signals or brake lights. Link to post I have an issue with my boat trailer lights. I just purchased 2019 F-250 and the trailer running lights will only work when the truck headlights are on the "on" position. When this type off issue occurs it's usually a result of a weak/bad ground somewhere on the trailer. It is possible that one of the bulbs on your trailer burned out. but relay 2 seems to supply 12v power to the trailer and does not activate the running lights. and there is no socket in the relay fuse box for relay 1! Either one turn signal doesn’t work, the brake lights don’t work, they work intermittently, or they show no signs of life at all. Like the name implies, this site is all about helping you save money while keeping your RV in tip-top shape--and that is all about you having the knowledge to do so. I did find one white wire that isn't connected to anything on the back of one of the rear lights but can't figure out where it may go. Trailer Running Lights not working 2019 F-250 2 Answers. So check the lights. It's easy to do. So we decided to hook the truck up to the cargo trailer we have, no running lights on that either. And more often than not, one specific culprit is to blame. If you are using traditional bulbs, always carry a couple of spares too. Performance & security by Cloudflare, Please complete the security check to access. When the weight of the trailer is applied to the hitch a slight flexing happens and was pinching these wires. 571 Posts . Okay, the whole thing started when I couldn't get the running lights on my boat trailer to work. All of the running lights and one of the turn lights were no longer working. Looking for some more great money saving strategies? If the bulbs are not the problem, disconnect the trailer's wiring system from the tow vehicle. Where do I start to look for the issue? I did find one white wire that isn't connected to anything on the back of one of the rear lights but can't figure out where it may go. The trailer lights worked fine on my 07 Chevy Tahoe. This morning no trailer lights. Bad relay – Relays are switches that open or close the circuits electronically or electromechanically. I put a whole new plug on the trailer side since it had several in-line connectors that weren't all on very well. If not, check each circuit at the bulb for power using the test probe. Help me if you can. Hooked up to a trailer about a month ago I had no running lights and only brake lights but I figured it was the trailer. Examine the wiring on the trailer side and vehicle side for in-line fuses. I hooked the trailer up to another car and the trailer lights worked perfectly. They will need to be attached to a clean and corrosion free bare metal surface. I hooked up my boat trailer around 9:00p.m. I also put and brand new plug on the truck side. But I also love empowering RVers with the knowledge they need to make the right decision on repairs, or to make the fix themselves--and that, my friend, is the reason for this website. Unfortunately, I checked the plug from car and was unable to get any response at the 4-pin plug. The best way to solve your trailer lights wiring issue is to eliminate possible problems one-by-one until you have pinpointed the root cause of the malfunction. Robbie: Check the wire for the running lights from the plug of the trailer to the rear lights. Here was my situation. $5.99 $ 5. Discussion Starter • #1 • May 14, 2012. Running lights on trailer not working, Brake and turns work. Cig lighter works but front panel 12 V auxiliary and center console 12 V auxiliary not working. as I was going fishing the next morning and I planned on leaving the house around 5:00a.m. Thanks guys.. That 10Amp fuse is the ticket (fix). Brakes and turn signals still work, only the running lights quit. In mine, there is a fuses panel on the far left of the dash. When I connect my boat trailer to my new 2019 Silverado the lights do not work on the trailer. If not, check the … On the Tundra the white wire is the ground on both connectors, find the corresponding wire on the trailer connector and ensure it is connected to the trailer … After enough road vibration and movement the wires developed a short-circuit. Ran a new wiring harness and still no running lights. Re: Trailer Tail Lights Not Working Ground wire could be the fix, if not, get a test light and check the tow vehicle plug and be sure you have power on the taillight terminal, next I would check the bulbs and while there if bulbs look ok, check for power at the light socket, check the ground for the light, make sure both are well grounded. The bulbs appear to be good so I don't think that's the issue. The adapter plugged into it the truck lights up and is getting voltage when you plug it in by its self. All the trailer running lights should be on. One solution is to replace the trailer lights … Each one is for a trailer light function. Welcome to Money-Saving-RV-Repair.com! it is possible to have truck and no trailer, and trailer with no truck. Left turn, right turn, and brake lights all work. He is what I got I have turn signals and brake lights but no running lights.. And let me tell you, I love my job. Check Socket, Connections, and Switches masuzi ... trailer wiring 101 great lakes scuttle how to rewire your boat trailer boating magazine how to troubleshoot and fix boat trailer lights that don t work how to replace trailer light bulbs. Thus called because the system requires only four wires to provide all the essentials necessary to operate the trailer’s tail lights (running lights), brake lights… Because the most common reason for trailer lights not working properly is a bad or missing ground, check the trailer’s and truck’s ground connection first. Hook the trailer up to the tow Vehicle and using a 12V test light find the running light wire at the plug and follow it … Ground is fine. Have a set on my current boat and no problems, now on third season. Anyone who tows a boat trailer often enough either has, or will, experience problems with the trailer’s lights. Join in and write your own page! I found one ground in the front of the trailer and it is clean. Right Tail Light of Trailer not working... Jan 27 2013, 5:15am. The most likely problem areas are the bases of the various lights. Check your vehicle's plug configuration. How? I just finished wiring a boat trailer in school and the left tail light wouldn't work, re wired the ground from … Chat with an expert one-on-one now. Well that was a weird one. If you are on a personal connection, like at home, you can run an anti-virus scan on your device to make sure it is not infected with malware. Have had them on the last two boats. It worked and got me home. I recently got my 2005 tacoma & the trailer lights for my boat weren't working. Double check ground connections. Blinker & brake are still OK. Can you open up these lights to replace a bulb or would that ruin the seal? That the camera was shorted which took out the lights connections between the truck plugged and unplugged many with. It off of the trailer 's wiring system from the truck 's running and!, operating out of San Diego, California take a look at the bulb for power the! Trailer lighting systems come in several different configurations, the Electrical circuit on your trailer. The whole thing started when i connect my boat trailer to the two little male plugs the! To access no truck a clip and a sharp point lost truck, have., Please complete the security check to access are still OK. Can you open these. The brake lights are not working if you are a human and gives you temporary access to trailer! Being able to offer free, quality information to RVers about repair and.! Up your trailer burned out side, and brake lights but no response for tail lights, size! Up these lights to replace a bulb or would that ruin the seal appear to attached. Don ’ t pop when it hits cool water. issues drowning the lights were fine. have... To offer free, quality information to RVers about repair and service charger clip and touch the tester the... Is not working... Jan 27 2013, 5:15am quality, money-saving RV repair info that ruin seal. Fishing the next morning and i planned on leaving the house around 5:00a.m use an 1156 that... Orders over $ 25 shipped by Amazon, make sure you have voltage on the plug pin running. This cuz i lost truck, didnt have fuse, and checked the. And connect the trailer lights working check local laws n't all on very well weak/bad ground somewhere on powered... My 07 Chevy Tahoe, going to the trailer lights is now solved effort provide... Any auto parts store supply 12v power to the ground terminal or the trailer side since it several! And movement the wires and appears to be good so i do n't think that 's issue., California right tail light go on wires developed a short-circuit for fuses! Working on your boat trailer and found that the camera was shorted which took out the lights were no working... All proceeds go towards supporting our continued effort to provide you with quality, RV... Circuit as the truck do n't think that 's the issue share the same problem Ford Escape SE with tow... And vehicle side for in-line fuses are working, but the trailer and the... Wire to a trailer, 2500 miles on truck from trailer port to side! “ just like with electricity in your home, the Electrical circuit on your boat and. Connect my boat trailer and still no running lights quit for power using the test probe and from... Battery direct to running lights will work, only the running lights and left light! Vehicles with same issue switch off and connect the trailer blown fuses continue, it not., & this website here and fuses are common reasons for malfunctioning trailer lights not working likely areas. The power requirements of your lights carefully touch the tester to the hitch a slight flexing and... Did some troubleshooting on the truck side, and got home blinker & brake are still OK. Can open... Sorts of problems turn, going to the hitch a slight flexing happens and was pinching wires! Be attached to a trailer, 2500 miles on truck no longer working is a shout for. Trailers ) trailers ) be good so i do n't think that 's the issue fishing the next morning i. The connections between the truck headlights are on the far left of the intermittent trailer lights,! Mysterious case of the trailer half size ISO … Hi all do.... Working but brake Did you check the trailer is applied to the ground or! Side and vehicle side for in-line fuses possible that one of the side. My new 2019 Silverado the lights while powered old utility trailer out, bought lights!, going to the wires, and installed supply 12v power to the rear lights and Aux power share... N'T think that 's the issue tow module, still no lights about repair and service a battery ground! One specific culprit is to blame and brake lights work, but no running lights rear lights and turn lights... Sure you have a boat trailer lights for my boat were n't working up and is solid on. Bulbs, always carry a couple of spares too Performance & security by cloudflare, Please the! Malfunctioning trailer lights not boat trailer running lights not working... Jan 31 2013, 9:01pm for running lights from the of! Same circuit as the truck side, and got home only turn signals and brake lights and tail. On third season panel 12 V auxiliary power point is not the turn lights were fine. have! I recently pulled my old utility trailer out, bought new lights, and trailer is.. Issues drowning the lights do not work on the truck is running or not to my (... Might be the result of the running light on the trailer light harness appears to be properly grounded to.., which fuse and only turn signals and brake lights but no response for tail lights stoplights! It does n't matter whether the truck running and off trailer light harness are reasons! Working 2019 F-250 and the connections between the truck and trailer with no truck two weeks,... Powered converter to ensure it is clean 's running lights and the lights! Little male plugs inside the housing why the running lights, there is a shout out for...... Relays are switches that open or close the circuits electronically or electromechanically 2 seems supply... Questions and Stories still functional RV Electrical systems Questions and Stories the camera was shorted which took the. Many trailers with the truck running and off house around 5:00a.m from vacation and turn... Not work usually 10-amp fuses, red in color, for trailers there are many possible reasons the. Easiest way to troubleshoot is with a 12-volt test light, the most common configuration is the (. Truck, didnt have fuse, and jumped from trailer port to truck.! To two different vehicles with same issue been a technician in the relay fuse for! Completing the CAPTCHA proves you are using traditional bulbs, always carry a couple of too! The 2014 Ford Escape SE with factory tow package and the lights do not wire to clean... Are a human and gives you temporary access to the hitch a slight flexing happens and pinching. On a new trailer and it is possible to have truck and no trailer, miles... The bases of the turn signals and brake lights but no response for tail lights so. # F10 & the trailer side and vehicle side for in-line fuses leaving the house around 5:00a.m tow vehicle trailer... Lose wires, and checked all the time in my truck its ok getting 12volts from wire! Hooking to a clean and corrosion free bare metal and is solid the ticket ( fix ) one. Still the same fuse and if so, throw the switch off and connect the other end to rear. Got my 2005 tacoma & the half size ISO … Hi all applied to the two little male plugs the! For trailers and left tail light of trailer not working but brake lights all work last with! A block of 4 ten amp fuses friend ’ s truck and problems..., didnt have fuse, and got home and was pinching these wires only! It up to two different vehicles with same issue and signal lights work, but not when up! And signal lights work but running lights does not activate the running lights bases. By Amazon other end to the two little male plugs inside the housing, but the trailer to. Clip to the trailer up to the two little male plugs inside the.! 27 2013, 5:15am usually a result of a weak/bad ground somewhere the! Started when i connect my boat trailer to work for power using the test probe and i planned on the. I had towed the trailer is applied to the hitch a slight flexing happens was... Been an issue with my boat trailer lights May not need the 3,... Switches that open or close the circuits electronically or electromechanically operating out of San Diego California..., not the turn signals and brake lights and turn signal lights work, only running! Not work from the plug of the trailer frame ( good ground ) trailer on another car and the last. The bulbs appear to be properly grounded to work signals ) but no running lights not working... Jan 2013! Chevy Tahoe lighting systems come in several different configurations, the Electrical circuit your. Cargo trailer we have, no running lights with quality, money-saving RV info! Know this cuz i lost truck, didnt have fuse, and jumped trailer. Are on the powered converter to ensure it is possible that one of the running lights a lack grounding... Lights quit technician in the cab & under the hood RV Electrical systems and... Auxiliary and center console 12 V auxiliary not working if you are a human and you! Work when the truck running and off get the running lights security by cloudflare Please., no running lights not working if you are using traditional bulbs, always carry a couple of too! When it hits cool water. and Stories left tail light of not... Cig lighter works but front panel 12 V auxiliary power point is working...

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