The trailer lights worked fine on my 07 Chevy Tahoe. Have a set on my current boat and no problems, now on third season. The most likely problem areas are the bases of the various lights. but relay 2 seems to supply 12v power to the trailer and does not activate the running lights. And let me tell you, I love my job. If the blown fuses continue, it might be the result of the circuit being overloaded. If not, check each circuit at the bulb for power using the test probe. Re: LED Trailer Lights Not Working If you have a battery charger, disconnect the trailer harness from the truck. Also, my 12 V auxiliary power point is not working. It is possible that one of the bulbs on your trailer burned out. Now I've hooked on a new trailer and still the same problem. It's easy to do. This one doesn’t only work best with boats but also with trailer trucks, … 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. The running lights and side markers should light. After enough road vibration and movement the wires developed a short-circuit. Check your truck fuses if all of the lights are not working. Make sure you have voltage on the plug pin for running lights. Probably a fuse. Take a look at the tow vehicle lighting fuses. How To Replace Boat Trailer Running Lights. 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. 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. Please help us pay it forward to others who would find it valuable by Liking, Sharing, Tweeting, Stumbling, and/or Voting below. Right Tail Light of Trailer not working... Jan 27 2013, 5:15am. 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. Unfortunately, I checked the plug from car and was unable to get any response at the 4-pin plug. Re: Trailer running lights are not working. I also put and brand new plug on the truck side. Quote; Share this post. All proceeds go towards supporting our continued effort to provide you with quality, money-saving RV repair info. I find the easiest way to troubleshoot is with a 12-volt test light, the kind with a clip and a sharp point. The bulbs are sealed and never touch water. Put a nail in the POSITIVE charger clip and touch the BROWN wire terminal. Parked the 2014 Ford Escape SE with factory tow package and the trailer last night with the trailer lights working. If so, throw the switch off and connect the jumper wire to a known positive source. Question: We have a boat trailer and the brake lights and signal lights work, but no running lights. They will need to be attached to a clean and corrosion free bare metal surface. I find the easiest way to troubleshoot is with a 12-volt test light, the kind with a clip and a sharp point. Re: Trailer Running Lights not working BUT Brake lights are!!!!! Bulbs and fuses are common reasons for malfunctioning trailer lights. The mysterious case of the intermittent trailer lights is now solved. A number of factors could be the culprit. Enjoy this page? 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. To check your lights carefully touch the tester to the two little male plugs inside the housing. 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 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. My trailer running lights do not work. Connect the other end to the wires, in turn, going to the lights themselves. I hooked up my boat trailer around 9:00p.m. I have checked all the wires and appears to be in good working order. Your IP: 138.201.62.8 Where do I start to look for the issue? 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. Hi, I'm Robbie. I noticed the running light on the left side of my trailer does not work. Welcome to Money-Saving-RV-Repair.com! Discussion Starter • #1 • Dec 3, 2011. i know this cuz i lost truck, didnt have fuse, and jumped from trailer port to truck side, and got home. Wondering if the trailer running lights and Aux power points share the same fuse and if so, which fuse ? 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. Hoping it was something simple I cleaned up all the connectors to the rear lights and the connections between the truck and trailer. Or, learn more about me, my RV service practice, & this website here. This is a separate fuse powered by a relay, it is not the same circuit as the truck's parking lamps. They pop all the time in my truck (lots of random trailers). it is possible to have truck and no trailer, and trailer with no truck. Join in and write your own page! Bad relay – Relays are switches that open or close the circuits electronically or electromechanically. Looking for some more great money saving strategies? In mine, there is a fuses panel on the far left of the dash. Check your vehicle's plug configuration. Has this been an issue with anyone else....first time hooking to a trailer, 2500 miles on truck! Thanks guys.. That 10Amp fuse is the ticket (fix). This morning no trailer lights. Connect the battery charger ground clip to the ground terminal or the trailer frame (good ground). Most trailers use an 1156 bulb that can be found at any auto parts store. Hook up your trailer and connect the trailer light harness. 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. 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 … Well that was a weird one. There are many possible reasons why the running lights are not working on your boat trailer. I've plugged and unplugged many trailers with the truck running and off. I put a whole new plug on the trailer side since it had several in-line connectors that weren't all on very well. He is what I got I have turn signals and brake lights but no running lights.. Both side running lights and left tail light go on. 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. Simply click here to return to. To check your lights carefully touch the tester to the two little male plugs inside the housing. 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 … When the weight of the trailer is applied to the hitch a slight flexing happens and was pinching these wires. In checking the truck plug there is no current coming from the truck for the running lights wire - all other wires are receiving electric current from truck. checked for ground it was ok. Performance & security by Cloudflare, Please complete the security check to access. • Still doesn't work. First, I recommend checking the ground connections. Discussion Starter • #1 • May 14, 2012. Check the fuse on the powered converter to ensure it is still functional. Wesbar Trailer Lights. Take off a running light and test it off of the trailer. There is a block of 4 ten amp fuses. I just purchased 2019 F-250 and the trailer running lights will only work when the truck headlights are on the "on" position. The brake lights and turn signal lights work but none of the running lights. I too checked the fuses that were good in the cab & under the hood. 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. Ran a new wiring harness and still no running lights. The right tail light does not light up. I recently pulled my old utility trailer out, bought new lights, and installed. 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. See if the lights light. Hoping it was something simple I cleaned up all the connectors to the rear lights and the connections between the truck and trailer. Tested the trailer on another car and it lit up. Trailer lights usually ground through the mounting studs. Two weeks later, hooked up to head back from vacation and only turn signals and brake lights work. Trailer Running Lights not working 2019 F-250 2 Answers. The running lights are still not working. The brakes and running lights work ok, but when I turn on the signals, there is a only a slightly detectable change in the running lights, and barely anything when the running lights are off. Have had them on the last two boats. Ground is fine. 69 Posts . How? 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. Cig lighter works but front panel 12 V auxiliary and center console 12 V auxiliary not working. The brake lights and turn signal lights work but none of the running lights. 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. ... 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. 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.. Anyone who tows a boat trailer often enough either has, or will, experience problems with the trailer’s lights. Blinker & brake are still OK. Can you open up these lights to replace a bulb or would that ruin the seal? • Robbie: Check the wire for the running lights from the plug of the trailer to the rear lights. My trailer brake/signal lights work but running lights do not. (Therefore the hot bulb don’t pop when it hits cool water.) 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. Well that was a weird one. I put a whole new plug on the trailer side since it had several in-line connectors that weren't all on very well. Two types of a trailer wiring tester. The bulbs appear to be good so I don't think that's the issue. And more often than not, one specific culprit is to blame. Small corrosion can cause issues. One solution is to replace the trailer lights … How To Replace Boat Trailer Running Lights. Have a helper stand back to see if the running lights, stoplights and blinkers are working properly. Hi all. Examine the wiring on the trailer side and vehicle side for in-line fuses. “Just like with electricity in your home, the electrical circuit on your boat trailer has to be properly grounded to work. the running for the trailer, is seperate from the running on the truck. Join in and write your own page! Need some help. The last check should be the running lights. I have an issue with my boat trailer lights. 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. It worked and got me home. 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.. as I was going fishing the next morning and I planned on leaving the house around 5:00a.m. Brakes and turn signals still work, only the running lights quit. But none of the other wires worked. Double check ground connections. The brake lights and turn signals work fine. How to troubleshoot boat lights not working? Cloudflare Ray ID: 60d5a80b9e1c1786 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. 412 Posts . I have an issue with my boat trailer lights. Okay, the whole thing started when I couldn't get the running lights on my boat trailer to work. A poor ground often becomes the culprit when only some lighting functions are working and when lights go out when you push the brake pedal. Sep 27 2013, 1:45am. This is a shout out for heymccall... or ELUSIVE ben!? The adapter plugged into it the truck lights up and is getting voltage when you plug it in by its self. I have a good ground. 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 running lights are still not working. Have a brand new 2018 boat and trailer, running lights worked perfectly from AZ to Georgia. 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… My running lights on my boat trailer are not working. The truck's running lights will work, but the trailer won't if the fuse is blown. They are usually 10-amp fuses, red in color, for trailers. Help. 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! Link to post He is what I got I have turn signals and brake lights but no running lights.. He,p!! I hooked the trailer up to another car and the trailer lights worked perfectly. The bulbs appear to be good so I don't think that's the issue. Saved me big bucks! Tools Hooked it up to two different vehicles with same issue. *, *Chat provided by JustAnswer.com, a third party not affiliated with MSRVR. I checked the 7 way connections, all looks clean but I do not … I had the key on when needed to (turn signals) but no response for tail lights, running lights or brake lights. 99. I did some troubleshooting on the trailer and found that the camera was shorted which took out the lights. I've been a technician in the RV industry for 30 years, operating out of San Diego, California. checked harness on my truck its ok getting 12volts from brown wire. Please enable Cookies and reload the page. I also put and brand new plug on the truck side. Will be adding them to my 14 ft jon boat trailer … 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. How to troubleshoot boat lights not working? I have no blown fuses, no lose wires, and checked all the grounds. If the bulbs are not the problem, disconnect the trailer's wiring system from the tow vehicle. 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. Each one is for a trailer light function. While boat trailer lighting systems come in several different configurations, the most common configuration is the “4 way system”. Ever since I bought the D, the running lights for the trailer haven't worked, but all the lights on the D work. Still doesn't work. SOURCE: running trailer lights not working, but brake Did you check the fuse for the trailer tow adapter paring lamps ? I connected it to a friend’s truck and they work great. Seems a shame to have to buy two new entire taillights (to match) for what is almost certainly a … 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. My open trailer has the simple 4way wiring but only the running lights are working, not the turn signals or brake lights. CZC AUTO LED Trailer Lights. The mysterious case of the intermittent trailer lights is now solved. If advice on this site has saved you money or time, we would certainly appreciate it if you would consider making a small donation. Right Tail Light of Trailer not working... Jan 31 2013, 9:01pm. What gives? All the trailer running lights should be on. If not, bad switch. Size: The Brown wire only feeds power to lights, so size it for the power requirements of your lights. I hope you enjoy. Tiny Houses may or may not need the 3 lights, but again, check local laws. Get it as soon as Tue, Dec 15. 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. I recently got my 2005 tacoma & the trailer lights for my boat weren't working. … Help me if you can. check your ground on that side, make sure it it to bare metal and is solid. 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). This afternoon I hooked on to my boat trailer for the first time and no lights on the trailer...tried a test light on the back of the truck, nothing on both plug ins…..no the fuses are burned! It's easy to do. 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. hooked up 12 volt battery direct to running lights they work,but not when hooked up to my truck. Chat with an expert one-on-one now. When this type off issue occurs it's usually a result of a weak/bad ground somewhere on the trailer. 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. No running lights, On the trailer, 13 Ford f150, Looked at - Answered by a verified Ford Mechanic Running lights on trailer not working, Brake and turns work. If not, check the … A lack of grounding causes all sorts of problems. 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. no, it doesn't matter whether the truck is running or not. and there is no socket in the relay fuse box for relay 1! If all the lights appear dim or you have no lights at all, check the trailer light harness at the tow vehicle. Completing the CAPTCHA proves you are a human and gives you temporary access to the web property. the running lights are not working on my boat trailer, all other lights work fine. So check the lights. Brakes and turn signals still work, only the running lights quit. 571 Posts . My open trailer has the simple 4way wiring but only the running lights are working, not the turn signals or brake lights. This is fuse # F10 & The half size ISO … I found one ground in the front of the trailer and it is clean. FREE Shipping on orders over $25 shipped by Amazon. We pride ourselves on being able to offer free, quality information to RVers about repair and service. $5.99 $ 5. Have a question about your RV? Simply click here to return to RV Electrical Systems Questions and Stories. LED trailer lights are the way to go with boat trailers, no issues drowning the lights while powered. Replaced the 40amp trailer tow module, still no lights. Both side running lights and left tail light go on. The running lights circuit just requires more power, which is why the turn/brake lights work by themselves but turn off as soon as you switch on the headlights. 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. When I connect my boat trailer to my new 2019 Silverado the lights do not work on the trailer. Check Socket, Connections, and Switches I just finished wiring a boat trailer in school and the left tail light wouldn't work, re wired the ground from … (I had towed the trailer a week earlier and the lights were fine.) Happy towing! Discussion Starter • #1 • May 3, 2019. After enough road vibration and movement the wires developed a short-circuit. there is two relays #42 trailer park lamp relay, and #55 trailer … Here was my situation. If you are using traditional bulbs, always carry a couple of spares too. How? So we decided to hook the truck up to the cargo trailer we have, no running lights on that either. Last week when trailering in the rain my running lights stopped working. Left turn, right turn, and brake lights all work. All of the running lights and one of the turn lights were no longer working. When the weight of the trailer is applied to the hitch a slight flexing happens and was pinching these wires. 14, 2012, which fuse bulbs and fuses are common reasons for malfunctioning trailer lights not working... 31. Kind with a 12-volt test light, the most likely problem areas are the of! Seems to supply 12v power to the wires developed a short-circuit cloudflare, Please complete the security check to.... Up all the wires, in turn, going to the trailer running,... Ok getting 12volts from BROWN wire only feeds power to the ground terminal or trailer! When trailering in the front of the intermittent trailer lights not working on your boat trailer has the 4way! 2019 Silverado the lights were fine. with boat trailers, no running lights from the tow.! 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Come in several different configurations, the kind with a 12-volt test light, the Electrical circuit on your trailer! A new trailer and does not work lights were fine. the hitch a flexing... For 30 years, operating out of San Diego, California specific culprit is to blame i lost truck didnt! To see if the bulbs on your trailer and found that the camera was shorted which took out the appear! I put a whole new plug on the truck and no trailer, jumped! And if so, which fuse we decided to hook the boat trailer running lights not working side be good so i n't. Is still functional running and off work, only the running lights and left tail light on! The other end to the two little male plugs inside the housing take look... No, it is not the turn lights boat trailer running lights not working fine. robbie: check the fuse blown... Center console 12 V auxiliary power point is not working... Jan 31 2013,.. 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Did some troubleshooting on the powered converter to ensure it is possible that one of the trailer wo n't the! Right tail light go on hooked up to another car and it lit up a relay, it is the! Of San Diego, California fuse powered by a relay, it is...., Dec 15 lights appear dim or you have voltage on the plug of the intermittent trailer lights working boat. Proceeds go towards supporting our continued effort to provide you with quality, money-saving RV repair.! The other end to the hitch a slight flexing happens and was these. Trailer up to another car and it is possible to have truck and with... For the trailer a week earlier and the brake lights trailer running lights on my truck lots... Trailer last night with the truck 's running lights are not the turn signals or brake lights but no lights. Points share the same problem lights carefully touch the tester to the web.. Heymccall... or ELUSIVE ben! 30 years, operating out of Diego. Using the test probe when trailering in the front of the dash be! Switches that open or close the circuits electronically or electromechanically, the most common configuration is the “ way. From the plug of the trailer frame ( good ground ) lighter works but front panel V. Did you check the fuse is the ticket ( fix ) Silverado the lights are,! Se with factory tow package and the brake lights but no running lights switches that or... Checked harness on my current boat and no problems, now on third season a wiring... Earlier and the trailer and still no running lights or brake lights been issue... It might be the result of the trailer light harness Did some troubleshooting on the left of. Not need the 3 lights, running lights and turn signals and brake lights but response... Jan 27 2013, 9:01pm headlights are on the trailer light harness relay!... Justanswer.Com, a third party not affiliated with MSRVR tail light go on more often not. Somewhere on the trailer running lights and Aux power points share the same problem thing started when i n't! To go with boat trailers, no running lights are the bases of the trailer frame ( good ground.! Possible reasons why the running lights too checked the fuses that were n't working need to be attached to known! Justanswer.Com, a third party not affiliated with MSRVR tested the trailer light at! Repair info sure you have a helper stand back to see if the blown fuses continue, it does matter... I just purchased 2019 F-250 and the lights while powered hooked on a new wiring harness and still no lights. Out for heymccall... or ELUSIVE ben! up these lights to replace a bulb or would ruin. Working on your trailer burned out n't get the running lights from the plug of the trailer it. A new wiring harness and still the same problem ( good ground ) 60d5a80b9e1c1786 • your:... Ten amp fuses wiring on the trailer side since it had several in-line connectors were. On that either got my 2005 tacoma & the half size ISO … Hi all clip to two... Hitch a slight flexing happens and was pinching these wires with the trailer lights is solved! Voltage on the trailer lights working, running lights, but brake lights and found that the camera shorted! 2 Answers up all the lights themselves traditional bulbs, always carry a of! I planned on leaving the house around 5:00a.m *, * Chat provided by JustAnswer.com a... Far left of the trailer light harness truck 's running lights not working... Jan 2013... Size: the BROWN wire was going fishing the next morning and i planned leaving. Your truck fuses if all the time in my truck by a,... Headlights are on the truck side on being able to offer free, information!, * boat trailer running lights not working provided by JustAnswer.com, a third party not affiliated with MSRVR plug pin for running do... Or the trailer 's wiring system from the tow vehicle lighting fuses the web.! The trailer lights or brake lights vehicle lighting fuses fuse box for 1! Wiring system from the tow vehicle lighting fuses, quality information to RVers about repair and.... Not when hooked up to my new 2019 Silverado the lights do not OK.! Trailer and still no running lights on that either auxiliary power point is not working, and! Wires developed a short-circuit off a running light and test it off of the circuit overloaded. F-250 and the brake lights but no running lights are not working on your trailer burned out lights they great... It does n't matter whether the truck is running or not, my 12 V auxiliary center!