Dielectric Grease for Electrical Connectors, 2 oz.

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• Trailer Warning Lights Flash in Vehicles Message Center
  The trailer warning lights flashing in your message center sounds like either a ground issue on the trailer or a corrosion problem between the trailer connectors. I would first start off by disconnecting the trailer connectors and using a bit of electrical spray to clean the pins. Once done, I would also use a bit of dielectric grease like part # 11755 between the two connectors before mating them back together to prevent future problems. Before you move onto the trailer wiring, I also...
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• Can Butt Connectors Be Used in Place of Quick-Splice Connectors for Installing LED Trailer Lights
  Yes, since all the running/clearance lights on your trailer will be fed by the same circuit you can use butt connectors rather than quick-splice connectors to enable a longer-lasting and more water-resistant connection. Wiring the lights as you described is fine. I also suggest using dielectric grease # 11755 in/on all connectors to prevent entry of water and contaminants that could eventually cause connectivity issues.
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• Troubleshooting Right Trailer Brake Light & Trailer Brake Controller Not Working
  Thanks for providing the details on your trailer wiring issue. Since you have three trailers that all show the same issue when connected to your 2004 Chevrolet Silverado odds are good that the problem is in the truck wiring. The first thing to check is the ground connection on the vehicle wiring harness. This wire's ring terminal must make a clean metal-to-metal connection in order to allow for all functions to operate properly. Corrosion can build up and cause issues. Try removing...
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• Trailer Brakes Not Working On A 2016 Chevrolet Silverado 3500
  The first thing you will want to do is check the inside of both the vehicle's and trailer's connectors for debris or corrosion. If corrosion is present, you will then want to spray some electrical parts cleaner on the inside of the connectors to clear the debris. The next thing you will want to do is test the 5 o'clock pin at the back of the vehicle's trailer connector to make sure it is receiving power when the manual override on the brake controller is activated, you will need to have...
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• Troubleshooting Blown Fuses on Running Light Circuit of 7-Way Socket
  The easiest way to troubleshoot your trailer lighting functions is when it is not connected to the tow vehicle. Apply 12V power from the truck's battery or a well-charged spare if you have in the garage directly to the contacts on the trailer plug. Direct power input to the trailer plug lets you test the trailer running/clearance/license plate light function in isolation, without any possible interaction with the vehicle. A set of jumper cables and two short lengths of 10- or 12-gauge wire...
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• Intermittent Trailer Braking Signal From Brake Controller
  An intermittent trailer brake signal is generally caused by one of two things. The first of which is the easiest to check and will be the ground circuit. You will want to ensure that the ground is securely attached to a bare metal surface on the frame. The other possible cause of this problem could be a corroded trailer connector. You will need to clean inside both of the trailer connectors looking for dirt and debris. Use the Dielectric Grease for Electrical Connectors part # 11755 before...
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• Troubleshooting Running Lights on Trailer Towed by 2014 Nissan Armada
  Most of the time, when trailer running lights do not work but all other lights do work properly the cause is a weak ground connection. Since running lights stay on continuously, unlike stop/turn lights, they draw more current and a weak ground may allow the other functions to operate correctly but not pass enough continuous current for the running lights. The fix is simple in this case. Find your trailer's main ground wire (and do the same thing on the wiring harness on the Armada) and...
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• Troubleshooting Brake Controller Malfunction When Trailer Plug Gets Wet
  In order to protect your circuit breaker and your controller, you do need to keep moisture out of the electrical connections causing shorts. My recommendation is to use dielectric grease # 11755 to keep moisture and debris out of your connections. Use this at any connection point to give you a more secured connection. If you don't already have a cover for your trailer connection on your trailer, I recommend replacing your connector with one that has a spring loaded cover to keep a tight...
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• LED Trailer Light Voltage Loss
  It sounds like you did it the right way this time! To track down this voltage loss, I would recommend a few things. First, make sure that your trailer and vehicle side are properly grounded to clean, bare metal. Secondly, double check all of your connections, from the trailer connector on back, checking for pinched wires. Using some dielectric grease, like part # 11755 on all of your connections, including the trailer connector, to protect against water and corrosion. LED lights actually...
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• Possible Causes for Dim Trailer Lights
  Most often the root cause for issues with trailer lighting is a weak ground. Strange as it may sound, a loose or rusty/corroded ground can cause a vehicle's trailer wiring harness to badly misbehave and shut down some functions. It may also just limit the amount of current that can flow to the lights and this will result in dim illumination. The easiest way to check the trailer ground is to disconnect it from the vehicle and apply 12V power (from a well-charged 12V battery) directly...
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• How to Correct Weak Ground Connection on Vehicle and Trailer
  A hitch ball does not make a good ground connection for trailer lighting functions. The fact that the lights work for a bit after you hit a bump with the hitched trailer tells us that somewhere in your trailer and vehicle wiring there is an intermittent ground connection. This kind of problem usually has a fairly simple fix. I suggest you locate the tow vehicle's wiring harness ground wire. This white wire needs to be firmly attached to a clean bare metal surface on the vehicle. On the...
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• Trailer Keeps Blowing Fuses on Tow Vehicle
  You are correct, if you know that your trailer is causing an issue with your fuses blowing then you will want to check the connector, wiring, and the grounds. Make sure that the connector is free of any debris or corrosion. Clean it anything out that might be there and apply Dielectric Grease # 11755 in the connector to help keep it clean and in proper working order. To check the wiring you will want to look for any places where the wire has been bent, damaged, corroded, or has exposed...
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• Trailer Disconnected Error Message
  The most common cause for a trailer brake controller to display the 'no trailer connected' error message is a damaged or corroded connector on the trailer. Corrosion can occur inside a connector too so you'll want to re-inspect both the external contacts and the back/inside of the connectors if possible for signs of any corrosion. Even slight greenish or whitish discoloration can indicate a corrosion issue, and certainly it can also happen that there can be severe corrosive build-up...
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• Troubleshooting The N.C Code Flashing On Brake Controller
  The NC means not connected, so your brake controller isn't seeing your trailer because there isn't a power draw on the brake controller output wire. Often this is because of corrosion at the connections or a bent pin. Check and clean your connections and add a little dielectric grease # 11755 to help that connection. Sometimes there needs to just be a little more of a amperage draw on that brake wire for the controller to see connection. You can use a circuit tester like # PTW2993...
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• How to Prevent Corrosion on a 4-Way Trailer Connector
  For a cover designed to fit over standard 4-way connectors we have the # C58200. Another very helpful idea will be to put dielectic grease on the pins of your 4-way. This will actually be your best way to fight the corrosion. For that you would want the part # 11755. Basically you will need to apply a liberal amount of it all over the pins of the connectors before you put the cover on the 4-way and you will not have to worry about corrosion.
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• Installing Dielectric Grease on 7-Way Plugs to Prevent Corrosion and Keep Electrical Connection
  Dielectric grease is basically just applied in a thin coating to the connector plug. You can use # 11755 or # LT37534 if you prefer a smaller amount. I've attached a video to assist. Just like the connection on the back, you can add this to the trailer pins on the front of the connector as well to keep moisture and debris out to prevent corrosion. I've attached an article to help as well.
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• New Trailer Brakes Pulse In Rhythm with the Left Hand Turn Signal
  It sounds like the brake controller is picking up some of the current from the blinkers. Installing a Pulse Preveneter, part # 5501, should remedy the issue. A pulse preventer essentially filters out the fluctuations created by the blinkers so that only the constant signal of having the brake pedal applied will activate the controller. I have added a link to the part below.
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• Troubleshooting 2003 Chevy 2500 Trailer Light Issues
  For your 2003 Chevy Silverado 2500 HD, if you are experiencing the constant hot on both the trailer and the vehicle, then it is a bad relay. If you are experiencing just the trailer staying hot, then it could be a bad relay or it could be a connection or ground issue as well. It sounds like you have tested your connections independently, but you may want to use a little sandpaper to clean your connection between your truck and trailer and use some dielectric grease like # 11755 to keep...
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• Intermittent Trailer Disconnected Message on a 2012 Ram 1500
  The intermittent trailer disconnected message that is appearing on your 2012 Ram 1500 is generally caused by corrosion in the trailer connectors but since you have already checked that we can eliminate that possible cause. I will say that although it may not appear that corrosion is present, you will still want to spray each end with some electrical cleaner and then use some dielectric grease like part # 11755 before mating them back together. Once you have cleaned and greased the inside...
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• Troubleshooting Lighting Functions on 7-Way on 2002 GMC Sierra
  The lighting problems you describe sound like the classic examples of issues caused by a weak ground. If a wiring system's ground connection is not 100-percent tight to a clean bare metal surface the system may be able to deliver enough current for some circuits to work but not enough for all of them to work at one time. In trailer wiring harness installations what usually happens is that everything works normally until the headlights/running lights are turned on. Since these lights...
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• Non-Conductive Grease Recommendation for Pins of Connector to Protect from Elements
  Dielectric grease like part # 11755 is exactly what you are looking for. This grease is non-conductive and prevents corrosion as well.
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• Tail Light Fuse on Truck Keeps Blowing When Trailer Wiring is Connected and Then Trailer is Coupled
  There are a few things that you will want to check since your tail light fuse keeps blowing when you couple your trailer. Start off by checking the connector on your truck and your trailer. Make sure that it is clean and free of debris and corrosion as that can cause power from other circuits to bleed over to the running lights. Using dielectric grease like part # 11755 on your connectors can help prevent water damage and corrosion. If the connectors look good then you will want...
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• Troubleshooting P.L. Error on Prodigy Brake Controller 90185 Installed on a 2005 Yukon XL
  I would actually check the connection between brake controller and your factory port. Often you would see the P.L. if the connector wiggled slightly loose from where it is plugged into your junction box, especially if it is only happening once in awhile. Try unplugging the brake controller from the junction box port and let it sit for three minutes. When you plug it back in, make sure the connectors are firmly clicking together. You will need to reset the controller brake power and...
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• Troubleshooting Trailer Lights that Stop Working When Headlights of Vehicle Come On
  Either your trailer wiring's running light circuit is being overdrawn and it's shutting off your lights all together or the more likely situation is that you need to improve the ground of your trailer's wiring and you'll see the lights start to work. When the headlights are turned on the highest lighting amperage draw is put on the vehicle so a weaker ground will show up in this situation. Try running a jumper wire from the ground wires of each assembly back to main ground of the trailer wiring.
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• Troubleshooting Trailer Wiring on 2004 Ford Explorer Sport Trac
  The first thing I would check on the Explorer are the fuses (and relays) associated with its trailer wiring. I reviewed an online owner's manual but no information about the fuse box (power distribution box) is included so I suggest that you check the lid on the fuse box. Usually these will have a legend that tells you which fuses are related to towing functions. Check to make sure nothing has caused one of these to blow. A short in the trailer wiring could cause a fuse to blow. If all...
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• Electric Brake Compatibility on a Boat Trailer
  Electric brakes on a boat trailer are able to be used without much issue at all. There obviously is an issue with water and electricity, so it is recommended to disconnect the trailer connection when your trailer is being submerged for launch. A few seconds after pulling out of the water, you can connect your wiring without any issues and have the functioning braking system that is easier to maintain. Many boat trailers are moving to electric systems. I do recommend using dielectric...
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• Troubleshooting Pulsing Brakes when Blinkers are On
  The right turn blinker circuit of your trailer is shorting out to the brake output circuit (signal that carries the brake controller voltage) and that is why you are experiencing the pulsating. Starting at the trailer connector on the trailer you will need to trace the wiring back from there to the brake assemblies looking for any cut or exposed wire and fix as necessary. I attached a help article on brake controllers for you to check out as well.
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• How to Secure 7-Way Wiring Harness to 7-Way Socket With Broken Locking Tab
  If your 7-way harness' locking tab broke you could replace the wiring harness if you wanted to or you can simply snug it up with a zip tie. I suggest that you disconnect the plug from the 7-way, clean the contacts as needed, apply a protective coating of dielectric grease # 11755 to block moisture and contaminants from entering and secure the harness to the 7-way with a zip tie, something like # 853-3194-02. Wiring kits for your truck are linked, for reference.
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• Troubleshooting Trailer Light Fuse that Keeps Blowing in a 2016 Toyota Sienna
  A 30 amp fuse will likely fix the problem of the fuse blowing but fuses are meant to safeguard against wiring overheating it would be dangerous to do so and could result in a fire. It sounds like you simply have a short somewhere. Start off by checking the connector on your 2016 Toyota Sienna and your trailer. Clean out any debris or corrosion and apply some dielectric grease like part # 11755 to help keep them clean and protected. If your connectors look good then you need to check...
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