1/9/2024 0 Comments Trailer wiring 7 way![]() The ground wire should be large enough to handle the entire load do not depend on grounding through the ball. Make sure your ground wire, which is typically white, is securely attached to the frame on both the truck and trailer side. Keep in mind that it isn’t always as simple as matching the colors like you might be inclined to do. Having the wires backward will cause problems. When referencing the 7-Way RV Plug diagram, make sure you are looking at the plug the way the diagram is showing you. Download the guide below, print it and keep it in your toolbox for future reference. We are going to do our best to simplify that, mainly with a good, color coded diagram. If you’ve ever looked at a 7-Way RV Trailer Connector, you have probably stood there scratching your head in confusion. With all the abuse and day-to-day wear and tear, you may find yourself repairing or replacing one sooner or later. Here at AJ’s, we are all too familiar with the accidents people have with the plugs: forgetting to unplug and pulling away, dragging it on the ground. It is usually used for towing heavy-duty cargo trailers, aluminum trailers, dump trailers, utility / landscape trailers, equipment trailers, open car haulers and enclosed car haulers. The 7-Way Trailer Plug is around 2″ diameter connector that allows an additional pin for an auxiliary 12-volt power or backup lights. Trailers with electric brakes need them too. Most new vehicles equipped with a tow package have connectors. If I had found this post earlier, I might have tried the lower grommet route.Įverything seems to be working now.It’s the dreaded 7-Way Trailer & RV plug that we all have come to know and love. I used a straight arm style puller and managed to flex the shroud to get them into place. Removing the wiper arms was tricky because there is very little room around them to attach the puller. However, they are fairly hard to get to, so I pulled the wipers for access. I ran wires from the engine compartment to the cabin through the nipples that were shown in the video mentioned earlier. Underneath is probably easier if you have a lift (like all the youtube install videos that I found), but routing around the AWD was a pain. ![]() ![]() I originally ran the power and brake wires underneath the cabin, but would have kept everything within the cabin if I did it again. If you look for videos on doing an OEM install, they go through all the steps (same channel as mentioned before). I ran the brake sense wire within the cabin, which means pulling all the lower plastic trim and one rear seat on that side. The wiring may have changed due to mine being a different trim, or it may have just been a production change. I ended up running a wire back to the taillight, because I knew how to find that wire. ![]() To keep the 12V circuits in the trailer from possibly running down the RAV4's battery we had to remember to disconnect the 7-round cable each night. Would've been handy when my BIL and our wives were towing a Scamp trailer in Alaska. Altho the 150A rating is a little overkill the breaker/switch unit is perfect for a non-use disconnect. Installing the 4/7 pin connector fixture into the underside of the bumper is really slick.Ħ. ![]() You may need a firewall penetration at the front and a floor one at the rear but otherwise all wiring is safely inside.ĥ. Altho I've run the wiring underneath on a Honda Passport and on Pickups you have no other choice, I prefer the inside path behind the sill and side panels as I did on a RAV4. I didn't get to take to old one apart tho because they also sent a return label for it.Ĥ. I do have to say that my Curt did fail after a year but one call to them got a me a new one shipped Priority for free. When set right you can't even tell the trailer is attached when braking. After using Tekonsha, admittedly older models, exclusively for years I've switched to the Curt Triflex 51140 after my 10+ year-old Tekonsha became virtually impossible to adjust correctly. For instance in this write-up the buttons are on top of the controller and thus hard to access after installation.ģ. The choice may come down to where the adjustment controls are on the unit. Use a proportional controller as shown in this install. One of their supposed "advantages" is "mounts in any direction." I'm surprised they are even legal.Ģ. They are inexpensive BUT can't adjust braking force for speed or vehicle attitude (uphill, level or downhill). A few comments based on my installation of half a dozen brake controllers.ġ. ![]()
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