I disconnected every thing I installed, replaced the fuse and tested with a test light.al. He has tackled most automotive and technical subjects throughout his media career, which has seen him contribute to such illustrious journals as Caravan World, Camper Trailer Australia, Wheels, 4X4 Australia and Motor. Purchased a direct plug and play 7-pin trailer connector. You need to make sure that you choose a connector with the appropriate number of pins for the required functions of your trailer or towed vehicle. Phil has been a motoring writer for more than 20 years. Phil is a long-term vehicle tow-tester and also the former owner of a 1979 Viscount Grand Tourer, which he restored before selling it to make room for his next project: a mid-1980s Windsor Windcheater. 7 Pin Trailer Plug Replacement MudRFunR 16.9K subscribers Subscribe 452 Share 125K views 6 years ago A detailed video of replacing a 7 pin trailer plug. Hopkins Towing Solutions Endurance 40950 Multi-Tow 7 Blade and 4 Flat Vehicle Wiring Kit, Black. Hopkins 40985 Universal Multi-Tow Harness Connector. In this scenario, the plug was fitted into the number plate aperture in the bumper bar. Reese Towpower 78118 Professional Wiring Adapter, 7-Way Blade to 4- or 5-Way Flat, LED Circuit Tester,Regular. The switch has a cable that attaches one end to the tow vehicle, and the other end to the switch so if the trailer gets too far away from the tow vehicle, it pulls the pin to ‘Flip’ the switch. Refit the body of the connector to the connector securing point. There is a pin switch that turns the brakes ‘ON’ if the trailer does disconnect. (Expect some voltage drop from the battery to the trailer connector.) Using a multimeter set to 12V, reconnect the battery and check that the connector circuits are functioning. The position and number must correspond with the wiring diagram supplied with the plug. STEP 7:The end cap and sealing plug is fitted to the cable before securing wires to the terminals. And as there was no corrosion to the vehicle connector, stripping back of the wire insulation was not required. This illustration shows the trailer plug. colour.Īfter the old plug wires are unscrewed, observe that the wire insulation matches with the position on the new plug. The new and old plugs must have identical terminal numbering and wire insulation. The plug cover end should be unscrewed before unclipping the plug body and forcing it open. How do I unlock the back section of a stock Ford 7 Pin trailer connector so I can get the old one out of the bracket Thanks asked by: Bob W Expert Reply: Do you see the white plastic piece in the shape of a U in the picture that you sent me You will need to pull that piece out away from the harness to release it from the rest of the 7-way. Gather your ‘tools of the trade’: multimeter, small screwdriver, wire stripper – plus replacement plug.ĭisconnect the vehicle battery’s positive terminal. Here, we demonstrate a step-by-step installation of a new trailer plug on a tow vehicle. This means that if a towing vehicle has an outlet of this type it should be able to connect a trailer with a standard 7-pin or 5-pin connector according to. Every time the cable flexed a certain way lose trailer. But before you start disconnecting and stripping wires, why not simply replace the complete plug.Īny ‘jack of all trades’ can perform this DIY job, which should be comfortably completed in around half an hour. Here was the issue: The 7-6 Pin connector I was using was old. Connections can fail due to corrosion or metal fatigue. Hope this helps.Replacing a plug or trailer connector is not only inexpensive but also a relatively easy assignment. On the right tail light I believe it was the white with purple stripe is green (RT). White goes to black (seems backwards but haven't had any issues). Brown (pwr) goes to white with orange stripe. On the left tail light I did the yellow (LT) onto the white with green stripe. That being said, I wired my plug into my tail lights. If you have an electric brake or hydro/electric brake system things more complicated and colors start crossing. Our extensive stock of 7-Pole, 6-Pole, 5-Pole & 4-Pole Pollak plugs & sockets ensures we have the solution for any. Now are short white and blue wires, those go to the brake actuator to keep the brakes from locking up while backing up. Universal Pollak trailer & RV connectors. Even different makes and model vehicles use different color wires, which is quite aggravating. Something to keep in mind is trailer wire colors and vehicle wire colors are NOT the same. If you're wanting to wire your plug into your harness I can help with that.
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