![]() ![]() If you need to connect a 4 pin trailer connector to it, get an adapter to go from 7 to 4 pins like a 7-Way to 5-Way/4-Way Trailer Adapter for Vehicles with Lamp-Out Sensors Towing Trailers with LEDs. This will give you a covered, standard 7 pin trailer connection. Your dealer or a VW dealer or online at a place like Suncoast or will sell you a Pollak Replacement 7-Pole, RV-Style Trailer Connector Socket - Vehicle End - PK11893 which will plug into the European connector and screw right where the cover was with the same screws. Remove the cover (first the 4 screws, then the latch holding the cover to the socket) and you will find a European 7 pin socket. You can now plug it back in and mount the plug using the supplied bracket or follow the hitch plug relocation mod as I did.If you have the factory installed trailer hitch, you will find a square, plastic cover with a screw in each corner to the left of the hitch. Once all the connections are made, give the new harness a good factory style electrical tape wrap to keep things neat. They are good quality and are heat shrinkable to make them water tight.Īs for the connections, assuming you bought the same plug as I did the colors are as follows:įacing the front of the connector, the pins are numbered counterclockwise starting at about 11 o clock with the notch down. I chose to crimp using waterproof crimps but you can also solder and heat shrink if you'd like.If you are looking for good crimps, I've found that Harbor Freight's are top notch surprisingly. If you got the same one I used this will mean cutting off the 4 pin plug and a few of the crimps provided.Ĭonnect two harnesses together. Open up new trailer plug and cut all wires to same length (about 12"-18"). ![]() Strip each wire about 1/8-1/4" and twist ends to prevent fraying. Disconnect the old trailer plug from harness and set aside.Ĭut off the old trailer plug connector (the big one, NOT the 2 smaller ones) leaving about 3" of wire left on plug in case you need to revert back for whatever reason. Disconnect both and cut any cable ties holding the harness in. Lay under the hitch and on the drivers side near the spring shackle you'll see two connectors. Remove factory Y harness from truck and bring to bench. I found the pin out from the FSM Here starting on page 103 I am about 98% certain it is correct though. If you want to confirm my wiring please feel free. Y harness with trailer plug side cut off: If not, you can just follow my diagram below. If you still have your mangled one hold on to it as you can easily use it to mirror the wiring to the new plug. Stupidly, I threw out the broken plug shortly after I broke it. Once I received the new plug from Amazon I needed to figure out the color coding of the factory Y harness. I thought this was cool as you don't have to carry around a 7-4 pin adapter. Third, I found a nice aftermarket plug that had both the 7 pin connection and the 4 pin in one unit. ![]() Second, the harness was still good, only the plug got munched. I had 3 reasons why I did this, first off I don't like to spend more than necessary and this was only $20. Rather than spending the $70 at the dealer for a new Y harness and plug, I decided to just use an aftermarket plug. The combination of location and poor construction means it does not live a long and prosperous life. Like many of you out there, shortly after I got my truck I broke the factory 7 pin trailer plug while off roading. This thread details how to splice in a new aftermarket trailer plug using the factory Y harness. ![]()
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