Troubleshooting Trailer Lights - Grounding Issues - YouTube Click to view on Bing4:54If your trailer lights are not working, Troubleshooting Trailer Lights - Grounding Issues BlazerInternational. Loading Trailer Wiring Problem Solving - Duration: 25:40. Thinking out side box 79,902 views. 25:40. How to Author: BlazerInternationalViews: 106K Trailer Wiring Problems, Running Lights, Brake Lights Click to view on Bing4:40Stuff I have done prior to this post. I have the trailer hooked up through the 4-prong plug, Another set of trailer of trailer lights I've tested as well, checked all fuses in both vehicles. So now heres my problem. Everything Author: B SakViews: 161K Troubleshooting Trailer Brake Lights not Working When No Brake and Turn Signals On Boat Trailer with 5-Way to 7-Way Adapter; Bypassing TIPM for Trailer Wiring Fix on 2004 Dodge Ram 1500; Troubleshooting Trailer Wiring of 2004 Dodge Ram that Stopped Working; Converter to Provide Brake-Only Signal for 3rd Brake Light on Camper Shell; Front Lights on Trailer Work But Rear Lights Dont Work and Get Hot All Trailer Lights Work Fine Except Brake Lights Will Not Uhaul Trailer Wiring Harness Causes Brake Light and Blinker to Not Work on 2009 Chevy Impala; Troubleshooting 4-Way Harness On 2013 Ford F-150 And Trailer Wiring; Brake Light Troubleshooting with Modu-Lite Wiring Harness; Trailer Running Lights Malfunction When Towed with Ford F250; Will a 4-Pole Flat Trailer Connector also Fit this 5-Pole Flat5/5(17)Brand: Draw-Tite Troubleshooting Trailer Lights - A Simple Guide It is possible that one of the bulbs on your trailer burned out. So check the lights. If the bulbs are not the problem, disconnect the trailer's wiring system from the tow vehicle. Test all of the lights, from the backup lights to the turn signals and brake lights to ensure the problem is not the tow vehicle itself. How do I troubleshoot trailer wiring problems? Trailer Wiring The lights on a trailer are just an extension of the tow vehicle lights. The wiring for these lights starts at the tongue of the trailer with an in-line four-pin plug. This plug has three male pins and one female pin. The male pins carry the voltages for the lights, while the female pin provides a ground or return for all circuits.
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