Testing 7 pin trailer wiring can seem intimidating at first, but it’s actually quite easy. You must have the right tools and know the correct steps to ensure the trailer wiring is functioning properly.
To start, make sure you have the necessary insertions for a 7-pin plug for your trailer. The pins are numbered from left to right, so you’ll need to make sure that each number has a corresponding pin. Next, connect the 7-pin plug to the trailer’s wiring harness, making sure all pins are in the correct spots.
To test if everything is connected properly, hook up the trailer to a car or truck, then check each of the 7 pins with a multimeter. Set the multimeter to its “continuity” setting, then probe each pin at the trailer and at the vehicles’ plug, looking for a closed circuit. If the multimeter reads “open”, there’s a loose connection somewhere. If it reads “closed”, that means that the connection has been made properly.
Not only will you save money on calling for professional help, but you’ll also gain confidence in your own ability to troubleshoot electrical systems. As long as you follow the directions correctly, 7 pin trailer wiring testing doesn’t have to be a daunting task. With the right tools and knowledge, you can do it yourself with ease.
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