![]() The trailer connector noted as number 3 white is your ground location, and the pin noted as 6 red is your charge wire location. Look at the photo below to get a sense of where exactly the charge and ground wire are on your connect. And the black wire is for your backup lights on a wiring harness. Just remember that it is different for trailer wiring and the white wire is the ground. This can be confusing as most truck batteries have the black color as negative or ground. The ground is a white wire on your wiring and trailer plug. Since the charge wire is positive, the ground is the next wire we need to find. You will need a positive (charge) and a negative (ground). To get power, the basic rules of battery power still apply. As you need 12V power direct from your truck, this charge wire will be the main focus. You don’t need to turn on your truck to get power at this wire. This wire provides constant 12V power to your connector from your truck battery. If you look deeper into the diagram, you will see a red wire, also called a charge wire. But what if you want 12V power you can tap into to do the things needed while working with a tow vehicle? All these wires are great for functioning the necessary power to each light or brake controller. When you look at a wiring diagram for your 7 pin plug, you will see trailer wire for things such as your trailer lights, your trailer brake, and back up lights. How to manage your fuse and the safety of an electrical component Table of Contents.How to get the connector to work for 12V power.Where is 12V power on your trailer plug.It will go over, step by step, how to get power, including: This post goes over how you can tap into that power easily. You just need to know how to tap into that power. Luckily, with a 7 pin connector, your truck is ready to provide constant 12V power. Getting 12V power from your trailer plug is an easy way to power up your electrical devices on the road.
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