7 way plug wiring diagram standard wiring* post purpose wire color tm park light green (+) battery feed black rt right turn/brake light brown lt left turn/brake light red s trailer electric brakes blue gd ground white a accessory yellow this is the most common (standard) wiring scheme for rv plugs and the one used by major auto manufacturers today. Ford 7 blade trailer wiring on ford images. 20 Simple Automotive Wiring Diagrams References When you employ your finger or perhaps stick to the circuit along with your eyes, it’s easy to mistrace the circuit. 7 blade wiring diagram trailer . It reveals the components of the circuit as simplified forms, as well as the power and also signal links in between the gadgets. By admin | october 21, 2017. We have actually accumulated numerous pictures, hopefully this photo serves for you, as well as assist you in locating the answer you are trying to find. Thank you for visiting our website to locate 7 blade trailer connector wiring diag...