How to repair or replace 4 wire flat trailer wiring connector harness duration. Connect the white wire from the male 4 way trailer plug to the ground terminal of the 7 way receptacle.
7 Pole Round Trailer Connector
Wiring 7 way plug to trailer. If the 7 way tested normal then something is going on with the wiring on the trailer side. Let me know what you find and we can go from there. 7 way plug wiring diagram standard wiring post purpose wire color tm park light green battery feed black rt right turnbrake light brown lt left turnbrake 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. Step 2 connect the brown wire from the 4 way plug to the running lights terminal of the 7 way receptacle. Prepare for vehicle wiring installation if you have a 7 way connector if your vehicle already has a 7 way. How to hook up a trailers 7 way plug duration.
In this video we go over how easy and fast it is to convert a 4 flat harness to a 7 way. Make vehicle connections your wiring harness will either plug into clamp onto or splice into your vehicles. Inspect the trailers 7 way itself for any corrosion that needs to be cleaned out and then inspect the wiring leading back to the brake assemblies. Vehicle side step 1. Does your vehicle have a 4 flat trailer wiring harness but you need to tow a trailer with a 7 way harness.
Gallery of Wiring 7 Way Plug To Trailer
