I have Service Manual, And Electrical Diagram manual for this Vehicle, Aftermath of Hurricane Irma, Keeps me from locating each at time. I have a test Probe, and can determine by turning on Park Lights, get up and do left signal, Identify, Back and forth stuff, and understand a second person could make short work of this.

Does anyone know the colors to attach to the Brown, Yellow, and Green of the 4 pin trailer plug, I know White is ground, brown is tail, yellow is left(yellow has an L), and Green is right(Green has a R in it). What are the colors on the Vehicle. Google, and Images have not been helpful. Thanks in advance

Thanks for anyone try to help, Had a Short harness from my other truck, Plugged is, all is good. You probably found googling, Would take you Anywhere but a "2003 Ford E250 trailer Wiring colors"

Could have done easily with a test light, Hurricane Restoration has left me with little excess energy. Slowly getting caught up. Wanted to make it easy? Thanks anyway.