Wiring Diagram to Use When Installing 7-Way # 47549

Question:

My trailer has 6 wires yellow green red brown white black and everything I hv seen has a blue wire so how would I wire this up

asked by: Jeff

Expert Reply:

Sounds like your trailer has the RV standard type of wiring like what you see in the middle of the picture I attached. Since you are missing the blue wire that would indicate you probably don't have trailer brakes. You can verify the functions of your trailer wiring by using a jumper wire from a 12 volt battery to determine what each of the functions is of the wires you have. The white wire might spark as it should be the ground so be careful.

expert reply by: Jameson C