4 Wire Flat Trailer Plug. Integrated continuity LEDs for left, right and tail lights. You can do this with documentation, or by testing with a multimeter.
Test the plug on your truck first, have some one step on the brake and make sure the brake wire on your plug is hot. How To Wire A Trailer Hitch And Electric Brakes Video. Trailer wiring testers can help ensure that towing is done in a safe and legal manner.
The plug is molded around the wires.
How To Wire A Trailer Hitch And Electric Brakes Video.
Connect as follows: Green wire- Connects to the vehicles right turn wire harness & provides brake light and. Learn all about trailer wiring testers at HowStuffWorks. You can do this with documentation, or by testing with a multimeter.