How Do You Wire A Flat 4 Prong Plug To A Towing Vehicle?
Wiring a vehicle for a trailer connector is a project that a handyman with a little understanding of automotive wiring can handle in an hour or less. Flat four-prong connectors provide the power for the running, turn and brake lights, as well as an extra wire to ensure a good ground connection. Trailers with electric brakes require that the tow vehicle be equipped with a five- or six-prong connector. Turn the vehicle running lights on. With the test light, probe the wires going to the left taillight until the test light illuminates. Connect the brown wire from the connector to this wire using a Scotchlok connector. Shut off the running lights and with the ignition key in the “ON” position turn on the left turn signal. Probe the wires to the left taillight until the test light flashes. Connect the yellow wire from the taillight connector to this wire with a Scotchlok connector. Shut off the left turn signal and turn on the right. Probe the wires in the right taillight harness until the
