Standard 7 Pin Blade Type Trailer Connector

Pin # Function Min. Wire Size 4 12v auxiliary charging circuit 12 AWG 5 Left hand turn signal, left hand brake light 16 AWG 6 Right hand turn signal, right hand brake light 16 AWG 7 Backup lights 16 AWG
Also, does a 7 pin trailer plug charge battery? You can put a maintenance charge on your trailer battery with the 12 volt accessory circuit of the 7-way. The 1:00 position of your 7-way carries this circuit. You would just need to run a length of 10 gauge wire like part # 10-1-1 (sold by the foot), from this pin to the positive terminal of the battery.

Then, how do you wire a 7 pin trailer connector?

Attach all of the wires to 7-wire plug. Tighten the screw at the left-center terminal. Slide the white wire between the lower-right plate and terminal, then tighten it. Attach the blue wire to the lower-left terminal and the green wire to the left-center terminal. Attach the black wire to the upper-left terminal.

What is the center pin on a trailer plug?

The center pin on the 7 way connector can be used for many different purposes, although it is typically used to carry the signal from the reverse lights on the vehicle to the trailer.