tow package -brakes-4 pin electric pin harness

[bdon]

I just purchased a 2021 Telluride EX with the tow package. There is a 4 pin electric pin power harness in the glove compartment. I am planning on getting a trailer that will have a brakes. I am not familiar with trailer brakes and wiring need with the car. My towing previously has been trailers without brakes. There is a 7 pin receptacle on the car, so I had assumed one the pins was wired for the trailer brakes, So not sure what I need to do with this 4 pin electric pin harness and if requires additional wiring to have functioning trailer brakes. Appreciate any help on this issue. thanks, BRD

 

[G-898760]

I just purchased a 2021 Telluride EX with the tow package. There is a 4 pin electric pin power harness in the glove compartment. I am planning on getting a trailer that will have a brakes. I am not familiar with trailer brakes and wiring need with the car. My towing previously has been trailers without brakes. There is a 7 pin receptacle on the car, so I had assumed one the pins was wired for the trailer brakes, So not sure what I need to do with this 4 pin electric pin harness and if requires additional wiring to have functioning trailer brakes. Appreciate any help on this issue. thanks, BRD

In most cases there is a four pin socket up under the dash, and you splice the provided pigtail onto your electric brake controller and plug it in under the dash. That allows the controller to connect to the circuits for the 7 pin plug at the hitch.

The controller only needs four pins because it just needs power, ground, connection to the brake pedal switch, and a signal line to the trailer brakes.