Wiring Diagram for the Curt Universal Brake Controller Harness

Updated 05/30/2023 | Published 05/26/2023

Question:

Do you have any advice on 2023 Jeep Grand Cherokee wiring diagram for installing C51515 adaptor for a C51110 brake controller. I will need to direct wire, as there is no brake controller connector.

asked by: Jeffery C

Expert Reply:

In order to install the Universal Wiring Adapter for Curt Trailer Brake Controllers # C51515 for the Curt Venturer Trailer Brake Controller on your 2023 Jeep Grand Cherokee you're going to need to first locate a bundle of 4-5 wires that should be taped up underneath your dash to the left of your steering column held together with a tag.

Once located, you'll just need to connect the wires from the brake controller adapter to your factory wiring. Those connections are brake blue wire to your trailer connector, black wire to your positive battery post, red wire to your stoplight switch, and the white wire to your ground.

I have attached a wiring diagram showing these connections for you to check out as well.

expert reply by: Bryce D