Will 7-Way Need to Run Power Wire to Battery to Use Curt Echo Brake Controller on 2011 Jeep Liberty

Updated 02/28/2022 | Published 02/25/2022

Products Featured in This Question

Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector

(186)

$72.35

Curt Echo Wireless Brake Controller - 7-Way Plug-in w/ Bluetooth App - Up to 2 Axles - Proportional

(1771)

$279.95

7-Way RV Upgrade Kit for Trailer Brake Controller Installation - 12 Gauge Wires

(337)

$96.74

Question:

Hello, I have installed in my 11 Jeep Liberty a 4 way flat wiring and connector Curt 56334, and I would like to install a 7 way connector because I’ll be towing an RV trailer, and I would like to use the bluetooth brake controller C51180 I have researched a few connectors but I have the following question: I know I have to run the black wire to the positive terminal of the battery in order for the Echo Brake Controller to work but if I want 12v aux wire connected for charging the trailer battery and the jack do I need to run also this yellow wire all the way to the battery? Even though I already have a black wire from the 4 way wiring already connected to the battery. Do I have to remove this black wire that is already connected and connect the black and yellow from the 7 pin? Or those 3 wires should be connected to the battery? Thanks

asked by: Renato B

Helpful Expert Reply:

We can get you squared away, and in regards to the power wire, even though your 2011 Jeep Liberty has the power wire of the Curt T-Connector Vehicle Wiring Harness # C56334 run to the battery, you do indeed need to run the 12 volt power wire to the battery to connect the 7-way of the upgrade kit that is used for the Curt Echo Wireless Trailer Brake Controller # C51180:

- 7-Way RV Upgrade Kit for Trailer Brake Controller Installation # ETBC7L

Now, as for the charge, a 7-way will only provide a maintenance charge (instead of a full battery charge), and the current will still run through the Echo # C51180 to your trailer 7-way from the battery. You can use the yellow auxiliary wire, which would also need to be connected to your Jeep's battery separately for the 12 volt.

expert reply by: Kyle S