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
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.
Product Page this Question was Asked From
Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Custom Fit Vehicle Wiring
- Trailer Hitch Wiring
- Vehicle End Connector
- Powered Converter
- No Tow Package
- 4 Flat
- Plug and Lead
- Plug-In
- Hidden
- CURT
more information >
Featured Help Information
Instructions
Miscellaneous Media
Continue Researching
- Q&A: Trailer Hitch and Wiring for 2026 Hyundai Santa Cruz
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Q&A: What is the Difference Between a Class II and a Class III Hitch?
- Q&A: Correct Trailer Wiring Harness for 2012 Jeep Liberty
- Q&A: What is the Difference Between a 4-Way and 7-Way Trailer Connector
- Q&A: Is The Curt 55027 Still Available And Is There An Alternate Wiring Harness That Will Work?
- Q&A: Location of Factory Trailer Brake Controller Harness on a 2007 Toyota Tacoma with Tow Package
- Q&A: What Brake Controller For 2020 Chevy Colorado & Is There Plug-In Harness
- Article: Installing an Electric Brake Controller on 2007-2013 GM Full-Size Truck or 2007-Present GM SUV
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Article: Steel vs. Aluminum Ball Mounts
- Article: How to Measure for Trailer Hitch Drop
- Article: Is It Illegal to Leave My Hitch on My Truck?
- Article: How to Install a Brake Controller on Chevrolet / GMC 1999-2006 Pickups



