Where Does Blue Wire Go on 4 to 7-Way Adapter With Curt Echo Wireless Trailer Brake Controller

Question

Question:

I have a 2020 Sienna LE and have a 7way 4 way combo plug and 4 way wiring installed. All wires are connected incl. auxiliary power except the blue one for EB. I want to use the Curt Echo wireless controller. Where do I connect the blue wire to?

asked by: Bert S

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Expert Reply:

The trailer brake output or blue wire is not connected on a 4 to 7-way adapter like the 4 to 7-Way with 4-Way Adapter part # ETBC7L when using a wireless trailer brake controller like the Curt Echo Wireless Brake Controller part # C51180. The two four way plugs connect to each other, the white wire goes to ground, the black wire goes to the vehicle battery, and the yellow and blue wires get tied up. The blue wire is not used like it would be for a traditional trailer brake controllers as there is nothing in the cab to connect it to since the controller is now plugged into the trailer connector. The brake controller uses the black wire for power and it then sends this power through the blue wire on the trailer to the magnets.

expert reply by: Conner L

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Answer 1

In regards to the wiring for your 2023 Hyundai Palisade, you'll need to go with a hardwire harness like the Curt Powered Tail Light Converter with 4-Pole Flat Trailer Connector part #C59236. Then, you'll need an adapter, the 4 to 7-Way with…

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Answer 2

When it comes to plugging into the Tekonsha Prodigy RF Wireless brake controller there is a couple different wires you will need. First you will need to install The T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector #TK99FR this will…

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Answer 3

We do have a 7-way blade wiring harness available for your 2023 Toyota Highlander. What you need is the Tekonsha OEM Replacement Vehicle Wiring Harness #TK57VR. This plugs into the connection in your rear cargo area for installation. You can use the…

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Answer 4

If you have a vehicle specific wiring harness for a brake controller then that would indicate that you have a factory tow package and subsequently would already have a 7-way at the back of your vehicle. The universal 7-way connector #ETBC7 is meant…

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Answer 5

The orientation/angle of the Curt Echo Mobile Trailer Brake Controller part #C51180 does not matter. I have confirmed this with Curt many times and they say it does not matter what angle the Echo is mounted at, you will still have the same braking…

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Answer 6

I am happy to explain why the yellow wire and blue wire are tucked away in the installation video of 7-Way RV Upgrade Kit for Trailer Brake Controller Installation part #ETBC7L. The ETBC7L is a kit used to install the Curt Echo Wireless controller…

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Answer 7

In US left hand drive models, the connector for the brake controller is located behind the glove box, as you can see in the install video I've linked for you. We've had no experience with Australian market Explorers, but if the plug is not…

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Answer 8

You can use the Trailer Connector Adapter #337TC1474P to replace your connection as we do not have a replacement cover for the 7-Way RV Upgrade Kit #ETBC7L. The new connector will plug in just like your current unit and has the same 4-way and 7-way…

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Answer 9

Since you already have a 4-way connector on your 2018 Toyota Highlander you need to use one of our adapter kits to convert it to a 7-way. If the trailer doesn't have brakes you only need to power its lights and the battery so you can use part…

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Answer 10

As the Manual Override Button for Curt Echo Brake Controller #C83HR is just the manual override, it will engage the brakes fully when pressed. If you have the controller set pretty low, you could use it to feather the brakes a bit, but you will need…

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Answer 11

The blue electric brake wire and black 12 volt power wire mix up is on the vehicle side of your 2011 Nissan Frontier. The factory tow package connector on a few of the Nissan Xterras, Frontiers and Pathfinders from 2005 to 2012 had this issue,…

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Answer 12

The Curt Echo Brake Controller part #C51180 is a great choice because of its convenient and simple installation. The 7-way connector that you mention part # A10-7084VP pugs into the 4-way connector you purchased part #C56217. The white wire from the…

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Where Does Blue Wire Go on 4 to 7-Way Adapter With Curt Echo Wireless Trailer Brake Controller

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