What is Required to Use Curt Echo Trailer Brake Controller

Question:

Does this wireless brake controller need a brake signal other than what would come from a 4 way line that is part of my factory wiring on my 2012 Mazda CX-9? I have converted the factory 4 to a 7 way connector but wanted to see if that wiring is sufficient to operate this brake controller. Thanks!

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Expert Reply:

To use the Curt Echo Wireless Trailer Brake Controller # C51180 your vehicle only needs 12 volt, ground, and turn signals connected to its 7-way socket. What this means is you do not need the brake signal from the 7-way.

For example, if you used a 4-to-7 way adapter such as # 30717, there will not be an output wire from the Echo to connect to, so you could simply tie that wire off, as you can see by the accompanying diagram.

Apart from that the only other thing required is that your smartphone have the following operating systems (OS):

- Apple: 8.0 or newer
- Android: 4.4 or newer

I have added links to a couple video reviews of this brake controller for you to take a look at as well which I recommend checking out.

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expert reply by:
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Kyle S

Question:

Hello, One follow up question on the curt echo wireless wiring. Where does the blue lead hook to in the vehicle when I do my wiring? I think the idea of this echo device was to not have a brake controller inside the vehicle? Thanks

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Expert Reply:

You're right, the idea of the Curt Echo # C51180 brake controller is that you do not have to have anything inside your vehicle; you will simply use your smartphone to control the device via an app, meaning there will not be a blue lead (brake wire) to hook into your Mazda.

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expert reply by:
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Kyle S

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Follow up Questions

Brian C.

I am about to install the factory towbar with foldable hitch on my 2017 Volvo XC90, which includes the factory wiring and a 7 pin connector. Will this work with that setup? If not, can I add something to the setup that would enable this controller (or any other wireless brake controller for that matter) to work? 95324

Reply from Chris R.

As long as the 12V circuit on your Volvo's factory 7-Way is active, the Curt Echo # C51180 will work perfectly. 70151

Jeff

can i draw power from the cigarette adapter plug or it has to be from the battery? thx 82191

Reply from Chris R.

You'll definitely want to make a direct connection to the battery to ensure a constant, stable power source for the Echo. 67494

Allen L.

Excellent info around this need, If we have 4 way and the new wiring kit,does the Curt Wireless require the aux for the 7 way to be wired or can it be tied off and not used? If it needs this ,where does the aux get wired? 80995

Reply from Chris R.

If using the Adapter # 30717 or the Wiring Kit # ETBC7L (which is what I recommend because it includes everything you need) the ONLY additional wires that need to be attached somewhere are the black/12V wire - which gets run up to the positive post of the vehicle's battery, and the white wire - which just needs to be grounded to a clean, bare metal surface. 66677

Reply from Halden R.

@ChrisR will this adapter work even if all the typical wires on the 7pin are connected anyway as if there was a wired brake controller installed? Or should the brake wire be disconnected if it is already installed at the 7pin? 69846

Reply from Chris R.

@HaldenR The Echo won't use that brake output circuit, but there's no reason to disconnect it if it's already attached to the 7-Way. If all the circuits are already ran on your 7-Way you can just leave everything as-is! 70150

Pksss

Does this information about the wire to the battery also apply to a Kia Telluride 2020 with tow package? I have to change the 4 pin to a 7 pin for sure, but is there always the extra wiring to the battery for power and a ground. Will be towing an airstream Bambi 16 rb. 80460

Reply from Chris R.

Yes, on your Kia Telluride you'll need to manually run that black power wire from the Adapter # 30717 up to the battery. Instead of the adapter I recommend using the Wiring Kit # ETBC7L , which includes both the adapter and extra components (wiring and circuit breaker) needed to accomplish this. 66310

Blake A.

Hi, I understand that this info is likely already here. But to confirm, I do the following to install this on my 2012 Ford Escape to use the 7 pin plug and brakes on our tent trailer: - buy and plug in Curt 4 pin to 7 pin adaptor - run black wire with fuse/breaker to car battery - connect ground wire to frame -tie off other wires - buy Curt Echo and plug in to adaptor -done? 77565

Reply from Chris R.

I couldn't have said it better myself. The adapter works - but we do have a wiring kit available with part # ETBC7L that includes both the adapter and wiring needed to activate that 12V circuit. It's kind of an all-in-one install kit for the Echo. 63150

Reply from Blake A.

@ChrisR Great, thanks for confirming. I have ordered the Echo and Curt adapter already. I will grab the wire and breaker. Excited to try it out. 63181

Reply from Chris R.

@BlakeA Awesome! Just let us know if any other questions come up. 63376

Jeff N.

I just purchased a 2017 Palomino T12 STS popup camper, and the dealer convinced me to purchase the Curt Echo bluetooth unit for my brake controller. I initially installed a flat 4 connector to my tow vehicle (2015 Toyota Sienna XLE), linking it through the taillight assembly. I later purchased a Hopkins "flat 4 to 7 pin" adapter that has a flat 4 connector as well as 4 additional wires (black, white, blue, purple). I know I need to run a wire from the positive battery terminal to connect to the black wire (including an inline fuse or circuit breaker), and also a wire from the negative terminal to connect to the white (ground) wire. I just read in this post that I do NOT need to connect the blue wire to the tow vehicle brake switch wiring because the Echo will initiate the trailer brakes based on the brake light signal being sent to the taillight assembly. Is that correct? Please confirm. Also, is there anything I should plan to connect to the remaining "auxiliary" 12V power wire (shown as the yellow wire in the image above, but purple on my Hopkins adapter)? Thx much for your assistance!!! 76423

Reply from Chris R.

You're exactly right. The blue (brake output) wire on the 4 to 7-Way adapter can just be capped off because it's not needed for the Echo. This circuit is needed for most other traditional controllers but not for the Echo (which is one of the reasons I like it a lot - easier install!). No other connections are needed beyond the power and ground circuits you mentioned - all the other wires, including the aux wire you referenced, can be capped off. 62303

Reply from Jeff N.

@ChrisR -Awesome reply. Thx much. One add'l question, if I may. I see wiring kits that include 20A, 30A, and 40A circuit breakers. I read somewhere that a single-axle vehicle (like my popup) requires only a 20A breaker. Do you concur? Again, many thx. 62325

Reply from Chris R.

@JeffN Even for a single axle trailer I would go with a 30 amp breaker like # PK54530 when connecting the 12V circuit to the battery. 62447

Reply from John C.

@ChrisR HELLO CHRIS, I want to install the Curt Echo bluetooth to my Subaru Forester 4 pin flat. I have read the previous posts but I'm still confused about the Power wire. Do I need to run a cable from my battery to the power wire? I currently tow a teardrop using my 4 pin flat for BRAKE, TURN, and FLASHERS and all work fine. I want to upgrade to a slightly larger trailer with electric brakes. Do I have to connect the 12V power source from my car battery? I was hoping I only had to connect the ground. Don't I have power from the 4 pin flat that is already there? Thanks 63430

Reply from Chris R.

@JohnC The Echo needs a constant 12V power input for operation - so the existing signal light feeds on your 4-Way aren't sufficient. You'll need to upgrade the 4-Way to a 7-Way using the Wiring Kit # ETBC7L . This has everything needed to make this conversion including the extra wiring you'll need to run from the battery to the 7-Way to activate that circuit. 63646

Ricky W.

I plug the trailer into the Curt Bluetooth controller all the trailer lights work but the light stays blue on the Curt Bluetooth controller like the trailer hasn't been plugged in 76062

Reply from Chris R.

If the Echo is flashing blue then it just hasn't been synced up with your smart phone yet. Open up the app and pair it to the Echo using the included manual/instructions (be sure to actually pair through the app and not through your phone's Bluetooth). Once synced the light will turn green. Let me know if you have any other issues! 62147

Reply from Ricky W.

@ChrisR It's not flashing it is solid and paired nothing changes when camper plugs in. All lights work on camper but the Bluetooth is not controlling brakeds 62148

Reply from Chris R.

@RickyW Thanks for the info. The solid blue light does indicate a good pair but for some reason it's not detecting your trailer. This might be because the 12V circuit isn't active on the vehicle's 7-Way. Try starting the ignition (if you haven't already) to see if anything changes - some 12V circuits aren't active until the ignition is on. If there's no change then there might be a blown or missing fuse for this circuit under the hood. Check your owner's manual for the 12V/trailer charge fuse location and replace as needed. Let me know what you find. 62302

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