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Curt Echo Under-Dash Trailer Brake Controller Installation - 2015 Toyota 4Runner

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How to Install the Curt Echo Under-Dash Trailer Brake Controller on a 2015 Toyota 4Runner


Hey everybody, how's it going Today, we're gonna be going over and showing you how to install the Curt Echo Under-Dash Trailer Brake Controller here on our 2015 Toyota 4Runner. So the trailer profile screen, it's a nice way to save the settings for different trailers. So if you only have one trailer, this feature might not be as useful for you as some of the others with multiple trailers. But basically how this works is we're gonna select the profile 1 through 5 and then we're gonna adjust the settings for that particular trailer. So we've got a little travel trailer hooked up now. I'd go ahead and select profile 1, then adjust the settings for this specific trailer.

Let's say I have another cargo trailer I haul as well. Then we're gonna select profile 2 and we're gonna adjust the settings for that particular trailer. And basically in a nutshell, what this does is it allows you to easily switch between trailers without going through the reconfigure stages of adjusting it again for that particular trailer, just makes it quick and easy. We can actually label these as well. So first one, I could put travel trailer, second one, I could put utility trailer.

That way when I get in and I open the app, I can just easily select one of those trailers. But now we're just gonna go ahead and proceed to profile 1 there. And this is gonna bring up our main home screen, where we can adjust all our settings and we have the manual override. So this large orange button in the center of our screen here, as we said, this is the manual override. So this is gonna apply braking force to our trailer, regardless of if we're hitting the brakes in the vehicle.

So if you've ever towed a trailer before, chances are you're familiar with that manual override feature, and this one is very easy to use. You just simply press on that orange button in the middle of the screen there. You can see the blue ring around that will fill up and that's manually applying the brakes on our trailer. And then in the bottom right here, we're gonna have our sensitivity adjustments. And again, the best way to find the correct setting is just to get out on the road there with the trailer you're gonna be towing and play with these.

So you can get the correct feel of your trailer. And sensitivity adjustment, it's just basically how fast those brakes get on or how soon they rather will. So you can easily just adjust that with the plus or minus arrows. Those are increments of one, the max setting I believe is nine and we can go all the way down to one as well. So that's pretty much it for the basic controls, the one you're gonna be using the most. Now I will say that you actually don't have to have the app open in order for all those controls to work. If you close the app, everything's gonna work with your last saved setting here. So you don't necessarily need to be constantly staring at this screen here. But if you wanna be able to make adjustments on the fly and always have that manual override, you can actually get a little dash mount, a phone holder that you can just easily mount. I know a lot of them actually clip into the vents here. We carry a couple of them, that way you can just have it up in your field of view when you're driving and you can easily make those adjustments, or if you don't want to have your phone out in the open altogether, Curt actually makes it a little dash mounted button that you can press on the dash here. That'll engage the manual override. And as we said, we're gonna use our last saved settings here, if we don't have the app open. If you'd like to fine tune things further, you can hit those three lines in the top left corner here. And this is gonna bring up, sort of like a main menu. We can sync different devices. We talked about the profile list earlier. If we wanted to switch trailers, that's very easy to use. Give it a second to load here. And you could see, we could just switch between one of those trailers, if we had to switch. And then we have our controller settings here. So the controller settings is just basically the backlight feature. So right now we have the backlight illuminated where it's rather bright. Probably gonna be using this when we're driving in the daytime. But if we do any towing at night, just go ahead and hit that button there. And this has a little bit of a darker background. If we have this mounted on our dash and we're driving at night, chances are we don't want that bright backlight shining us in the eyes. So you just switch to dark mode, pretty easy to do. And then finally we have some other settings. Here are the instructions, if you don't have the instructions with you or the owners manual, you can access it from within the app. So there's actually two different kinds of the Curt Echo. If you're familiar with towing and trailer brake controllers, you're probably familiar with their mobile brake controller, which simply plugs into the seven-way. Now I really liked that option, it's one of my favorites actually. It works pretty much the same as the under-dash. Really the main difference is gonna be that the Curt Echo Mobile simply plugs into the seven-way. There's no wiring under the dash there. Whereas the Under-Dash Bake Controller is gonna plug into a factory port and get installed inside the vehicle. Now, I really like both of these options. The mobile brake controller is probably going to be best if you have a vehicle without the factory tow package port. Whereas if you do have a vehicle with the factory tow package port, then you're gonna want to utilize that under-dash brake controller. The Curt Mobile Echo Brake Controller, not everybody likes that due to how it kind of, installs outside the vehicle. There's really nothing you can do about someone coming up and stealing that off the vehicle. So if you're one of those people that's super worried about that, you could still go with the under-dash brake controller as well. Even if you don't have a factory brake controller port, you would just need the hardwire. So in summary, they're both great options. I liked them both, the under-dash is gonna be more geared towards those vehicles that have the factory brake controller port, or for those of you who are concerned with the security of the mobile brake controller. So the Curt Echo is actually a proportional brake controller. Now what a proportional brake controller does is it's basically gonna be applying the brakes in the trailer in a force that sort of mirrors that of our vehicle. Now, what I mean by this is let's say we're driving out on the highway, driving down the highway and somebody cuts out in front of us and we really need to slam on the brakes. We really need to get both our vehicle and our trailer slowed down in a hurry. Now the proportional design of this controller is gonna ensure that we get maximum braking force sent to our trailer there, if we slam on the brakes on our vehicle. Now as opposed to when we're just driving around in town coming to a slow stop at a stoplight, we obviously wouldn't want maximum force being sent to the trailer. We just want to come to a nice and slow stop. And the proportional design is gonna sense that and just apply a little bit of brakes on the trailer, so we're not locking them up. The Curt Echo is a bluetooth brake controller, meaning there isn't anything mounted on the dash, which was one of the reasons I really like it. We don't have to drill into our dash at all or take up space. A lot of the traditional brake controllers, one of the huge design flaws is they're really bulky and they're gonna be banging your knees. 'Cause most of our vehicles just simply don't have a lot of space. But with the Echo and the bluetooth design, everything is gonna be controlled on your phone. Now, if we don't have a phone we want to use, we can also use a tablet as well. Really any mobile device that uses either the Apple Play Store or the Apple Market or the Google Play Store. Either of those are gonna work fine. It's gonna allow us to download this app and use our brake controller. I'd also like to point out that another concern people has is you don't actually have to have an active data connection in order to use the app on your mobile device. You do have to have one to download it, but once you get it downloaded, you don't have to worry about having an active internet connection. Because of this bluetooth design, we don't have to worry about mounting anything physically to the dash. Therefore there's no drilling whatsoever. And we don't have to worry about taking up that valuable space, possibly banging our knees on the controller. Everything is gonna be installed under the dash out of sight and out of mind. And then as with most newer brake controllers on the market, there are integrated safeguards built into the brake controller. Therefore you don't have to worry about any shorts within the controller affecting the vehicle and vice versa. Everything is gonna be isolated so you don't have any problems there. So in regards to trailer compatibility, there's really nothing you guys need to worry about. The Echo Under-Dash is rated for trailers up to four axles and it's gonna be compatible with electric over hydraulic actuator. So really no worries there, no matter what trailer you have, this brake controller is gonna do a great job for you. In regards to installation, this one is very, very simple, possibly one of the easiest brake controllers on the market to install. There's gonna be four wires coming from the back of the controller and a plug. And on most vehicles with a factory brake controller port, we're simply gonna need an adaptor harness that's specific to that vehicle. So make sure you check out our fit guide so you can get the correct one. But if you don't have a factory brake controller for under the dash, that's totally fine. You can completely hardwire this controller just as you would with any other one. So the first step of our installation, we need to find the factory brake controller port on our vehicle. Now this is gonna be located underneath the dash here and sort of to the left of the emergency brake pedal. So let's go ahead and give you a closer view of that now. So we're underneath the dash here, here is the arm for our emergency brake pedal and directly to the left of that you should see a large wiring harness here. So attached to this wiring harness, we should have our brake controller port, which is gonna be this rectangular white connector that we can see here. So if yours isn't quite visible, it may be taped up within the harness here. There is a separate lead that comes off this, but it is again tapes to the main harness here. So once we find that connector, we can still use it, how it is now. I wanna give you guys a little bit more room to work so we can actually see what's going on. Therefore, I'm gonna take a razor knife here and I'm gonna cut the electrical tape that's holding the brake controller harness to the main harness here. Now you're gonna be careful while you're doing this because you wanna make sure you don't pierce any of the wires. So I've got most of the tape cut there. So I'm gonna go ahead and just pull the harness down so you can see here we have a much clearer view. There is that white rectangular connector for the brake controller. And then we have about six inches of wire lead going into that main harness there. So once we found the factory brake controller port, we need to take vehicle specific Curt adapter harness here. So this end here, this is this white rectangular connector that matches the one we just found. This is gonna plug into the port on the vehicle and this plug over here, this black rectangular connector, this is gonna plug into any Curt brake controller. So what we're gonna do is we're gonna take this white connector here, we gonna go ahead and reach back under the dash and plug it into the factory brake controller port. So here we go, it should really only go in one way and we should hear it click into place when it's locked. So now that we have the brake controller adapter harness squared away, we're ready to plug in our brake controller. Before we do that though, I would like to point out a couple of settings we can make on the controller. So if we look at the end opposite of the wiring, you should see a cut-out with a couple of dips switches in there, those tiny little white switches. So you can read about this more in your manual if you'd like, but the first switch is gonna control our brake light activation. This means it's gonna turn the brake lights on in the vehicle and trailer, when we hit the manual override. That's a legal requirement in most states, when the factory preset is on, so those lights will appear when you hit the manual override. If you turn the switch off, then we wouldn't have any brake lights on the vehicle or the trailer while we hit the manual override. And then the second switch is in regards to sort of the output of the manual override feature. The factory preset is on. Therefore we're gonna get a relative breaking force with the manual override to the setting we have in the controller. If you turn that off, that's gonna send 100% of the braking force to the trailer when we hit the manual override, regardless of that setting. So once we've adjusted the switches to our liking, we're ready to actually mount the physical unit and plug in our two connectors. So in regards to mounting in your kit, you're gonna get a double sided adhesive pad here that is simply sticks to the back of that, and then sticks to the surface. We're also gonna get some zip ties to secure it. Now in the instructions they recommend using both, but it's really gonna come down to your particular application and what you have available to you. I've already sort of looked under the dash there to see about where I'm going to mount it. And I think I found a good place. I'm actually gonna zip tie it to the main harness that we showed you earlier, that our factory brake controller port was kind of intertwined with. So I'm actually just gonna mount it to there using the zip ties provided in your kit. I don't think I'm gonna use the adhesive, but it certainly wouldn't hurt if you wanted to use that as well. Again it really just comes down to our particular application in the space we have available. So with that being said, I'm gonna go ahead, plug in our two ends here. Your break controller adapter port to the brake controller plug. Again we'll hear a lock into place. Now we'll get up under the dash there. I'll kind of show you a little bit better view of what I was talking about mounting this. So we're under the dash here, you can see our controller and here's our factory brake controller port that we we're messing with a little bit earlier. So we just follow that wire lead to the main harness there. That was where I was talking about. I thought it was gonna be a good place to mount this. So I'll just go ahead and stick it up there now. You can kind of see, that's kind of where it's gonna sit. I'm just gonna take the included zip ties there. I'm gonna secure it with the tabs on the side to the main harness. Now I will say it's gonna be kind of hard to reach up in there. You're gonna be securing zip ties one handed. So it's gonna be a little bit of a struggle, but should still be manageable. So as you can see now, we have our controller mounted, zip tied to that location that we just talked about. And really what we're looking for is just, we just want the controller to be secure. We don't want a ton of movement within this and that harness is pretty stout. There's really no movement whatsoever. So it's really the ideal location. As you can see here, as we said, we just have two zip ties wrapping it around the controller and the harness there. It's pretty much no movement in the controller whatsoever. Now I'm just gonna go ahead and cut the extra slack on our zip ties there. So it's a little bit cleaner and they don't get tangled up in anything. So now that we have our controllers securely mounted, the only thing left to do here is to secure our extra wiring. We can take some of the extra zip ties that come in your kit here and secure it to some brackets or some wires under the dash or we could actually just tuck it behind this panel here. So now that we have the brake controller hooked up, we need to go ahead and download the app. We're gonna go to the Apple App Store or the Google Play Store. Doesn't matter which operating system we're using, it is compatible with both. We're gonna search for the Curt Echo and that's actually gonna be the app we need right there. So we're just gonna go ahead and download it. Once it's downloaded, we'll go ahead and open up the app. So here we go, the first thing it's go do, it's gonna prompt us to allow bluetooth connection. Go ahead and hit OK. All right, now it's prompting us to plug in our trailer. So we're gonna head outside, hook up to our trailer as we would to be headed down the road and continue the pairing process. So we're outside and hooked up to our trailer now. We can continue with our syncing process. Go ahead and scan for devices. Now, there should only be one device that pops up, the under-dash brake controller, that's the one we want. Go ahead and connect. Now it's gonna ask us for a pin. So the pin is actually gonna be located on this little quick reference guide that comes in your kit here. So a card you're gonna keep in the vehicle with you, on the back, there's a sticker with the pin number. Just go ahead and enter that, pairing successful. So there we go. Now this is gonna bring us to our first screen, which is the trailer profile. And that's gonna do it today for our look and installation of the Curt Echo Under-Dash Trailer Brake Controller here on our 2015 Toyota 4Runner..


Info for this part was:

Employee Chris R
Video Edited:
Chris R
Employee Jonathan Y
Video by:
Jonathan Y
Employee Conner L
Test Fit:
Conner L
Employee Adam E
Test Fit:
Adam E
Employee Andy C
Installed by:
Andy C

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