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Hayes Syncronizer Trailer Brake Controller Installation - 2016 Nissan NV 3500

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How to Install the Hayes Syncronizer Trailer Brake Controller on a 2016 Nissan NV 3500

Hey everybody, Ryan here at etrailer. Today on our 2016 Nissan NV 3500, we're going to be taking a look at and showing you how to install the Hayes Synchronizer Trailer Brake Controller, and we're going to be installing this in conjunction with the upright controller adaptor plug. So when it comes to these NV3500s you know, these are really capable vehicles. A lot of people, you know, use it for work and to carry around a lot of things. And so chances are pretty good that's going to include, you know, pulling a pretty large trailer with brakes on it. And if that's the case, you're going to need a way to apply those trailer brakes and help slow it down.

And that's exactly where a trailer brake controller like this one here is going to come into play. Now real tried and true way to make sure your trailer brakes are functioning properly. However, compared to some others, you know, this is kind of some, a little bit older technology, but nothing wrong with that at all. You know, it's still going to get the job done. And I say that because this is actually a time delayed brake controller.

And so what that means is the amount of power that you want to send back to your trailer brakes is preset. So let's say regardless if you tap your brake or slam your brake, trailer brakes are going to receive that preset power. As opposed to some of the newer style ones, which are proportional. And those are just going to be a little more advanced, you know, provide you with a little more of a smooth braking experience. All the proportional ones are going to match the pressure of the braking pressure that you've applied here inside the van.

So let's say if you barely hit the brakes, trailer will do the same thing. On the other hand, let's say, if you slammed the brakes and really matted them, the trailer would do the same thing. So, you know, the proportional ones are a little more of a smoother experience, but honestly, with a time delayed set up like this, I mean, unless you have the setting way off, honestly, you're probably not going to notice a difference. And that is one of the things you can make an adjustment of how much power you actually want to send back there. I can do it once.

You know, you kind of make that adjustment and that's what you get. So it doesn't just happen on the fly. So once you find that sweet spot, you can definitely live with it and definitely make it work. So enough of the jibber-jabber, let's actually take a closer look at the brake controller itself. About as straight forward as it gets. You know, one of the cool things with the time delay brake controller like this one, is you can mount this thing any which way you want. You know, you can mount it upside down if you wanted to, sideways, any which way. And that's an advantage over some of the proportional type ones. Those have to be mounted in particular fashion. So it gives you some mounting options. I like how you have it set up here, you know, out of the way, but easy to use still. So here's the adjustment that I mentioned. So this is your gain, so more or less, what that means is the power output. So the higher you turn this up, the more power it's going to get sent back to the brakes, the lower, you know, less power. So for example, say maybe you're bringing in an empty trailer to get loaded up on moving day or something. You know, if it's empty, clearly you don't need a ton of power. And when you have it loaded down, that's when you can turn it up and give you so much braking power. There's going to be a manual override lever here. And when you apply that, that's going to apply just the trailer brakes. So let's say if, you know, maybe the trailer's starting get away from you a little bit. You could just hit that and that would help get that trailer back under control and straightened out. So chance's good Probably never need to use it, but it's there if it is. And you can see whenever I'm hitting that, or even just applying our brake pedal, whenever you're plugged into a trailer, you can see it light, illuminating. And so what that means you can see it kind of goes dim to really bright. And that's just an indicator to us letting us know that a power is indeed getting sent back to our trailer and everything should be working at least on this end. So the first step of our installation is to first find a spot to mount this up. We chose just to mount ours right here. It's out of the way, but still easy to see and easy to get to and everything else. And this is really straightforward stuff here. You're just going to have some screws. You mount have to bracket to the dash, and then you mount the brake controller to the bracket. So nothing too wild there. Whenever you do drill into the dash or wherever you're going to mount it, you know, be conscious of what's behind there. So check and make sure you're not going to hit wiring or an airbag, or you know, something like that. In this case we're all clear here. So that's good to go. And from here, we just need to worry about more or less just getting the brake controller plugged in. So we're using the adapter plug here to hook up to the brake controller wires and be able to plug into the factory outlet there under our dash. Our customer, kind of pre-did this for us. He brought this in and he hardwired the brake controller wires to the adapter plug wires. Nothing wrong with that at all, you can do it that way. With the adapter plug, you know, as long as you have the appropriate one, we'll a connector in on your brake controller and a connector in here, and those simply just plug right together. So you don't have to do it this way. Like you can, if you want. You know, I mean, if it we're me, I'd probably just personally plug them right in, but you know, to each their own. That's how it turned out though. And from there, all we're gonna have to do, get these wires tucked back in. All we're going to have to do. The safety portion here that actually plugs into our factory connector and get that plugged in. That connector is going to be located underneath the driver's side dashboard, kind of on the left side, up along the firewall in this area. So here's a better look underneath the dash. This is what that connector plug is going to look like. That we're going to use to plug our brake controller into. So we'll grab our two connector ends. Plug them in together, and then you can route your wiring. I just simply routed mine up kind of along the bottom of our dash here, and up to the brake controller. Now, when you're routing this, just do your best to avoid any hotter moving parts. So like your steering column and your brake pedal and things like that. So with that done, what I simply done is plugged our test box in the back of our vehicle. You can use your trailer to, and we can test it. So, I'll go ahead and just for good measure, turn the gain all the way up. We'll hit the brakes. You can see that the light goes from dim to bright. So we know we're getting power back there. And why not, we'll hit the manual override as well. So you can see a brake controller, is indeed functioning and sending power to our trailer. And that'll finish up our look at and our installation of the Hayes Synchronizer Trailer Brake Controller on our 2016 Nissan NV 3500..

Info for this part was:

Employee Joshua S
Video by:
Joshua S
Employee Jacob T
Video Edited:
Jacob T
Employee Dustin K
Video Edited:
Dustin K
Employee Chris R
Video Edited:
Chris R
Employee Cole B
Installed by:
Cole B
Employee Ryan G
Test Fit:
Ryan G

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