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  1. Trailer Brake Controller
  2. CURT
  3. Electric
  4. Electric over Hydraulic
  5. Proportional Controller
  6. Up to 4 Axles
FITS 2018 Jayco Precept Motorhome
Curt Spectrum Brake Controller w/ Custom Harness - Dash Mounted Knob - Up to 4 Axles - Proportional
CURT

Curt Spectrum Brake Controller w/ Custom Harness - Dash Mounted Knob - Up to 4 Axles - Proportional

Part Number: C72SV
In Stock
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$284.29
Trailer Brake Controller
Confirmed to Fit
2018 Jayco Precept Motorhome

with factory Tow Package

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2018 Jayco Precept Motorhome trailer brake controller from CURT. Product reviews from other Precept Motorhome owners. Expert trailer brake controller advice with thousands of helpful questions and answers. Great prices and fastest shipping.
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CURT Trailer Brake Controller - C72SV

  • Electric
  • Electric over Hydraulic
  • Proportional Controller
  • Up to 4 Axles
  • CURT
  • Behind-Dash
  • Plug-In
  • Dash-Mounted Knob
  • Multiple Trailers
  • Indicator Lights

You can stick the control knob to the dashboard, plug in the module, and your brake controller installation is done with no drilling and no hardwiring. The knob is large and easy to use, while the main unit is out of sight behind the dash.


Features:

  • Proportional braking - Smooth, safe, and good for your brakes long-term
  • Fingertip control
    • Adjust braking output and sensitivity by turning the dial
    • Push the button to activate manual override
    • Troubleshoot with colored LED indicators
  • No-drill installation - Knob adheres to dash, main unit installs behind it
  • Plug-and-play - Custom-fit wiring harness
  • Assembled in the USA


Specs:

  • Application: trailers with 1 to 4 axles (8 brake assemblies)
    • Compatible with electric or electric-over-hydraulic trailer brakes
    • Compatible with ABS brakes, cruise control, low-voltage wiring, multiplex wiring, and PWM systems
  • Main unit dimensions: 3" long x 3-1/2" wide x 7/8" tall
  • Control knob dimensions:
    • Extension: 1-1/2"
    • Diameter: 1-3/4"
  • Cable length: 4'
  • Warranty:
    • Limited lifetime on brake controller
    • Limited 1-year on wiring harness


How Does the Curt Spectrum Work?

The Spectrum puts control of your trailer's brakes at your fingertips and, with bright LED indicators, you know what your brake controller is doing at a glance.


Curt Spectrum Dash-Mounted Knob

You can adjust all of your settings using the control knob. To switch between modes, press the control button in the center of the knob. Each mode has its own distinct LED display with several different colors and patterns to eliminate any guesswork as you cycle through.


Curt Spectrum LED diagnostics

Output: Braking output is the maximum amount of power that will be applied to your trailer's brakes. How much braking output you need is determined by the weight of your trailer; a heavier trailer will need more power to bring it to a stop. You want to go as high as you can without the trailer brakes locking up.


Sensitivity: This controls the aggressiveness of your trailer's braking, meaning how quickly the brakes reach the set output level. This is a great adjustment to make when you're towing a heavy load and the trailer will need more umph to bring it to a stop so it doesn't push your vehicle forward. If your vehicle takes too long to come to a stop, increase the setting. If it stops too abruptly, lower the setting. You may also need to adjust the sensitivity based on your own preferences, or when the trailer load or road conditions change.


Manual Override: The manual override activates just the brakes of your trailer, great for stopping sway or controlling its momentum in an emergency. To engage the manual override, press and hold the button on the control knob.


Curt Spectrum review

No-Drill Installation

The Curt Spectrum comes in 2 pieces: the main unit and the control knob. Because the only part that you need to be able to access is the control knob, the main unit can be mounted out of sight and out of the way. You don't have to worry about banging your knee on a bulky brake controller or interfering with your vehicle's lower airbags.


Curt Spectrum Dash Knob

The dash-mounted control knob can be installed in any convenient spot that's easy for you to see and reach. This can be a blank switch panel, an open spot on your center console, or wherever there's space on your dashboard. The knob sits flush against the dash, so you don't have to worry about finding enough clearance behind the dash. You can use either the included screw to mount the knob, or the adhesive pad for a drill-free installation.


Once you've decided where you want to put the control knob, you'll need to find a good place to install the main unit. Your only restriction is the 4' plug-in cable that has to be able to reach between the main unit and the control knob. Thanks to the 3-axis accelerometer, the main unit can be positioned at any angle or position. No matter how you install it, the unit will sense the direction of travel and its orientation.


The included custom-fit adapter plugs into the port on your vehicle's built-in brake control wiring harness, which you should find beneath your dash, near the center console. Once you're plugged into your factory port, just plug the other end of the adapter into the main unit. No hardwiring needed!


Note: If you don't already have a 7-way plug at the back of your vehicle, take a look at our exclusive 7- and 4-way brake controller installation kit (ETBC7 - sold separately).


What is Proportional Braking?

What is proportional Braking

Proportional braking means that your trailer brakes mimic your tow vehicle's brakes. If you slam on the brakes in your vehicle, your trailer brakes will activate with the same intensity; if you brake lightly, your trailer brakes lightly too. The trailer's braking is in proportion to your vehicle's braking. This saves wear and tear on the tires and the brakes on both your vehicle and trailer.


The Spectrum uses an internal 3-axis accelerometer to sense how your vehicle is braking so it can send the right amount of braking power to your trailer. It measures the inertia of your tow vehicle and activates the trailer's brakes to ensure that your trailer slows at the same rate. The result is uniform braking across your towing setup. No push-pull action - just smooth, proportional braking every time.



51170 Curt Spectrum Trailer Brake Controller - Dash Mounted Knob - Proportional - 1 to 4 Axles

51322 Curt Quick Plug Brake Control Adaptor Harness

Installation Details C72SV Installation instructionsAlternate Instructions C72SV Installation instructions

California residents: click here


Video of Curt Spectrum Brake Controller w/ Custom Harness - Dash Mounted Knob - Up to 4 Axles - Proportional

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Installation: Curt Spectrum Brake Controller w/ Custom Harness on a 2020 Chevrolet Colorado

Ryan: How's it going Ryan here at etrailer.com. Today on our 2020 Chevrolet Colorado, we're going to be taking a look at and showing you how to install the Curt Spectrum Trailer Brake Controller. The main thing that really separates this brake controller from many of the traditional style brake controllers like this is a couple of things. One, it's going to be really small and two, you're going to be able to pretty much mount this anywhere that you want and on a lot of today's newer modern vehicles, that dash space is really limited and can be really challenging to find a good spot to mount a brake controller like this that's out of the way, but yet still easy to use.There are other brake controllers that are similar in the design of this one and most of our customers specifically compare this one to the Redarc. I personally like this one a little bit better than the Redarc and that's because behind our knob here, there's going to be nothing behind it as compared to the Redarc, behind the knob, there's going to be a connector that comes out quite a ways. So, you're still somewhat limited on where you can mount that Redarc because you're going to have to have room behind the panel for that connector to fit.

And if you choose not to, this one doesn't require any drilling or anything like that. In our case, where we mounted it, we did drill one small hole to run our wire through. But if we chose to mount this a little further down or if you want to see a wire coming, all you'd have to do is stick this to the dash.Another thing that makes this really easy to use is the fact that it has automatic leveling, so what that means as soon as you plug into a trailer, this is going to automatically calibrate. You're not going to have to scroll through settings or go through the menu and select which trailer that you want. It's just going to do it for you.

The brake controller is going to work with trailers for up to one to four axles and it's also going to be proportional. What proportional means is the trailer brakes are going to apply at the same rate as how hard you apply the brakes inside the truck. That's just going to provide us with a smooth and predictable stop.The knob is going to have multiple modes as well as indicators that'll let us make some changes and let us know what's going on. For example, whenever you hook up to your trailer, it'll flash green letting us know that the connection has been made. Once it's done flashing green, that also lets us know that it's been calibrated.

Then whenever we disconnect from our trailer, it'll flash blue letting us know that we're unplugged. We're also going to have a few different settings. If we turn our knob, you'll see the LEDs go green to orange to red, and that's going to be the output control. And what that does is determine the maximum amount of power that's going to be available to the trailer brakes whenever we're braking. If you push the button down and hold it, that's going to be the manual override.

So, if you want to apply the trailer brakes manually, say in the event of a sway situation, you'd simply hold that down.That can be adjusted by holding it down and turning the knob and that'll control how hard the brakes will be applied. If you push the button again, we will get some blue lights that turn to purple and then red. That's going to be able to control the sensitivity and that's going to adjust how aggressive the trailer brakes are applied. If you push it again, it'll then be white. What that's going to do is to allow you to adjust the brightness. Here it's on full power, you'd probably use this setting whenever it's sunny outside that way you can see a little bit better, and then at nighttime you could always turn it down if that light's bothering you.So overall, a really simple, easy-to-use brake controller. It allows us just to hook up to our trailer and more or less be ready to hit the road since it automatically adjusts, but it's still going to give you that capability to fine tune it a little bit if you want to. And since it is so compact, it's going to help keep that nice, clean, factory look inside of our truck. We're not going to have to worry about the traditional style one that's big and bulky, taking up space, banging our knee on it. As far as the installation goes, it's just going to be a handful of wires that we have to hook up and it's really straightforward. You should have no problem doing it at home in the driveway or even your garage. Speaking of which, let's go ahead and put this on together now.Let's begin our installation. We're going to need to first locate our factory brake controller wiring. We're over here on the driver's side, in the front seat, and the brake controller wiring should be right here in this location, underneath this little threshold. We'll go ahead and pop that off and to do that what you can do is grab the end of it here and just pull it up. Just work it up and it'll pop off and we can just set it off to the side. If we follow some wiring up right here. With that panel out of the way, now we can see our factory brake controller wires. They're going to be just right here by our emergency brake pedal. There's going to be four of them. They're going to have some heat shrink on the end. They're also going to be taped to this thicker wiring harness. What I'm going to do is just cut that tape off.We're able to pull the wires further out to give us a little more room to work. Something I do just want to point out, if your truck doesn't have these factory brake controller wires, you are going to need to pick up an ETBC7 to get your install completed. However, chances are pretty good yours will have these as most of them on the road, at least in my experience, do. I went ahead and tested our wires here to make sure we know how each one functions. The black wire, that's going to be the ground. The red wire, it's going to have a little green stripe on it, that's actually going to be our 12 volt power. The blue wire, that's going to be the output, the brake controller. And then the white wire that has a thin blue stripe on it, that's going to be our brake signal. Now what we can do is cut this heat shrink off and get these prepared, that way we're able to hook up our adapter. I'm just going to trim off that heat shrink with a pair of snips.Then we can come back with a pair of wire strippers to strip off some of this insulation to expose the wiring underneath. Now what I'm going to do is take some heat shrink butt connectors, which you can find here at etrailer.com, and I'm going to crimp one of these on each end of our wire here. Twist them, slide that butt connector on, and crimp it down. I'm going to repeat that same process for the three remaining wires. Now what we're going to do is take our wiring adapter for Curt brake controllers and get these wires hooked up to the factory ones. You might think, naturally, that you would just hook these up color for color, but that's actually not the case. So, we'll run through which color goes to which wire right now.We will start with the blue one from our Curt adapter. That's going to go to the factory blue one, so those will actually match up. We'll grab the white one from our Curt adapter and that's going to connect to the factory black wire, so those two will go together. Then grab the black wire from our Curt connector and that's going to get connected to the factory red wire. And then we'll grab the red wire from our Curt adapter and that's going to get connected to the factory white and blue wire. These are going to get connected the same way that we put these butt connectors on. We'll just slide the wire in and crimp it down. I'll do that same thing to get our remaining wires all hooked up. Here's what our wiring is going to look like once we have it connected. Since I used heat shrink butt connectors, what I'm going to do is come in with a heat gun and shrink those ends.At this point, we need to figure out where we want to mount our knob. You want this out of the way, yet easy to see and easy to get to. A spot that I think is good is right here to the right of the steering wheel, on this panel. I'm thinking somewhere in this location. We are going to have to drill a small hole, that way we're able to run our wire through the dash and get it all connected. But before I just start drilling, it's a good idea to see what's behind this panel that way we don't accidentally drill into something of importance, so I'm going to lower this panel down to check that and on the bottom edge there's going to be two 7mm screws that's holding it in place. Once you have the screws out, what you can do is grab that panel and work it out.With it pulled back, there's nothing on the backside of the panel and there's really nothing in the way here that we have to worry about. There's also going to be a gap here that I think would work pretty good to run our wires through. I went ahead and marked the spot where we need to drill out a small hole, so I'm using a bit just a little bit bigger than the wire, that way we won't have any problem getting it pushed through. Once our hole is drilled, since we're using the adhesive to connect our knob to the dash, it's a good idea to really make sure this is nice and clean, that way it'll stick really well. I'm just going to use a little bit of rubbing alcohol to get that area really clean and nice and dry. Now we can take the wires here at the end of our control knob, we're going to feed those through the hole that we drilled.What I'm going to do before we actually mount our knob, is run these wires down by our brake controller adapter harness, down along through the dash here, and I'll do that and show you the path that I took to get there. Here's how I ran the wire. It comes out of the back of the knob and through this little opening here behind our panel and if you push it through there, that'll actually allow it to start to drop down here underneath the dashboard. Here's where our wiring comes down underneath the dash and I ran it along, ending right here where it'll be nice and easy to get everything hooked up. For the time being, we're not going to worry about completely securing our knob just yet, what we're going to focus on doing now is hooking up these wire ends to our plug connector. The way you're going to do this is take the wire and simply push them into those corresponding slots to get them all hooked up.The one that we're going to do first is this white wire and that's going to go into slot two, so more or less we're not going to be using the very end slots on each side. We'll take the white wire and push it all the way in and then just lightly pull back on it to make sure it's completely seated. There's going to be a little bit of movement, but that's not really a big deal. The next one after the white wire will be the green wire. Again, these are all going to work the same way. They are a little small, so you have to finesse it a little bit, get that plugged in. Now moving on from the green wire in that same direction that we're going, we're then going to plug in the brown wire. After that, the blue wire. Following that, will be the black wire and after the black one we'll plug in that red wire.This is what the wires are going to look like once they're all plugged into our connector and once we have them all plugged in, we can just flip it over and take this cap and close it down like that. Now we're going to grab our main module here and get this plugged in, that way we can figure out a spot to mount it. One end of it will simply plug into our wiring adapter. The other end we'll plug in our wiring that comes from our knob. At this point, you can look underneath the dash or somewhere out of the way that we're able to secure our module box. Here's where I mounted our module box and I did that using the included two-sided tape as well as a zip tie. From there, I just took all of our extra wiring that we had and tucked it off to the side and secured it to help clean up our install look. At this point, we can go ahead and resecure our dash panel and then we can go ahead and put back in place our threshold here.The weather stripping is supposed to go over the threshold, so you might have to work it up with your fingers. At this point, we can secure our knob to the dashboard, so we'll take the included two-sided sticky tape, pull one side back, put it in the center there, make sure it's pushed down, peel that other side off, and simply we'll just line it up how we want it, nice and straight, then push down to get it stuck to the dashboard.With everything hooked up, it's a good idea to test it to make sure it's working properly. You could either just hook up to your trailer or use a tester box like we have here today. Once you do plug it into your trailer, what you should see is some green lights that ramp up, and that'll indicate to us that the brake controller is calibrating itself to your trailer. Just to verify that this is sending a brake signal back to our trailer, what I'll do is manually override it and apply the brakes. To do that, we'll simply just push down and hold the center button. You can see it lighting up. We now have power to our brakes. That'll finish up our look at and our installation of the Curt Spectrum Trailer Brake Controller on our 2020 Chevrolet Colorado.

Customer Satisfaction Score:

Ratings & Reviews

4.6

409 reviews
You can stick the control knob to the dashboard, plug in the module, and your brake controller installation is done with no drilling and no hardwiring. The knob is large and easy to use, while the main unit is out of sight behind the dash.

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A wonderful customer experience. Worked with professionals who guided me in selecting the correct product. Thank You!


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See what our Experts say about this CURT Trailer Brake Controller

  • Troubleshooting Installation of Curt Spectrum Brake Controller on 2011 Toyota Sienna
    The calibration process of the Curt Spectrum # C51170 should only happen after initial installation and should be run before you plug in the trailer to your tow vehicle. You should have seen the green lights on the knob light up in a clockwise motion 7 times, which indicates the calibration is occurring. If you've gone through this process and the error occurred, then the lights on the knob can tell you a bit about what's potentially going on. If you're seeing all red lights that would...
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  • How Does Brake Controller Unplug from Vehicle to Prevent Battery Draw
    Hey Joe, while I don't know what brake controller you have you should be able to unplug it from the back of the brake controller and that would accomplish what you are wanting. What brake controller do you have?
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  • Troubleshooting Curt Spectrum Brake Controller - No Lights On Control Knob
    The Curt Spectrum Brake Controller # C51170 should illuminate, even if the trailer is not connected. If you are getting no lights at all, this likely means the control unit is mis wired, or there is contamination in the trailer plug socket. We recommend double checking your wiring and making sure everything is done correctly. Also clean and dry your trailer plug. I have included Curts troubleshooting guide below.
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  • What Lights On Curt Spectrum Are Supposed to Activate When Pressing Brake Pedal and No Trailer?
    I have added a link near the bottom of this page with the instructions for the Curt Spectrum Trailer Brake Controller # C51170. When not connected to a trailer and pressing on the brakes you should see 2 blue lights flash on each side of the control knob. If you can tell me what you are seeing I can help you to determine what fault you may be having.
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  • Troubleshooting No Power To A Curt Spectrum Brake Controller In A 2022 Chevy Silverado 1500
    Hi Adam, Since you used the Curt Custom Wiring Adapter for Trailer Brake Controllers # C51525 to install the Curt Spectrum Trailer Brake Controller # C51170 you likely have either a blown trailer brake fuse or they just never installed one to begin with. The trailer brake fuse should be number 84 in the engine compartment fuse block. I recommend checking it and seeing if you're getting power or if you just need to add in a fuse to get power to the brake controller.
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  • What Colors Will Curt Spectrum Brake Controller Light Up with Brake Pedal Pressed
    The Curt Spectrum # C51170 will light up from green to red (with the trailer connected) depending on what power setting you chose. This will be the case whether you are parked or heading down the road. I confirmed this with my contact at Curt. I've also attached a photo showing what the display will look like as well as a review video you can check out.
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  • Troubleshooting a Curt Spectrum That Does not Go Through Calibration Sequence
    There could be a couple of reasons why your Curt Spectrum # C51170 is not calibrating, but it's likely due to your wiring. Even though you're using a plug in adapter # C51523, there still can be an issue with your vehicle wiring. I recommend physically checking your grounds, to make sure that it's to a clean secure surface. If your grounds are good, then check the white and black wires on the main module and make sure they're not flipped; If they are flip them and check again. I also...
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  • Curt Brake Controller Plug for a 2020 Ford Explorer
    Yes, the Curt Custom Wiring Adapter for Trailer Brake Controllers part # C51322 will allow you to use a Curt brake controller like the Curt Spectrum Trailer Brake Controller part # C51170 on a 2020 Ford Explorer (All Models). I checked with Curt just to confirm that the Curt Custom Wiring Adapter for Trailer Brake Controllers is indeed correct for a 2020 Ford Explorer so you can be confident this is the correct harness. The plug will be located under the driver dash, near the center console...
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  • Single Red LED Lights Up When Brakes Pressed on Curt Spectrum Trailer Brake Controller
    What you have is in fact the Curt Spectrum Trailer Brake Controller # C51170. The single red light means it is working properly. More lights will light up as more brake power is asserted. This all depends on the settings of the brake controller. If you haven't changed any settings yet I recommend starting on page 11 of the manual to get it properly setup and adjusted. I have attached the link to the instructions below.
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  • Curt Echo Operation With Panic/Emergency Stop Situation
    The Curt Echo Wireless Brake Controller # C51180 works well in a panic stop/emergency situation. The mobile app has an orange button that you press and hold for that feature. I've attached a video to assist. It works as well as any other controller as long as you have that Bluetooth connection. If you want a brake controller that has the physical button, then I recommend the Redarc Tow-Pro Elite Trailer Brake Controller # RED44FR which is a customer favorite because it can be fit...
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  • Recommended Brake Controller for a 2018 Thor Ace Motorhome
    For your 2018 Thor Ace Motorhome, I recommend using the Curt Spectrum Trailer Brake Controller part # C51170. The reason for this is because this unit is composed of two main parts, the control box and the output knob. The control box gets mounted out of site and then the output knob will get installed up on your dash for easy use and a very aesthetically pleasing look. The color output of the knob also helps with ease of use. Since your motorhome is on a Ford F-53 chassis, you can use...
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  • Is Curt Spectrum Compatible With Demco Stay-IN-Play Duo Braking System
    The Demco Stay-IN-Play Duo Braking System # DM86VR is a standalone system so no brake controller is required. The same is true for our other supplemental braking systems for flat towing. The Stay-IN-Play senses the rate of your RV's deceleration and triggers your towed car's brakes to slow down at the same rate just like a proportional brake controller. The Curt Spectrum # C51170 is only designed to work with trailer brakes.
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  • Troubleshooting Red Light On Curt Spectrum With Trailer Brakes Not Working On a 2014 Toyota Tacoma
    The first place I would start is with the Curt Custom Wiring Adapter # C51362 that you have connected between the Curt Spectrum Trailer Brake Controller # C51170 and your 2014 Toyota Tacoma. The red light that you are getting when the brakes are pressed indicates that the red wire that connects to the brake switch is either connected to the ground side of the switch or there is a short to ground. I do believe that you have a ground wire issue. The Tekonsha Plug-In Wiring Adapter 3040-P...
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  • Comparing the Curt Spectrum Brake Controller to Redarc Tow-Pro Elite
    By all accounts the Curt Spectrum Trailer Brake Controller # C51170 works well and is easy to use and install on most vehicles. It is a brand new item so not a lot of feedback has come in on it. I did learn a few things though after speaking with our install team about this controller. First, compared to the Redarc controller # RED44FR, the Curt Spectrum is easier to install. It can be surface mounted meaning that drilling is not necessarily required (depends on how you run the wiring)....
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  • Where is Brake Controller Adapter Plug Located In 2002 Dodge Ram Pickup
    The green connector in your truck is not the correct plug. It is normally a blue plug like what I have shown in the photo that plugs into the adapter part # C51332 if you are using a Curt brake controller like part # C51170. There will be a port to plug into if the truck came with a factory 7-way plug just to the right of the emergency brake. If the 7-way plug was installed after-market, you will need to see how far the wires from the plug are extended so you can complete the install...
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  • Recommended Brake Controller for 2018 Nissan Titan With Factory 7-Way
    For your 2018 Nissan Titan I very strongly recommend going with the Redarc Tow-Pro Elite item # RED44FR over the Curt Spectrum item # C51170, which does use Wiring Adapter item # C51382 to connect to your 2018 Nissan Titan. The Redarc Tow-Pro item # RED44FR, which you can install in your '18 Titan with Wiring Adapter item # 3050-S, is by far the superior option because it is not only extremely effective and responsive but its manual control knob makes it simple to use; the Tow-Pro can...
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  • Is 3.6V on 2020 Jeep Wrangler Unlimited Trailer Plug Abnormal
    If it's just a 4-Way Flat connector like the T-On # 118786 then I would be surprised to see that much power being pulled to the back of your 2020 Jeep Wrangler Unlimited, but if you have a 7-Way like what we find with the Wiring Kit # ETBC7 then 3.6V on the 12V power pin isn't out of the ordinary and you'll be fine. Attached are photos showing the functions per pin on both a 4-Way and a 7-Way connector for you to reference.
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  • Troubleshooting Curt Spectrum Output and Sensitivity Adjustment
    It sounds like the sensitivity needs to be adjusted on your Curt Spectrum # C51170 since it is too aggressive leading to the jumpy stop. To adjust the output and sensitivity you want to follow the instructions. This means you only make adjustments while stopped, with the transmission in park or neutral, parking brake applied, foot off the brake pedal, and no manual control actuation. Adjust the sensitivity by pressing the rotary knob until the brake control is in the sensitivity control...
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  • What Should Display of Curt Spectrum Show When Not Connected to Trailer
    Hey Paul, with the Curt Spectrum part # C51170 you should have blue lights on the sides of the display flashing when a trailer isn't connected and then the same lights go solid when the brakes are applied.
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  • Curt Spectrum - What Do Two Flashing Blue Lights Mean?
    Hello Trent, thanks for getting in touch. The two blue lights on the Curt Spectrum # C51170 knob mean the trailer is disconnected. The lights should flash blue when the trailer is disconnected or they will be steady blue with the brakes are pressed with no trailer connected. The green lights when towing are also normal. The knob will show green/red depending on your braking power setting. I have included the list of the LED color patterns for the knob below. If there is an issue you are...
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  • Recommended Plug and Play Brake Controller Adapter for a 2022 Nissan Pathfinder
    No, I am sorry we do not because Tekonsha did not make one for your 2022 Nissan Pathfinder. The Prodigy P3 Brake Controller item # 90195 includes a universal harness you can use but you'll need to cut and splice wires. Curt does have a plug in play adapter but it only works with their brake controllers. It is the Curt Custom Wiring Adapter for Trailer Brake Controllers item # C51382. It will allow you to easily install the Curt Spectrum Trailer Brake Controller item # C51170.
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  • Recommended Curt Brake Controller for a 2023 Jeep Gladiator
    Hey Ed, for your 2023 Jeep Gladiator it looks like you'll just want the Curt Spectrum Trailer Brake Controller # C51170. This is going to include the Spectrum brake controller, plus the wiring harness # C55FR. If there is anything else you need help with, feel free to leave a comment and I'd be happy to help!
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  • Troubleshooting Brake Lights Always on After Installing a Brake Controller
    Hey Honori, welcome back. The red wire being the wrong one would cause that issue if it was wired incorrectly but it would also leave your trailer brakes activated. I don't think it's that. It sounds to me like you have a short or fault somewhere in your tow wiring. Did you have any issues with your trailer lights before you installed the brake controller? If you don't know do you have another vehicle you can connect your trailer to? Isolating the problem to the trailer or vehicle is...
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  • Troubleshooting Random Lights on Curt Spectrum Brake Controller
    Hey Riley! Based on what you're describing with the random lights and flashing green it sounds like your Curt Spectrum # C51170 has an internal issue. Green flashing isn't even part of the troubleshooting guide and since you aren't hooked up to a trailer it wouldn't be ramping up green to try to calibrate. Since the brake controller has a limited lifetime warranty I would reach out to Curt to see if you can get a replacement.
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  • Recommended Brake Controller for Roadmaster Tow Dolly with Electric Brakes
    Hi Jerry; you don't need a specific brake controller for the Roadmaster Tow Dolly # RM-2050-1. Any electric brake controller will work. My personal recommendation would be the Redarc Tow-Pro Liberty Brake Controller # RED24FR. This brake controller is simple and reliable. The main unit installs behind the dash with only the control knob visible so it doesn't take up space in the cab. You will also need the # RED69FR for installation. There may be a custom wiring harness for your vehicle,...
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  • Curt Brake Controller Plug for a 2020 Ford Explorer
    Yes, the Curt Custom Wiring Adapter for Trailer Brake Controllers part # C51322 will allow you to use a Curt brake controller like the Curt Spectrum Trailer Brake Controller part # C51170 on a 2020 Ford Explorer (All Models). I checked with Curt just to confirm that the Curt Custom Wiring Adapter for Trailer Brake Controllers is indeed correct for a 2020 Ford Explorer so you can be confident this is the correct harness. The plug will be located under the driver dash, near the center console...
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  • Recommended Brake Controller for a 2018 Thor Ace Motorhome
    For your 2018 Thor Ace Motorhome, I recommend using the Curt Spectrum Trailer Brake Controller part # C51170. The reason for this is because this unit is composed of two main parts, the control box and the output knob. The control box gets mounted out of site and then the output knob will get installed up on your dash for easy use and a very aesthetically pleasing look. The color output of the knob also helps with ease of use. Since your motorhome is on a Ford F-53 chassis, you can use...
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  • Parts Needed to Add 7-Way and Brake Controller to 2007 Ford F-150 with 4-Way
    If your trailer does not have brakes all you would need is the part # 37185 as an adapter to convert the 4-way to a 7-way. If you do have trailer brakes you would need the # 3035-P, the # 37185, and a brake controller. For a brake controller I would recommend the Prodigy P2 Brake Controller part # 90885. This is our best selling brake controller because of how well it works and how easy it is to set up. Follow the 4-way trailer connector wires from the trailer connector to the front...
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  • Install Video For Brake Controller on 2018 Ford Explorer
    I have an install video linked to this page that shows the Curt Triflex part # C24VV being installed on a 2020 Ford Explorer with the harness part # C51322 which would cover the same exact process as the P2 part # 90885 with the # 3035-P that you referenced on a 2018 Explorer.
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  • Locating Factory Connector On 2021 Ford Explorer With 7-Way For Installing Trailer Brake Controller
    That is the correct plug for the Tekonsha Plug-In Wiring Adapter # 3035-P under the dash of your 2021 Ford Explorer with factory tow package. I have linked a video of an installation we did with the Curt Triflex # C24VV and Adapter # C51322 and you can see he removes the plug around the 8:00 minute mark in the video.
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  • Brake Controller Installation on 2001 Ford E350 Van
    Brake controllers like the # C49UR Curt Assure aren't a vehicle-specific item. You can install a brake controller on just about any vehicle. What the installation will involve will depend on whether your E350 is equipped with a trailer connector and what type it is. If you have the factory 7-way trailer connector, it'll be a plug-and-play installation using the # C51322 brake controller harness. The harness plugs in to the connector under the dash near the e-brake pedal (see provided...
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  • Brake Controller And 7-Way For 2011 Lincoln Navigator With Factory 4-Flat
    We can get your 2011 Lincoln Navigator with the factory 4-way set up with a 7-way and trailer brake controller; and you are correct that a 7-way has a 12 volt pin which allows you to trickle charge an RV battery. So because your '11 Navigator has the factory 4-way, the only thing you need to add for the 7-way is the following part: - Adapter 4-Pole to 7-Pole and 4-Pole # 37185 With that, the other thing you will need is the brake controller as well as the plug-in adapter, and I recommend...
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  • What Is Needed To Install Brake Controller On 2005 Ford F-150 With Factory Tow Package
    On your 2005 Ford F-150 with the towing package, there will be a port under the dash that the Curt Custom Wiring Adapter, part # C51322 plugs into. I have attached a photo that has a red arrow pointing to the location on your truck. The Curt Venturer Trailer Brake Controller, part # C74VV is a time-delayed brake controller designed for a trailer with electric brakes or and Electric Over Hydraulic. It uses a preset sensitivity setting to activate your trailer brakes when you press the...
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  • Is There a Brake Controller Plug on the Police Interceptor Models of the 2016 Ford Explorer
    Yes. I was able to find out from my contact over at Curt that there is a factory plug in on the Police Interceptor models of the 2016 Ford Explorer. If you're using a Tekonsha brake controller like the P3 # 90195 you'll want to use the # 3035-P adapter and if you've got a Curt brake controller you can use the # C51322. The location of this plug is the same place that it would be on a standard Explorer, under the dash near the center console, but it might just be tucked behind some other...
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  • Location Of Under Dash Brake Controller Port On 2002 Ford F150
    You are right that the gray port is right next to the diagnostic port under the dash on your 2002 Ford F-150 for the brake controller. I have attached a photo that shows where the brake controller port is in relation to the location of the diagnostic port. I have also attached a helpful article for brake controller installation on Ford full-size pickups you can check out.
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  • Wiring Harness For Curt Brake Controller on 2002 Ford F-350 Super Duty
    Yes the wiring harness for your 2002 Ford F-350 Super Duty is indeed the same Curt brake controllers. The Curt brake controllers for your truck will use the Curt Wiring Adapter # C51322.
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  • Can you Increase the Towing Capacity on a 2015 Jayco Precept 29UM on Ford F-53 Chassis?
    So your 2015 Jayco Precept 29UM is on a Ford F-53 18K chassis which is the limiting factor with a towing capacity of 5,000lbs. I believe this is the restriction you are having. The Curt Receiver # C14048 you found while having a higher rating will not increase your towing capacity. If you can find a lighter trailer or vehicle to tow you can install a Curt TriFlex NEXT Trailer Brake Controller # C24VV with the Wiring Adapter # C51322 which will connect under your dash. Check out the...
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  • Pin Out of Brake Controller Connector on 2021 Land Rover Range Rover Sport
    Other than some slight cosmetic changes, there haven't been any appreciable changes in the chassis of the Land Rover Range Rover Sport since the first model year of the 2nd generation in 2013. Tekonsha/Draw-Tite nor the rest of the companies have tested the pinout of the 2021 model, but there's no reason to believe it's been changed from the 2020 model. I've heard nothing that indicates the pinout of the 2021 is any different, but you can confirm this for yourself as described below. The...
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  • Brake Controller Connector Location on 2000 Ford Expedition
    The connector you're looking for is gray in color, and is typically located to the left of the OBDII connector located under the dash below the steering column. According to my research, all models of the 2000 Expedition were equipped with the connector, so it should be under there somewhere. Try looking behind the OBDII connector. It's also possible that the connector is taped to another nearby wiring harness and the tape is covering the connector. If you use a Curt brake controller like...
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  • Where is the Brake Controller Installation Plug on a 2000 Ford F-250
    The plug you're looking for on your 2000 Ford F-250 is likely located behind some of the wire looms or possibly even tucked away in a nook off to the side when you remove the dash panel, but it will be there somewhere. Once you find this plug you'll be able to use the Curt Custom Wiring Adapter for Trailer Brake Controllers - Dual Plug In # C51322 to install the Curt Tri-Flex # C74VV. I've linked a few installation videos of brake controllers that use a brake controller adapter plug so...
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  • Trailer Hitch & Brake Controller for 2005 Ford F-150 w/ 4-Way & No Factory Hitch for Heavy Trailer
    We can get your 2005 Ford F-150 with a 4-way set up with a trailer hitch receiver and brake controller so you can tow your trailer. Since your truck does not have a factory hitch, and you need to tow a heavy 7,000 lb trailer, the hitch that will fit and has the needed capacity is the Curt Trailer Hitch Receiver # C14357. This is a Class IV hitch with a 10,000 lb towing capacity, which is the most available for your F-150. As for the brake controller, since you already have a 4-way, in...
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  • Troubleshooting Weak Trailer Braking with Curt Tri-Flex C24VV
    Thank you for purchasing your Curt Tri-Flex trailer brake controller # C24VV and matching wiring adapter # C51322 for your 2009 Lincoln Navigator. I am sorry you are having an issue with the trailer braking power being weak. If your voltage readings are taken on the trailer at the brake assemblies, and you are reading 12V there, then chances are that the issue is on the trailer side. The pad tension, which is set with the star wheel adjuster, should be set so that with the trailer jacked...
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  • Curt Echo Under Dash Wireless Trailer Brake Controller For a 2017 Land Rover Discovery Sport
    With your 2017 Land Rover Discover Sport having the factory tow package wiring you will be able to connect the Curt Echo Under-Dash Wireless Brake Controller # C27JR using the Pigtail # C51322. The Manual Override Button # C83HR can be added if you do not want to keep your phone on with the app open to manually activate the trailer brakes when needed.
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  • Where is the Wiring Harness for a Curt Custom Wiring Adapter # C51322 on a 1996 Ford F-150?
    According to the instructional manual of the Curt Custom Wiring Adapter for Trailer Brake Controllers - Dual Plug In # C51322, the harness on your 1996 Ford F-150 is located underneath the dashboard near the center console. I went ahead and attached a photo to this answer that I highlighted that shows the location.
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  • Where is Install Connector on 2014 Ford Explorer for Curt Brake Controller
    The correct install harness for a Curt brake controller in a 2014 Ford Explorer is the part # C51322. The harness you are looking for on your vehicle will be under the dash to the center towards the center console. I attached an install video that shows a different brand controller and harness installed in a 2013 Ford Explorer which will be the exact same process. Around the 10 minute mark is where the connector on the vehicle is found.
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  • Brake Controller and Install Harness for a 2013 Ford Explorer
    For installing the Tri-Flex brake controller part # C24VV in a 2013 Ford Explorer the correct install harness is the part # C51322. I confirmed this with Curt as a fit for your vehicle. he Ford Explorer and Mercury Mountaineer have 6-pin connectors behind the glove box on the passenger's side that this connector will install into.
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  • Brake Controller Installed on 2001 Ford Van Causes Turn Signal to Malfunction
    You are using the factory pigtail provided when you purchased the vehicle, not the # C51322, is that correct? If this is the case, the factory pigtail uses a different wire color code than the aftermarket ones, which match up color for color. Before proceeding further, lets make sure you have the pigtail wired correctly to the brake controller. An incorrectly wired harness or pigtail could cause the problem you describe. Over the years, Ford has made two different factory pigtails, one...
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  • Installing a Curt Brake Controller on a 2005 Ford F-150 with Factory 4-Way Connector
    Looks like you have been doing a bit of homework! Since you already have the factory 4-Way connector installed on your 2005 Ford F-150, the Universal Installation Kit # ETBC7, some extra wire found in kit # 10-2-1, and the Curt TriFlex Trailer Brake Controller # C24VV with the Adapter # C51322 is exactly what you need. I have attached some sample installation videos as well as a helpful article on installing the ETBC7 kit for you to check out.
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  • Parts Needed to Install Curt Spectrum in 2006 Ford E-350
    Hey Nathaniel, we can definitely help you install the Curt Spectrum Brake Controller part # C72SV in your 2006 Ford F-350 but if you don't have the factory 7-way you wouldn't have the factory tow package so you would need to hardwire this controller in. If you don't have a 4-way you'd need to start with that with the part # C56020 and then to convert to a 7-way so that you can wire in a brake controller you'd also need the part # ETBC7 which comes with everything needed to also wire in...
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Do you have a question about this Trailer Brake Controller?


Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Jameson C
Expert Research:
Jameson C
Employee Wilson B
Updated by:
Wilson B
Employee Amanda K
Updated by:
Amanda K
Employee Sabrina W
Written by:
Sabrina W

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