Curt Spectrum Trailer Brake Controller

Curt Spectrum Trailer Brake Controller

Item # C51170

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Brake Controller

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Brake Controller C51170 - Indicator Light - Curt
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  • Proportional Controller
  • Curt
  • Electric
  • Electric over Hydraulic
  • Up to 4 Axles
  • Out of Sight Mount
  • Automatic Leveling
  • Indicator Light
  • 360 Degrees
The Curt Spectrum trailer brake controller controls up to 8 trailer brakes with a simple push-button rotary knob. Module can be mounted anywhere and at any orientation. Easy plug-and-play installation. Includes mounting hardware. Call 800-298-8924 to order Curt brake controller part number C51170 or order online at etrailer.com. Free expert support on all Curt products. Guaranteed Lowest Price and Fastest Shipping for Curt Spectrum Trailer Brake Controller. Brake Controller reviews from real customers.


  • All Info
  • Reviews (7)
  • Q & A (23)
  • Videos (3)
  • Photos
  • Why etrailer?

Curt Brake Controller - C51170

The Curt Spectrum trailer brake controller controls up to 8 trailer brakes with a simple push-button rotary knob. Module can be mounted anywhere and at any orientation. Easy plug-and-play installation. Includes mounting hardware.


Features:

  • Controls all brake settings with a simple, push-button rotary knob
  • Clean, dash-mounted, OEM-style user interface with 10 tri-color LEDs
  • Main module can be mounted anywhere, at any orientation, out of sight
  • Highly responsive, smooth stops with triple-axis, motion-sensing accelerometer
  • Easily accessible manual override
  • Two installation options: drill mount or surface adhesive mount
  • Equipped with a quick plug for easy plug-and-play installation
  • Compatible with low voltage or pulse width modulation (PWM) systems
  • Operates 2-8 trailer brakes at a time (1-4 axles)
  • User-selectable power output and trailer brake light activation
  • Automatic leveling and calibration eliminate setup requirements
  • Built-in reverse polarity and short circuit protection
  • Tow vehicle low voltage and trailer disconnect indicators
  • Compatible with ABS and cruise control
  • Limited lifetime warranty


51170 Curt Spectrum Trailer Brake Controller



C51170 Installation InstructionsInstallation Details C51170 Installation instructions


California residents: click here

Video of Curt Spectrum Trailer Brake Controller


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




Video Transcript for Curt Brake Controller - Proportional Controller - C51170 Review

Speaker 1: Today taking a lot at the Curt Spectrum Trailer Brake Controller. The Spectrum Trailer Brake Controller gives you powerful precise braking operations in an extremely simple design inside your vehicle.The main module which is this part here. This can be mounted anywhere at any orientation. It can even be mounted behind the dash of the vehicle for a completely out of sight design.The interface is a single rotary knob with a push button in the center. This unit allows the driver to easily adjust the brake power output. So, rotating the knob clockwise increases the brake output.

Rotating the knob counter clockwise decreases the braking output. It features ten tri color LED's to show the automated power output of the control and the brightness can be adjusted as needed.Now, the main module, again this part here. This has a triple access motion sensing accelerometer that's able to detect the inertia of the vehicle and trailer no matter what. So, whatever speed and whatever grade your traveling on, up or downhill. The spectrum produces the exact amount of power needed for a smooth safe stop every single time.It also features automatic leveling and calibration so that eliminates set up requirements.

This is a fully compatible unit so it's able to operate up to eight trailer brakes at a time. So, anywhere from one to four axle trailers. It can be used on vehicles with ABS brakes and cruise control. It works with low voltage and PWM systems.Installation is quick and easy. Two installation options are included.

You'll notice that is has the pre-drilled holes here so you can actually drill this in so you can mount it using screws. This as well comes with a base and hardware so you can actually mount this to your dash and give it that OEM look, like it looks like it's from the factory that way. The design of the unit's going to match the design of the interior of your vehicle. So, really nice, again two installation options are included. Drill mount or surface adhesive mount and it does come with adhesive pads.It comes with a quick plug for easy plug and play installation.

This is designed to connect to vehicle specific harness plug and then plugged directly into your vehicle. It can be hardwired as well if there is not a plug available for your specific vehicle.The unit features four modes and three indicators. So, I'm going to spend some time going over those real quick. When it comes to the four modes that it offers. It offers manual, which is indicated by red LED's, brightness, which is indicated by white LED's, output which is green and red and sensitivity which is blue and red.Then, when it comes to the indicators, it's calibration, which it will ramp up so it will be like a dotted line going up. Overload, which will be flashing and then disconnected which is also flashing.Now, it does come with a quick reference guide so it shows you right here all the indicators. So, here's your four modes, again, manual, brightness, output, sensitivity, and it shows you the colors that go with it. Red, white, green and red, blue and red. Then you have calibration which is green, that'd be ramp up, so each line will appear individually and then you have overloaded which would be flashing red and yellow. Disconnected would be flashing blue.You definitely want to keep that quick reference guide handy. It's just a small card you can put in your wallet, in your glove compartment, anything like that. But, calibration simple indicates when the brake control is self calibrating it occurs when power is applied to the brake control and the trailer is connected.The overload indicator indicates when the brake control is in an overload or short circuit condition and then the disconnected indicators indicates when the trailer has been disconnected or if the brakes are pressed with no trailer connected at all.The manual override can be engaged by pushing the middle button and holding it down. So, pressing and holding the button during any mode activates the manual brake output. It functions as time based and ramps up over time. The red LED's light up in a sequence proportionally to the brake output. You can adjust the gain and active process by rotating the knob clockwise to increase and counter clockwise to decrease the gain while holding the button down.Then, releasing the button returns to the previous mode every time. The manual control can be set up to allow 100% of the units power to the trailer brakes or to limit power to the output control setting. This feature is set up at installation using the small switch at the rear of the unit.Also, brake light activation with the manual control is an optional setting as well. Some tow vehicles circuits do not allow power for brake lights from a second source so in these applications the brake light feature can be switch off using a second small switch at the rear of the unit.Then it also features sensitivity control so you can adjust the trailer brake aggressiveness simply by using the knob to increase or decrease the sensitivity. That's great because that can be adjusted for individual driver preference, trailer load changes, or changing road conditions.The product is a very clean system. It's very easy to get connected. I do want to point out that I already made my connections here but this can be disconnected really easily and then if you want to feed the wires through your dash, like through this mount here and through you dash for that nice OEM look, mounted to your dash. Each individual wire actually feeds into this plug right here. So, I already did the connecting but when it comes to you this will not be connected. The install guide walks you through how to do it. Very easy, only took me about, really just a few seconds, maybe up to a minute to get all those connected. Then once you have the wires connected and you have the wire routed where you want it simply just plugs in right there. That's all there is too it.So, nice, small, compact unit. Put it in the palm of my hand. You can see how it fits. How small it is. Same right here, just a nice small design. Compact, very clean, very easy to use.That's going to do it for today's look at the Curt Spectrum Trailer Brake Controller.


Customer Reviews

Curt Spectrum Trailer Brake Controller - C51170

Average Customer Rating:  4.9 out of 5 stars   (7 Customer Reviews)

The Curt Spectrum trailer brake controller controls up to 8 trailer brakes with a simple push-button rotary knob. Module can be mounted anywhere and at any orientation. Easy plug-and-play installation. Includes mounting hardware.

- C51170

by:


After knocking my knee into my brake control for the last 20 years with the new GMC Savana I wanted something a little different. Technology has moved trailer brakes forward quite a bit and Etrailer has an immense amount of information! I original looked at the Tekonsha Prodigy RF Wireless Trailer Brake Controller but it would take up a valuable power outlet with the control unit but it's kind of trailer specific as the control mounts to the trailer you never know when you might have to tow another trailer and was leery of the control wandering around the console, Next up was the Redarc Tow-Pro Elite Trailer Brake Controller but did not like the control mounting options. Then ran across the Tuson DirecLink Lite Trailer Brake Controller crazy amounts of technology in this unit but again concerns over the remote so after lots of head scratching the Curt Spectrum seemed like the best choice. Easy install very small control box mounted easily with the included double stick tape under the dash. I moved my traction control button to the left where a blank filler was you have to cut a little piece of it off to get it into the hole as the are "keyed" to specific locations I guess but worked perfectly! I left enough slack in the connection so I can simply disconnect the harness if I am not towing for awhile as the blue indicator lights come on every time you hit the brake if its disconnected. Just installed it so I will send an update after our first trip with the new rig but I'm thinking it will work as described. Thanks again etrailer fast shipping great information!!!! 597075



- C51170

by:


Was an easy install for my 2018 Grand Cherokee with the addition of the specific cable adapter. I was able to secure the main unit under the dash on-top of the diagnostic port bracket and then run the wire for the dial up the drivers side of the dash so that it is concealed once the door is closed. The dial now sits on-top of the left side of the dash by the windshield pillar. I wanted to make this a temporary install incase I traded the truck in the near future. I have not hooked up a trailer yet so can not give a review on how well it works. 574127



- C51170

by:


I've I stalked it but haven't used it yet because I thought the right adapter came with. I like the sleek fit to it so nothings hitting my knees etc. I recommend the design I stall forsure. Not sure how good it works yet like I said. I have a 2006 ford f150 fx4. 568517


Comments

For your 2006 Ford F150, youd need the # C51322
Curt Custom Wiring Adapter for Trailer Brake Controllers - Dual Plug In
$8.89
wiring harness. This will allow a plug and play installation. Once end will plug into the brake controller unit, the other into the gray tow package plug shown in the photo you provided.

-- Mike L - 09/25/2018

44003

- C51170

by:


I was looking for a unit that was out of way and would look like it belonged in the cab of the Chevy Colorado pickup. The Curt Spectrum control was easy to install under the dash and out of the way. The LED knob went on the dash with the wires going through the dash out of sight. 557904



- C51170

by:


Great product. Easy to install. Easy to setup and program. 574466



- C51170

by:


fast shipping. easy to install,makes nice factory look. 573455



- C51170

by:


received my package two days before i expected it. 523613


10
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Ask the Experts about this Curt Brake Controller
Do you have a question about this Brake Controller?


  • 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 # 331-EBRH-ACCV2, 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...
    view full answer...

  • Difference Between Proportional Brake Controller and Time-Delayed Controller on 2018 Toyota Tundra
  • The difference between a proportional brake controller and a time-delayed brake controller is that a proportional controller is pretty simple. A time-delayed controller like the Curt Discovery # C51120 will apply your trailer brakes each time you press the brake pedal in your 2018 Toyota Tundra; it is called time-delayed because there is a slight delay from the time you press your Tundra's brakes to the time the controller reaches max power output. A proportional brake controller like...
    view full answer...

  • 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 # 331-EBRH-ACCV2 over the Curt Spectrum # C51170, which does use Wiring Adapter # C51382 to connect to your 2018 Nissan Titan. The Redarc Tow-Pro # 331-EBRH-ACCV2, which you can install in your '18 Titan with Wiring Adapter # 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 also be mounted...
    view full answer...

  • Recommended Brake Controller and Wiring Harness for 2019 Honda Ridgeline
  • For your 2019 Honda Ridgeline, the Curt Custom Wiring Adapter for Trailer Brake Controllers - Dual Plug In # C51392 is a confirmed fit. The installation will be under the dash, left of the steering column and near the emergency brake pedal. I recommend pairing this with the Curt Spectrum Trailer Brake Controller # C51170 for a really clean dash and easy function. I've attached a video to further assist.
    view full answer...

  • Comparing the Curt Spectrum Brake Controller and Redarc Tow-Pro Elite for a 2016 Audi Q5
  • Both the Curt Spectrum # C51170 and the Redarc Tow-Pro Elite # 331-EBRH-ACCV2 are excellent brake controller options for your 2016 Audi Q5 but in comparison I recommend going with the Tow-Pro Elite over the Spectrum. Although both controllers can be used as proportional brake controllers (they activate your trailer brakes at the same time and with the same intensity as the brakes on your Q5) the Tow-Pro Elite can also be switched to "User Control" mode which means your trailer brakes...
    view full answer...

  • Trailer Disconnected Indictor When Trailer Is Disconnected From Curt Spectrum Brake Controller
  • I will be happy to assist you with the issue you are having with the Curt Spectrum Trailer Brake Controller # C51170. I reached out to my contact at Curt and they indicated that the disconnected light only comes on when you hit the brakes with your trailer disconnected. Curt advised that there is no way to disable this feature without disconnecting the entire unit.
    view full answer...

  • Dimensions of Components in Curt Spectrum Trailer Brake Controller C51170
  • On the Curt Spectrum Trailer Brake Controller # C51170 the round base of the rotary knob component measures 1-3/4-inches in diameter and has a depth of 1-1/2-inches. The main control box component measures 3 x 3-1/2-inches overall and has mounting holes spaced apart on center at 3/4 x 2-3/4-inches. I made a photo with these dimensions which is linked for you. The Spectrum does have a 10-LED display but the controller output is not limited to only 10 specific power and boost settings.
    view full answer...

  • Brake Controller Wiring Adapter for 2019 Ford Ranger
  • Based on my research the 2019 Ford Ranger will come with the Brake Controller input for a wiring harness from the factory. Curt Spectrum Trailer Brake Controller # C51170 you asked from would use the # C51436 harness. Tekonsha Controllers like the Prodigy P3 # 90195 would use the # 22292 harness. RedArc Controllers like # 331-EBRH-ACCV2 would use # 331-TPH-007. A universal pigtail harness would be # TM75272. If you want to hardwire the brake controller to your trailer connection...
    view full answer...

  • Do I Need a Brake Controller for a 2007 Chevy Tahoe with Tow Package Towing a 2017 Jayco Baja
  • Assuming your trailer has brakes, you may still need a brake controller. GM started putting factory brake controllers in their trucks and SUVs in 2007, but it was an option. The factory brake controller did not come standard with the tow package. If you have a factory brake controller, you will see a black square with a horizontal lever and two buttons (+ and -) just below your light controls to the left of your steering wheel. If you don't have that, then you will need to add a brake...
    view full answer...

  • Brake Controller Installation on Side of Center Console
  • The brake controllers # 90195 and # TK90160 cannot be mounted to the side of a center console due to the internal sensor that detects deceleration. For your desired mounting position, I recommend the Redarc Tow-Pro Elite Trailer Brake Controller # 331-EBRH-ACCV2, the Hopkins InSIGHT Flex-Mount Trailer Brake Controller # HM47297, or the Curt Spectrum # C51170. Each of these options will use a box that has that sensor you can mount under your dash out of sight and give you the controls...
    view full answer...

  • Curt Spectrum Trailer Brake Controller on a 2019 Subaru Ascent
  • You will have to hardwire the Curt Spectrum Brake Controller part # C51170 to your 2019 Subaru Outback Wagon but it is a pretty simple process. You will need to first start with a 4-way confirmed as a fit for your vehicle. For that you'd want the Tekonsha part # 118467 which is a plug and play style of install. From there you would need to convert the 4-way to a 7-way so that you can install the brake controller. For that you will want the Brake Controller Install Kit and 7-Way Adapter...
    view full answer...

  • Wiring Harness for Curt Spectrum Trailer Brake Controller on 2016 Jeep Wrangler Unlimited
  • The correct adapter for the Curt Spectrum # C51170 trailer brake controller on your 2016 Jeep Wrangler Unlimited is Wiring Adapter for Curt Trailer Brake Controllers # C51515. One end of this adapter will plug into your Spectrum brake controller and the other end will splice into your Jeep's brake controller wiring; you can use Butt Connectors # 05731-5 to help make this connection. I have added a link to a video review of Adapter # C51515 for you to check out as well.
    view full answer...

  • Recommended 7-Way and Brake Controller for a 2019 Nissan Frontier
  • The wiring that I recommend installing on your 2019 Nissan Frontier so that you have a fully functioning 7-Way is the Tekonsha T-One # 118266 because it is the most reliable option available. This comes with the wiring and relays needed for the installation but you may be interested in the mounting brackets # PK12711U and # C57202 as well to easily mount the 7-Way. If you don't already have a brake controller then I recommend going with the Curt Spectrum # C51170 because it is a proportional...
    view full answer...

  • Can Curt Spectrum Brake Controller Install in 2011 Ford F-350 with Integrated Brake Controller
  • The Ford factory brake controller that is in the dash does not have to be removed. You will need to unplug the connector under the dash and plug in the # C51432 adapter for the Curt Spectrum brake controller # C51170 to the factory brake controller plug behind the dash. The vehicle will need the computer flashed so it will keep from searching for the connection to the OEM brake controller in the future, eliminating any fault codes. This will usually have to be done at the Ford Dealer.
    view full answer...

  • Comparing Curt Spectrum and Redarc Tow-Pro Brake Controller for 2018 Toyota Tundra
  • Both the Redarc Tow-Pro Elite # 331-EBRH-ACCV2 and the Curt Spectrum # C51170 Trailer Brake Controller offer a sleek OEM design that gets away from the traditional knee knocker mounted options that take up a lot of space in the cab. Between these two brake controllers though I do recommend going with the Redarc # 331-EBRH-ACCV2 for a couple of reasons. The first reason is an aesthetic one. One of the main benefits of both controllers is the subtle design that tries to blend in with...
    view full answer...

  • Does Curt TriFlex Plug Into 2007 Chevy TrailBlazer
  • Even if your 2007 Chevy TrailBlazer has a factory 7-way there is not a plug underneath the dash for a trailer brake controller such as the Curt Spectrum # C51170; you will need to hardwire it with Wiring Adapter # C51515 though the wires will already be run if you have the factory 7-way (you should already have a factory 4-way). If you do not have the factory 7-way you will need to add the Universal Installation Kit for Trailer Brake Controllers # ETBC7. I've added a link on installation...
    view full answer...


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Info for this part was:

Edited by:
Lindsey S
Expert Research:
Michael H
Expert Research:
Jameson C
Video Edited:
Jacob T
Expert Research:
John H
Expert Research:
Adam R
Installed by:
Cole B
Video by:
Chris R
Photos by:
Stacy F
Written by:
Kristina F

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