bing tracking image
  1. Custom Fit Vehicle Wiring
  2. CURT
  3. Custom Fit
  4. Trailer Hitch Wiring
  5. 4 Flat
  6. Converter
Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector

Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector

Item # C56231
Retail:$74.53
Our Price: $45.95
You Save: 38%
Custom Fit Vehicle Wiring

Will this fit?

To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.

Shipping Weight: 0.85 lbs
Add to cart
In Stock
zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images

Need help with installation?
Locate installers near me
Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. T-connector plugs directly into existing wiring - no cutting, splicing or tapping required. Converter is made using SMT to ensure superior performance. 1-800-940-8924 to order CURT custom fit vehicle wiring part number C56231 or order online at etrailer.com. Free expert support on all CURT products. Great prices and Fastest Shipping for Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector. Custom Fit Vehicle Wiring reviews from real customers.
  • All Info
  • Reviews (7)
  • Q & A (0)
  • Photos

CURT Custom Fit Vehicle Wiring - C56231

  • Custom Fit
  • Trailer Hitch Wiring
  • 4 Flat
  • Converter
  • CURT

Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. T-connector plugs directly into existing wiring - no cutting, splicing or tapping required. Converter is made using SMT to ensure superior performance.


Features:

  • Provides a 4-way flat trailer connector at the back of your vehicle to power your trailer's signal lights
    • Compatible with 5-pole, 6-pole and 7-pole adapters (sold separately)
  • Connects quickly and easily - no cutting or splicing of wires
    • Locate connection points behind tail lights
    • Plug in T-connector
  • Includes a tail light converter to ensure that your vehicle's wiring matches that of your trailer
  • Constructed using surface-mount technology (SMT) for consistent, reliable performance
    • Maximizes trailer light yield and intensity while producing minimal heat
    • Ensures superior operation in rough road conditions
  • Comes with dust cap for 4-way flat connector


Specs:

  • Maximum amperage:
    • Stop/turn lights: 3 amps per circuit
    • Tail lights: 5 amps per circuit
  • Limited 1-year warranty


Installation

This custom-fit T-connector plugs into your vehicle's wiring harness, which is located behind the driver's-side and passenger's-side tail lights. You will have to remove the floor coverings and the scuff panel, and pull back the felt trunk liner to access these connection points. Once installation is complete, the 4-way connector will be stowed in an out-of-the-way location within your trunk.


It is recommended that you use a small amount of grease on all electrical connections - the plugs on your automobile and the 4-pole connector itself - to help prevent corrosion.


Tail Light Converter with Surface-Mount Technology

A tail light converter is built into this T-connector. Because most trailers run on a two-wire system - wherein the brake and turn signals are carried on one wire - the separate brake and turn signals from your vehicle's three-wire system need to be combined so they are compatible with the wiring system of the trailer. This converter combines the brake and turn signal functions of your automobile so that they run on one wire to properly activate your trailer's tail lights. Note: This will not affect how the tail lights on your vehicle operate.


Curt builds each tail light converter using surface-mount technology (SMT). This method of construction involves soldering electronic components directly to the surface of a printed circuit board. SMT eliminates the need for leads, which are used in older through-hole technology. The result is a circuit board that is smaller yet provides more routing area and that offers superior performance, reliability and durability.


Curt SMT Circuit Boards

Circuit boards constructed using SMT have been shown to perform better under rough conditions with excessive vibration than those made using the through-hole method. And where would vibration be more likely to occur than in towing applications? Curt converters also produce less heat, leading to increased durability and longer life. In addition, lower levels of resistance ensure better performance, especially for parts that operate at higher frequencies.


Each Curt circuit board is made using high-quality components that are pieced together in the most technologically savvy fashion, leading to greater predictability and reliability in functioning.



56231 Curt T-Connector - Surface Mount Technology - 4 Wire

Installation Details C56231 Installation instructions

This Product Fits The Following Vehicles



California residents: click here


Customer Satisfaction Score:


Customer Reviews

Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector - C56231

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

Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. T-connector plugs directly into existing wiring - no cutting, splicing or tapping required. Converter is made using SMT to ensure superior performance.

by:

Waiting for installation



by:
2008 Acura TL

Easy to install. Works great too. Acura TL 08.



by:

Installed exactly as the video describe d!



by:

Easy to install. Has worked as expected.



by:

Quick delivery. The product was exactly as described and easy to install!



by:



by:


7
7

See what our Experts say about this CURT Custom Fit Vehicle Wiring

  • Where Does a Trailer Wiring Harness Install on a 2006 Acura TL
    The trailer wiring harnesses for the 2006 Acura TL, such as # C56231, plug in line with the tail lights on the vehicle. I have linked the instructions for you.
    view full answer...
  • Recommended Hitch and Accessories for Towing 4X8 Rental Trailer w/ 2006 Acura TL
    Although they have the same weight capacity, I'd rather see you use the Curt Class I hitch, part # 11321. Rather than bolting to the underside of the trunk pan like the Draw-Tite, the Curt hitch bolts to the underside of the rear bumper beam which in my opinion would make for a sturdier installation. The hitch has a 2000 lb towing/ 200 lb tongue weight capacity that you'll want to remain well below. You'll also need the following to complete your towing set-up: Trailer wiring harness,...
    view full answer...
  • How to Find Rise/Drop of Ball Mount Needed for Towing Small Aluminum Boat with 2007 Acura TL
    When we installed the Draw-Tite # 24755 Class I hitch on a 2007 Acura TL, we found that the inside top edge of the receiver tube sat 10-1/2 inches above the pavement. To determine which ball mount would place your trailer as close to level as possible, you'll need to put the boat trailer up on it's jack so it's level, then measure from the bottom edge of the coupler to the ground. The height difference between 10-1/2 inches and the level trailer coupler height equals the amount of rise/drop...
    view full answer...
  • Is Drilling Required To Install Curt Trailer Hitch # 11321 On My 2005 Acura TL
    Installation of the Curt Trailer Hitch, part # 11321, does require drilling on your 2005 Acura TL. The hitch will attach to the bumper beam, so it does not require trunk access. The Curt Trailer Hitch # 11321, includes a drawbar, pin and clip. To complete your towing setup you may be interested in the following items: 1-7/8 Inch Hitch Ball, part # 19256 2 Inch Hitch Ball, part # 19258 Vehicle Wiring, part # C56231 If you plan on using a hitch mounted bike rack, you will need to use a...
    view full answer...
  • Troubleshooting No Brake Lights on 2004 Acura TL with Trailer Connector Installed
    Lets see if we can get you going. Let me know if any of the suggestions that I make sound like they will work or if you have already checked the suggestions I make here. When you checked the output at the 4-Way connector was the trailer hooked up? If so unhook the trailer and recheck the voltage. If you have twelve volts at the green and yellow connections on the 4-Way harness without the trailer connected then the problem is most likely a ground issue on the trailer side. Check all of...
    view full answer...
  • Difference in Hidden Hitch # 60814 and Draw-Tite Hitch # 24755 For 2008 Acura TL
    You are correct the Hidden Hitch Class I 1-1/4 Inch Hitch, part # 60814 (no longer available), and the Draw-Tite Class I 1-1/4 Inch Hitch, part # 24755, are the same hitch produced by Cequent Performance Products. Both of the hitches will fit your 2008 Acura TL. The # 24755 Draw-Tite hitch does not include the ball mount and pin and clip. This hitch is sold to someone that might be using the hitch to carry a bike rack on the rear of their vehicle and will not need the ball mount. I am...
    view full answer...
  • Can 2008 Acura TL Tow 1,000 lb Jet Ski
    I looked up the towing capacity of your 2008 Acura TL and found it can tow up to 1,000 lbs so with a hitch installed like the Curt # 11321 you'd be able to tow your jet ski trailer as long as it's under the 1,000 lb capacity of the vehicle. For trailer wiring you'd then want the part # C56231 which is a custom fit. For a ball mount you'd then want # 3594 and hitch balls # 19258 for a 2 inch ball or part # 19256 for a 1-7/8 inch ball.
    view full answer...
  • Troubleshooting Voltage at 4 Pin Flat Trailer Connector
    You should be getting 12 volts from each function when that function is active. The amperage will be less and can vary between functions. You can use a multimeter like # PT89ZR to check this. If you have a specific part number you want me to check into for the amperages let me know as these are year/make/model specific and can even vary slightly between brands.
    view full answer...
  • Trailer Turn Signals Flash Very Dim and Show Inconsistent Voltage
    First, I would not immediately dismiss a bad ground simply because there are so many of them in an electrical system that could be faulty. While there may be some fluctuation in the voltage when the turn signal is cycling on and off, it seems like the problem you are having is different than that. There is an easy way to determine where the problem is. With a trailer disconnected, check the voltage on the turn signals at the vehicle side trailer connector. If they are weak there you know...
    view full answer...
  • Curt Wiring Harness Short to Ground Turns Off Cruise Control on a 2005 Acura TL
    It sounds like there is a short or possibly a broken or bent pin in the Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector Item # C56231 for your 2005 Acura TL. Check where it connects to the vehicle tail light wiring and see if the pins in the connectors for the wiring harness and vehicle are intact and there is no corrosion. The wiring harness does not have to be grounded to the battery or powered by the battery. If you are getting voltage on the white ground...
    view full answer...
  • Troubleshooting Voltage Drop When Connecting LED Trailer Lights to Wiring Harness
    It sounds like the ground connection often in the mounting hardware of your lights is not connected well. This ground needs to be bare metal to metal and free of all corrosion and debris. If with a clean ground you still are not getting the desired function, you will need to add more resistance to the light fixture by adding a load resistor like the LED Light Bulb Load-Resistor Kit # DI34ZR to draw the desired power for proper function.
    view full answer...
    Image 1 for
  • Will Draw-Tite Trailer Hitch 24755 Fit a 2007 Acura TL Type S
    The Draw-Tite trailer hitch # 24755 is designed to fit all models, including the Type S, of the 2007 Acura TL. I have included a link to the installation instructions and a link to a video showing a typical installation for you. This hitch comes with a ball mount, pin, and clip. For a 1-7/8 inch ball use # 19256 and for a 2 inch ball use # 19258. For trailer wiring use # C56231. I have included links to the instructions and a video for the wiring as well.
    view full answer...
  • Trailer Clearance/Marker Lights Do Not Light Up But All Other Lights Work
    It sounds like there is some issue in the wiring or possibly a new ground location is needed for the affected lights. Inspect the wiring from the front to the back and look for any pinched or frayed wires and repair as needed. Make sure that the vehicle side and trailer side connectors are clean and free of corrosion inside and out. The main connector grounds should be attached to clean and corrosion free bare metal surfaces. The light grounds should also be attached to clean and corrosion...
    view full answer...
  • Picture Request for a 2006 Acura TL with a Hitch Installed
    I attached a couple pictures of an Acura TL that is the same generation as your 2006 Acura TL. I also attached installation instructions for this hitch for you to check out. If you plan on doing some light towing you may be interested in purchasing the following products to complete your towing setup: Curt Vehicle Wiring # C56231(Instructions attached) Hitch Ball with 1-7/8 inch Diameter and Medium Shank # A-80
    view full answer...
    Image 1 for Image 2 for
  • Troubleshooting Dim Trailer Lighting
    Most likely it's a ground issue. When we see trailer lights not being fully bright the issue is almost always an insufficient ground. I would recommend running a jumper ground wire from the light assemblies to the main ground of the trailer and you should see the lights start working like normal. I attached a help article on troubleshooting trailer wiring for you to check out as well.
    view full answer...

Do you have a question about this Custom Fit Vehicle Wiring?


Info for this part was:

Employee Lindsey S
Updated by:
Lindsey S
Employee Wilson B
Updated by:
Wilson B
Employee Kristina F
Updated by:
Kristina F
Employee Isabelle B
Updated by:
Isabelle B
Employee Michael H
Expert Research:
Michael H
Employee Laura H
Written by:
Laura H
Employee Steven C
Installed by:
Steven C

At etrailer.com we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.


Product Experts Available Now!
Call 1-800-940-8924