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Vehicle battery connection required
Includes fuse holder, battery connection wiring and other necessary wiring components
Includes fuse holder, battery connection wiring and other necessary wiring components
Warranty: One-Year Limited Warranty
Electrical System Type: 3W
Output Type: 4-Way Flat
Tail Light Circuits: 6.0 Amps
Turn and Brake Circuits: 3.0 Amps
Installation Difficulty: Professional
Installation Time Exact (Minutes): 45
If your vehicle is not equipped with wiring for towing a trailer, CURT custom wiring is the ideal solution. A custom wiring harness -- also called a T-connector -- is a simple, plug-and-play electrical device that plugs into your automotive electric system and provides a standard, universal trailer wiring connection. This is done using two or more vehicle-specific, OEM-compatible connectors to plug into the taillight assembly, eliminating the need for cutting, splicing and soldering during installation. Custom wiring harnesses are made vehicle-specific, and while they are not available for all vehicles, they do offer one of the fastest, easiest and most secure ways to wire a vehicle for towing. This particular plug-in harness provides a 4-way flat connector socket and is designed to be a custom wiring harness to fit certain years of the Hyundai Elantra sedan Limited (to verify your vehicle compatibility, see application info). It comes with all necessary wiring components to establish a reliable trailer wiring connection, as well as a dust cover to keep the connector clean when not in use. You have a picture in mind of your next destination -- maybe it's the boat landing at your favorite fishing spot, maybe it's a campsite that overlooks one of nature's masterpieces, or maybe it's the next big jobsite. However, turning that picture into a reality takes more than just daydreaming. It takes a solid connection and the right amount of power. CURT custom wiring is made with some of the most sophisticated technology in the industry and is designed to install with ease, giving you a long-lasting electrical connection for your towing hitch setup.
CURT offers a variety of high-quality trailer hitches and accessories for select vehicle models. Find the perfect fit for your towing needs at TowUniverse.
CURT, a Lippert brand, offers a complete line of towing products and is the leading manufacturer of custom-fit trailer hitches. We offer the broadest selection of custom-fit hitches, and each one is designed, welded, and coated in Wisconsin.
CURT is also a leader in flat towing products, as well as 5th wheel, gooseneck, and weight distribution hitches, ball mounts, electrical components, cargo solutions, and other towing accessories.
For everything from passenger cars and vans to full-size pickups and SUVs, CURT is 'The First Name in Towing Products®.'
Experts available to answer your questions
Call 888-634-94941 compatible vehicles
| Year | Make & Model | Notes |
|---|---|---|
| 2017 - 2018 | Hyundai Elantra | Installation Time: 30-60 minutes |
The CURT 56316 Vehicle-Side Custom 4-Pin Trailer Wiring Harness, Fits Select Hyundai Elantra Sedan Limited (Part #BKDK56316) fits 2017-2018 Hyundai Elantra models. The 2018 model year is the last year covered by this part number. For newer models, check for an updated version.
Yes, the CURT 56316 Vehicle-Side Custom 4-Pin Trailer Wiring Harness, Fits Select Hyundai Elantra Sedan Limited (Part #BKDK56316) is designed to fit the 2017-2018 Hyundai Elantra.
The CURT 56316 Vehicle-Side Custom 4-Pin Trailer Wiring Harness, Fits Select Hyundai Elantra Sedan Limited (Part #BKDK56316) fits the following vehicles: 2017-2018 Hyundai Elantra. Always verify your specific year, make, and model before ordering.
The CURT 56316 Vehicle-Side Custom 4-Pin Trailer Wiring Harness, Fits Select Hyundai Elantra Sedan Limited (Part #BKDK56316) Typical installation time is 30-60 minutes. Basic hand tools are typically all you need.
The Curt 56316 Custom Wiring Harness is designed for the Hyundai Elantra sedan (limited trim only). If your vehicle is a different trim level, body style, or model year, this harness may not be compatible. Check your vehicle's trim designation before purchasing.
The Curt 56316 fits Hyundai Elantra sedan (limited trim only). It is not compatible with other trim levels or body styles.
The Curt 56316 is a Custom Wiring Harness that provides trailer lighting connections for your vehicle. It includes a converter box and a 4-flat connector for attaching a trailer. The harness handles signal circuits (3.0 amps per side) and tail/running circuits (6.0 amps total).
You will need: a ratchet, 10mm socket, panel trim removal tool, wire stripper, wire crimper, and cutting tool. These tools are required to remove panels, disconnect connectors, prepare wires, and secure the installation.
The harness includes: custom wiring harness ends (yellow and green wire), white ground wire with ring terminal, black converter box, provided screw for grounding, double-sided tape, 4-flat connector, 4-flat dust cover, and cable ties.
Yes. You must disconnect the negative battery terminal before beginning installation. This is a required safety step to prevent electrical hazards during the wiring work.
The manual does not specify whether professional installation is required. The installation involves panel removal, wiring, drilling, and electrical connections. If you are not comfortable with these tasks, consult a professional installer.
Yes. You must drill a 3/32" pilot hole in the vehicle frame to secure the white ground wire using the provided screw. The drilling location should be a flat spot near the taillight, free of rust, dirt, and paint. You may also use an existing screw with nut in the vehicle frame if one is available nearby.
Drill a 3/32" pilot hole in the vehicle frame near the taillight connector. The area must be free of rust, dirt, and paint. Alternatively, you can use an existing screw with nut in the vehicle frame if one is suitable and nearby.
The battery connection must be fuse-protected with a 10-amp maximum fuse. Exceeding this rating can cause loss of warranty, overheating, and potential fire. Do not exceed the product rating or the tow vehicle lamp load rating, whichever is lower.
The battery connection must use a 10-amp maximum fuse. Exceeding this rating can cause overheating and fire.
The harness has three main wires: yellow wire (driver side taillight connection), green wire (passenger side taillight connection), and white wire (ground connection). The black converter box connects to the vehicle battery via a black power wire. Route the 4-flat connector to the center of the vehicle when in use, and store it out of the way when not in use.
The white ground wire connects to the vehicle frame using the provided ring terminal and screw. Locate a suitable grounding point near the taillight connector, such as an existing screw with nut in the vehicle frame, or drill a 3/32" pilot hole. The area must be free of rust, dirt, and paint.
The black converter box should be mounted on a flat spot inside the vehicle near the taillight using the provided double-sided tape. This location keeps the converter box secure and out of the way during normal vehicle operation.
When not in use, roll up the 4-flat connector and store it in a convenient, out-of-the-way location inside the vehicle. When in use, route it to the center of the vehicle. Secure any loose wires with the provided cable ties to prevent tangling and damage.
1. Disconnect the negative battery terminal. 2. Remove trunk floor coverings and rear scuff panel. 3. Remove side felt liner push fasteners on the driver side. 4. Locate and separate the vehicle taillight connectors. 5. Insert the harness end with yellow wire between the connectors. 6. Secure the white ground wire to the vehicle frame. 7. Route the harness end with green wire to the passenger side and repeat steps 3–5. 8. Mount the black converter box with double-sided tape. 9. Route the black power wire from the battery (see included CME-PCL-INS sheet). 10. Route and secure the 4-flat connector. 11. Reinstall all removed items and reconnect the battery. 12. Install the 4-flat dust cover.
Locate the vehicle taillight wiring harness connectors behind the taillight housing inside the trunk. Separate the connectors from the taillight housing, taking care not to damage the locking tabs. Insert the custom wiring harness end (yellow wire for driver side, green wire for passenger side) between the separated connectors. Make sure the connectors are fully inserted with locking tabs in place.
You must remove: all trunk floor coverings, the rear scuff panel (by pulling out on the bottom and then up), and the side felt liner push fasteners on both the driver and passenger sides. Take care not to damage the alignment tabs on the back of the scuff panel or the locking tabs on the connectors.
After installation, test for proper function by using a test light or connecting a properly wired trailer. All steps must be followed to ensure the wiring harness functions properly. The manual does not provide detailed testing procedures beyond these methods.
After installation: 1. Reconnect the negative battery terminal. 2. Install the provided 4-flat dust cover to help prevent corrosion. 3. Test for proper function using a test light or by connecting a properly wired trailer. 4. Ensure all panels are reinstalled and all loose wires are secured with cable ties.
Before drilling the 3/32" pilot hole for the ground wire, check for miscellaneous items that may be hidden behind or under any surface to avoid damage and personal injury. The drilling area should be free of rust, dirt, and paint.
Signal circuits are rated for 3.0 amps per side. Tail and running circuits are rated for 6.0 amps total. Do not exceed these product ratings or the tow vehicle lamp load rating, whichever is lower. Exceeding the rating can cause loss of warranty, overheating, and potential fire.
Signal circuits: 3.0 amps per side. Tail/running circuits: 6.0 amps total. Do not exceed these ratings or the vehicle's lamp load rating.
Verify that all installation steps have been completed correctly. Check that: 1. The negative battery terminal is reconnected. 2. The harness ends (yellow and green wires) are fully inserted into the taillight connectors with locking tabs in place. 3. The white ground wire is securely fastened to the vehicle frame. 4. The black converter box is properly mounted and the black power wire is correctly routed from the battery. 5. All connectors are fully seated and undamaged. Test using a test light or properly wired trailer. If the issue persists, consult the vehicle owner's manual or contact the vehicle manufacturer.
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