CURT Dual-Output Electrical Adapter (Adds 7-Way RV Blade to 4-Way Flat) Trailer Wiring Adapter ConnectorCURTIn Stock
View productAsk a Question About This Product
Our in-house experts typically reply within one business day.
Our in-house experts typically reply within one business day.
CURT
Verify Fitment
Select your vehicle to confirm this part fits.
Always the correct part
We know our products
Quality Products
Free Shipping!
Always the correct part
We know our products
Quality Products
Free Shipping!
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 Toyota Yaris (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 |
|---|---|---|
| 2015 - 2020 | Toyota Yaris | Installation Time: 30-60 minutes |
On Sale Today
You save $7.96 (9%)
Free Shipping
Ships free on all orders
Authorized DealerQuick Ship
In stock and ready to ship — order now!
Shipping from Lancaster, TXFREE SHIPPING
Estimated delivery Mon, Sep 7 - Wed, Sep 9
Order before 2 PM EST Monday–Friday for same-day processing
Guaranteed safe & secure checkout
Yes, the CURT 56385 Vehicle-Side Custom 4-Pin Trailer Wiring Harness, Fits Select Toyota Yaris (Part #BKDK56385) is designed to fit the 2015-2020 Toyota Yaris.
The CURT 56385 Vehicle-Side Custom 4-Pin Trailer Wiring Harness, Fits Select Toyota Yaris (Part #BKDK56385) fits the following vehicles: 2015-2020 Toyota Yaris. Always verify your specific year, make, and model before ordering.
The CURT 56385 Vehicle-Side Custom 4-Pin Trailer Wiring Harness, Fits Select Toyota Yaris (Part #BKDK56385) fits 2015-2020 Toyota Yaris models. The 2020 model year is the last year covered by this part number. For newer models, check for an updated version.
The CURT 56385 Vehicle-Side Custom 4-Pin Trailer Wiring Harness, Fits Select Toyota Yaris (Part #BKDK56385) Typical installation time is 30-60 minutes. Basic hand tools are typically all you need.
The Curt 56385 is a custom wiring harness that integrates with your vehicle's taillight wiring to provide trailer lighting control. It includes a converter box that processes signals from your vehicle's taillights and outputs a 4-flat connector for trailer connection. The harness is designed for Toyota Yaris hatchback models.
Yes, the Curt 56385 is designed for Toyota Yaris hatchback models. The installation instructions specifically list this vehicle as a compatible application.
The manual only confirms compatibility with the Toyota Yaris hatchback. For other Toyota models or vehicle types, contact Curt Manufacturing or check the vehicle manufacturer's documentation to verify fitment.
You will need: ratchet, extension, 10mm socket, Phillips screwdriver, panel trim removal tool, wire stripper, wire crimper, and cutting tool. The manual also recommends having a test light or properly wired trailer available to test the harness after installation.
The harness includes: custom wiring harness ends with yellow and green wires, white ground wire with ring terminal, provided screw for grounding, black converter box with double-sided tape for mounting, 4-flat connector with dust cover, and cable ties for securing loose wires.
The manual provides step-by-step installation instructions for a DIYer with basic tools. However, if you are not comfortable working with vehicle electrical systems, trim removal, or drilling, professional installation is recommended. The manual does not specify whether professional installation is required.
The converter box is mounted on a flat spot inside the vehicle near the taillight using the provided double-sided tape. The exact location may vary depending on your vehicle's interior layout, but it should be positioned where it is secure and out of the way.
The custom wiring harness ends are inserted between the separated vehicle taillight connectors. The harness end with the yellow wire connects at the driver side taillight (location P3), and the harness end with the green wire connects at the passenger side taillight (location P4). The connectors must be fully inserted with locking tabs in place to ensure proper function.
The white ground wire provides a ground connection for the harness. It is secured using the provided ring terminal and screw to a suitable grounding point near the connector, such as an existing screw with nut in the vehicle frame. If no suitable point exists, you may drill a 3/32" pilot hole for the provided screw. The area must be free of rust, dirt and paint.
Route the harness end with the green wire down behind the interior side trim panel and out to the passenger side behind the removed scuff panel. The black power wire from the vehicle battery should be routed as shown on the included CME-PCL-INS sheet. The 4-flat connector should be routed to the center of the vehicle and out of the trunk when in use, and rolled up and stored inside the trunk when not in use.
Drilling may be required if a suitable grounding point does not already exist near the taillight connector. In that case, you may drill a 3/32" pilot hole for the provided grounding screw. Before drilling, check for miscellaneous items that may be hidden behind or under any surface to avoid damage and personal injury.
The pilot hole size is 3/32" (approximately 2.4 mm). This hole is drilled only if a suitable existing grounding point is not available near the taillight connector.
The harness is rated for signal circuits at 3.0 amps per side and tail/running circuits at 6.0 amps total. The battery connection must be fuse-protected with a 10-amp maximum fuse. Do not exceed the product rating or the tow vehicle lamp load rating, whichever is lower, as exceeding the rating can cause loss of warranty, overheating and potential fire.
The battery connection must be fuse-protected with a 10-amp maximum fuse. This is a critical safety requirement; exceeding this rating can cause loss of warranty, overheating and potential fire.
Before drilling, check for miscellaneous items that may be hidden behind or under any surface to avoid damage and personal injury. Take care not to damage the alignment tabs on the scuff panel and interior side trim panels, or the locking tabs on the taillight connectors. Do not exceed the product rating or tow vehicle lamp load rating, whichever is lower.
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 before relying on it for trailer operation.
Reinstall all items removed during installation, including trunk floor coverings, storage trays, scuff panel, and interior side trim panels. Install the provided 4-flat dust cover to help prevent corrosion. Secure any loose wires with the provided cable ties. Finally, test the harness for proper function using a test light or properly wired trailer.
The Curt 56385 is designed for Toyota Yaris hatchback models only. For other vehicles, contact Curt Manufacturing or your vehicle manufacturer.
The battery connection must be fuse-protected with a 10-amp maximum fuse. Do not exceed this rating as it can cause overheating and fire.
Do not exceed the product rating or tow vehicle lamp load rating, whichever is lower. Exceeding the rating can cause loss of warranty, overheating and potential fire.
Total for 4 items:
$152.94$160.90
No reviews have been added for this product.