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| Battery-Powered | Yes |
| Converter Type | Circuit Protected, Powered, Potted |
| Electrical System Type | 3W |
| Finish | N/A |
| Material | Blank |
| Mount Type Description | Not Applicable |
| Output Type | 4-Way Flat |
| Side Application Type Description | Not Applicable |
| T-Connector Location | P3,P4 |
| Tail Light Circuits | 6.0 Amps |
| Turn and Brake Circuits | 3.0 Amps |
| Warranty | One-Year Limited Warranty |

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 |
|---|---|---|
| 2020 - 2024 | Toyota Corolla | Sedan, excluding AWD |
The 20-24 Toyota Corolla Sedan, excluding AWD CURT 4-flat Plug and Play Trailer Wiring (Part #CTW2374) fits the following vehicles: 2020-2024 Toyota Corolla. Always verify your specific year, make, and model before ordering.
The 20-24 Toyota Corolla Sedan, excluding AWD CURT 4-flat Plug and Play Trailer Wiring (Part #CTW2374) fits 2020-2024 Toyota Corolla models. The 2024 model year is the last year covered by this part number. For newer models, check for an updated version.
Yes, the 20-24 Toyota Corolla Sedan, excluding AWD CURT 4-flat Plug and Play Trailer Wiring (Part #CTW2374) is designed to fit the 2020-2024 Toyota Corolla.
The 20-24 Toyota Corolla Sedan, excluding AWD CURT 4-flat Plug and Play Trailer Wiring (Part #CTW2374) Refer to the included instructions for installation details. Basic hand tools are typically all you need.
The Curt 56454 is a powered converter system designed for SUVs and vans. It converts vehicle lighting signals (turn, brake, and tail lights) to a 4-flat trailer connector format. The system includes a converter box, wiring harness with color-coded leads (yellow for left turn, green for right turn, red for brake, brown for tail light), and a powered converter lead that connects to the vehicle battery.
The Curt 56454 is designed for SUVs and Vans (S-series vehicles). The manual does not specify individual makes, model years, or body styles. Consult the product fitment database or contact Curt Manufacturing to confirm compatibility with your specific vehicle.
Yes. The converter system is designed only for 12-volt negative ground systems. Do not use on any other electrical system configuration.
Required tools are: ratchet, cutting tool, panel trim removal tool, wire crimper, electrical tape, and wire stripper. Proper tools will improve installation quality and reduce installation time.
The kit includes: a converter box, color-coded wiring harness (yellow, green, red, brown leads), powered converter lead with 12 GA wire, double-sided tape for mounting the converter box, cable ties for securing loose wires, a 4-flat dust cover, a fuse holder with 10-amp fuse, a ring terminal for the white ground wire, a screw for ground wire attachment, and butt connectors.
Yes. Disconnect the negative battery terminal in the engine compartment on the driver side before beginning installation. Fasten this wire down and away from the battery while completing the installation. Reconnect it only after all other steps are complete and the fuse is installed.
Remove the floor coverings, skid plate (secured by two push fasteners), and trunk liner (secured by three small push fasteners in the sidewall and one in the floor). Repeat the trunk liner removal on both sides of the vehicle. You will also need to pull back the sidewall panels to access the taillight housings.
On the driver side, locate the taillight housing and separate the connectors carefully without damaging the locking tabs. Install the yellow wire between the separated connectors, then fully insert the connectors with locking tabs in place. Repeat on the passenger side with the green wire. Route the green wire along the back of the trunk below the skid plate to reach the passenger side.
Locate a flat spot on the vehicle on the driver side and adhere the black converter box using the provided double-sided tape.
When in use, route the 4-flat to the center of the vehicle. When not in use, roll it up and store in a convenient, out-of-the-way location. Secure any loose wires with the provided cable ties. Install the provided 4-flat dust cover to help prevent corrosion.
Yellow wire = left turn signal; Green wire = right turn signal; Red wire = brake signal; Brown wire = tail light/running light. These color-coded leads connect to the converter box and ultimately to the 4-flat trailer connector.
The power wire is 12 GA (12 gauge) or larger. This wire routes from the vehicle battery to the converter system and must be protected by a 10-amp maximum fuse.
Route the 12 GA black power wire from the vehicle battery location, taking care to avoid pinch points and hot or rotating components. Use a ring terminal for the battery connection. Connect the ring terminal to the positive (+) battery terminal. The white ground wire ring terminal should be attached to the vehicle body using the provided screw (drill a 3/32" hole if necessary). Install the fuse holder with 10-amp fuse after all other steps are complete.
When passing the 12 GA power wire through sheet metal, use an existing grommet, add a new grommet, or use silicone to protect the power wire from sharp edges.
The maximum fuse rating is 10 amps. 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. Install the fuse after all other installation steps are complete.
Signal circuits (turn signals): 3.0 amps per side. Tail/Running circuits: 6.0 amps total. Do not exceed the product rating or the tow vehicle lamp load rating, whichever is lower.
If necessary, drill a 3/32" hole to attach the white ground wire ring terminal to the vehicle body using the provided screw.
Before drilling, check for miscellaneous items that may be behind or under any surface. This prevents personal injury or property damage.
After connecting the 12-volt power wire to the harness, verify that the harness is functioning by attaching the battery and testing with a test light, 4-flat tester, or a functioning trailer. This should be done before considering the installation complete.
Perform periodic inspection of all wires and connections to ensure there is no visible damage or loose connections. This helps maintain proper function and prevent electrical issues.
The Curt 56454 is designed for SUVs and Vans (S-series). Confirm your specific vehicle make, model, and year with the product fitment database or contact Curt Manufacturing.
You need: ratchet, cutting tool, panel trim removal tool, wire crimper, electrical tape, and wire stripper.
Yes. Disconnect the negative battery terminal before starting installation and reconnect it only after all steps are complete and the fuse is installed.
Periodically inspect all wires and connections for visible damage or loose connections.



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