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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 Nissan Quest (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 888-634-9494Rediscover "Us" Time | Tested. Proven. Safe. Towing Products
1 compatible vehicles
| Year | Make & Model | Notes |
|---|---|---|
| 2011 - 2017 | Nissan Quest | Installation Time: 30-60 minutes |
Yes, the Curt 56342 Custom Wiring Harness is designed for Nissan Quest SUVs, mini and full-sized vans. The installation instructions confirm this application.
The Curt 56342 is a custom wiring harness that provides trailer lighting connections for your Nissan Quest. It connects to the vehicle's taillight assemblies and includes a converter box to manage signal and tail/running lamp circuits for trailer operation.
You will need: ratchet, 10mm socket, socket extension, flat blade screwdriver, panel trim removal tool, wire stripper, wire crimper, cutting tool, and fish wire. The manual also references an included CME-PCL-INS sheet for battery connection routing.
The manual does not explicitly state whether to disconnect the battery before beginning installation. However, Step 10 instructs you to reconnect the negative battery terminal at the end of the installation, which implies it should be disconnected first. Consult your vehicle owner's manual or the manufacturer for specific guidance on battery disconnection procedures.
Open the vehicle tailgate and remove the two 10mm bolts holding each taillight assembly in place. Remove both taillights carefully to avoid damaging the alignment tabs. You will reinstall them after routing the wiring harness.
Route the custom wiring harness with the yellow wire along the rear bumper and up behind the fender to the opening underneath the removed driver-side taillight. The harness end with the yellow wire connects at the driver side (S1). Route the harness end with the green wire to the passenger side (S2) along the rear bumper. Use fish wire to help guide the harness. The 4-flat connector should be routed to the center of the vehicle when in use, and rolled up and stored out of the way when not in use.
Locate the vehicle taillight wiring harness connectors (they will be similar to those on the custom harness). Separate the connectors from the taillight housing carefully to avoid damaging 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, then reinstall the taillight.
Mount the black converter box in a flat, clean surface that is out of the path of spray and debris from the rear wheels and road. Use the provided double-sided tape and cable ties to secure it. Failure to mount the box in a protected area can cause loss of warranty, product failure, overheating and potential fire.
Drilling may be required for the ground wire connection. If a suitable grounding point (such as an existing screw with nut in the vehicle frame) is not available near the connector, you will need to drill a 3/32" pilot hole for the provided screw. Before drilling, check for miscellaneous items that may be hidden behind or under any surface to avoid damage and personal injury.
Signal circuits are rated at 3.0 amps per side. Tail and running circuits are rated 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.
The harness includes: yellow wire (routes to driver-side taillight, S1), green wire (routes to passenger-side taillight, S2), white wire (ground wire with ring terminal), and black wire (power wire from vehicle battery). The 4-flat connector is routed to the center of the vehicle when in use.
Locate a suitable grounding point near the connector, such as an existing screw with nut in the vehicle frame. The area should be free of rust, dirt and paint. If no suitable point exists, drill a 3/32" pilot hole for the provided screw. Secure the white ground wire using the ring terminal and the provided screw. Before drilling, check for hidden items to avoid damage and personal injury.
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.
Do not exceed the product rating or the tow vehicle lamp load rating, whichever is lower. The manual does not specify a maximum towing or lamp load capacity; consult your vehicle owner's manual or contact the vehicle manufacturer for this information.
Once installed, 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 will function properly.
Reinstall all items removed during installation, reconnect the negative battery terminal, and install the provided 4-flat dust cover to help prevent corrosion. Secure any loose wires with the provided cable ties. Test for proper function using a test light or by connecting a properly wired trailer.
The Curt 56342 includes: custom wiring harness with yellow, green, white and black wires, black converter box, ring terminal for ground wire, provided screw for grounding, double-sided tape and cable ties for mounting the converter box, 4-flat dust cover, and a reference to an included CME-PCL-INS sheet for battery power routing.
Yes, the Curt 56342 Custom Wiring Harness is designed for Nissan Quest SUVs, mini and full-sized vans.
Drilling may be required if no suitable grounding point exists near the connector. You may need to drill a 3/32" pilot hole for the provided ground screw.
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.
Yellow wire (driver-side taillight), green wire (passenger-side taillight), white wire (ground), and black wire (battery power).
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