JavaScript seems to be disabled in your browser. For the best experience on our site, be sure to turn on Javascript in your browser. Any vehicle hookup a trailer requires a trailer wiring harness to safely connect the taillights, turn signals, brake lights and other necessary electrical systems. If your vehicle is not equipped with working trailer wiring, there are a number of different solutions to provide the perfect fit for your specific vehicle.
Complete with a color coded trailer wiring diagram of each plug typethis guide walks through each available solution, including custom wiring, splice-in wiring and replacement wiring.
If you're looking to replace the wiring on your trailer, check out our trailer rewiring guide. Custom wiring. Vehicle-specific plug-and-play harness that requires no splicing and provides a standard trailer for. Splice-in wiring. Taillight converter that splices into your existing vehicle wiring and provides a standard trailer connector. Replacement plugs and sockets. Custom wiring is the ideal solution for installing trailer light wiring on your vehicle. A custom wiring harness or 'T-connector' is a vehicle-specific harness that plugs in without any spicing learn more here and provides a standard connector output, such as a 4-way flat.
All CURT custom wiring comes with the exact electrical needed for a electrical installation on the vehicle, including vehicle-specific plugs and an electrical converter, if needed. A custom wiring harness has multiple plugs that are used to 'T' into the vehicle's taillight assembly, drawing power directly from the taillights or from a direct battery connection and providing a standard trailer light wiring connector.
While custom wiring harnesses usually require two or more connection points, splicing and soldering are still not needed. While some vehicles may not be equipped with a standard trailer wiring for, they may have a special socket specifically intended for installing wiring, provided by the vehicle manufacturer.
A trailer wiring connector uses a single plug to plug into this factory socket and provide a standard trailer wiring connector. Like a T-connector, an original equipment wiring harness plugs into the USCAR socket without any cutting, splicing or soldering required, and it provides a standard trailer wiring output, such as a 4-way flat or 7-way RV blade.
If custom wiring is not available for your particular make and model, a taillight converter may be required to equip your vehicle with the proper trailer light wiring connection. A taillight converter or electrical converter splices into your vehicle and hookup a standard trailer plug wiring connector, typically a 4-way flat.
The converter converts the vehicle's complex wiring system to be compatible with your trailer's simple wiring system. To learn more about vehicle wiring systems, electrical out our vehicle wiring systems guide.
If the trailer plug wiring on your vehicle or trailer is damaged or not working correctly, you can replace the connector with a CURT splice-in plug or socket.
How to Hook Up Trailer Lights — Trailer Wiring Tips & Tricks
Plugs trailer side and sockets vehicle side are available in all standard formats and can be spliced into your existing trailer plug wiring. Find the trailer light wiring diagram below that corresponds to your modern polygamy dating site configuration.
If you are rewiring your trailer completely, check out our trailer rewiring guide. Following the standard method for wiring a trailer connector is vital to the safety of your vehicle while towing.
Connecting the wrong color wires will result in mismatched taillight functions and confusion on the road. Note: The ground wire color for for 4-flat plug is white and should be properly grounded at the trailer tongue. Read the complete rewiring guide for more.
The 7-way round trailer plug is to be distinguished from 7-way RV blade plugs. The wiring connections and placement hookup different. The SAE configuration of a 7-way RV blade plug should not be confused with the traditional configuration.
Different wire colors are used for different functions. Note: Not all trailers are equipped with reverse lights yellow wire.
First, Make Sure You Have All the Essential Parts Needed for a Working Trailer Light System
The position of this wire may vary for your own specific setup. Note: The ground wire trailer on all trailer plug types is always white. Other colors vary in function, depending on the configuration. Download complete table.
The traditional 7-way RV blade format is typically used on 5th wheel trailers, travel trailers and trailer. The trailer wiring colors for this configuration are different than those on the SAE configuration. The SAE J 7-way RV blade format is typically used on gooseneck trailers, utility trailers, cargo trailers and equipment trailers.
Trailers are equipped with different electrical types based on their electrical components. The chart below provides examples of common trailers and the types of plugs they typically use.
Learn more about different trailer types here. Refer trailer the wiring diagrams above for functions of trailer wiring colors. Discover more great tips and how-tos on the Lippert blog -- your destination for all things RVing, towing, boating and beyond!
4-Pin Flat Connector
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Equipping Your Vehicle with Proper Trailer Wiring Any vehicle towing a trailer requires a trailer wiring harness to safely connect the taillights, turn signals, brake lights and other necessary electrical systems.
View Trailer Wiring Diagrams Here! Custom wiring Vehicle-specific plug-and-play harness that requires no splicing and provides a standard trailer connector. Splice-in wiring Taillight converter that splices into your existing vehicle wiring and provides a standard trailer connector.
Replacement plugs and sockets Trailer plugs and vehicle sockets to trailer in and replace damaged wiring connectors. Option A: Custom Wiring Installation Custom wiring is the ideal solution for installing trailer light wiring on your vehicle. Custom Wiring Harnesses A custom wiring harness has multiple plugs that are used to 'T' into the vehicle's taillight assembly, drawing power directly from the taillights or from a direct battery connection and providing a standard trailer light wiring connector.
Custom Wiring Connectors While some vehicles may not be equipped with a standard trailer wiring connector, they may have hookup special socket specifically intended for installing wiring, provided by the vehicle manufacturer. Find Custom Wiring.
Trailer Wiring Diagram and Installation Help
Option B: Taillight Converter Show fashion onlyfans creators Wiring If custom wiring is not available for your particular for and model, a taillight converter may be required to equip trailer vehicle with the proper trailer light wiring connection. Shop Splice-in Converters.
Option C: Replacement Vehicle and Trailer Plug Wiring If the trailer plug wiring on your vehicle or trailer is damaged or not working correctly, you can replace the connector with a CURT splice-in plug or socket. Use this 4-pin wiring diagram to properly wire your electrical trailer plug. Not all trailers have reverse lights, so consider your own trailer for you wire in a 5-way plug. Be sure hookup review your own trailer connector before wiring. Review your own trailer before wiring.
Use this 7-pin trailer wiring diagram to properly wire your 7-pin trailer plug. Differences in 7-Pin Trailer Wiring Traditional configuration The traditional 7-way RV check this out format is typically used on 5th wheel trailers, travel trailers and campers.
Find Wiring for My Vehicle. Trailer Type Common Connector Type Alternative Connector Types Utility trailer 4-way flat 6-way round 7-way RV blade Boat trailer without surge electrical 4-way flat 7-way RV blade rarely used Boat trailer with hookup brakes 5-way flat 6-way round 7-way RV blade Pop up camper 6-way square 6-way round Travel trailer 7-way RV blade 6-way round 7-way round 5th trailer trailer 7-way RV blade 6-way round Gooseneck trailer 6-way round hookup RV blade Learn more local hookups app different trailer types here.
Chapter 1: Intro - Where do I start? Chapter 2: What do I need for towing? Chapter 3: What types of hitches are there? Chapter 4: What's my towing capacity? Chapter 5: How electrical I select a hitch? Chapter 6: How do I install a hitch? Chapter 7: How do I install trailer wiring?
Chapter 8: How do I use a brake controller? Chapter 9: How do I hook up my trailer? Chapter What do I need to dinghy tow? Trailer Type. Common Connector Type. Alternative Connector Types. Utility trailer. Boat trailer without surge brakes. Boat trailer with surge brakes. Pop up camper. Travel trailer. Gooseneck trailer.