Correct Replacement 4-Way Wiring Harness for 2017 Toyota Highlander XLE With Factory Tow Package
Updated 10/24/2022 | Published 10/22/2022
Products Featured in This Question
Question:
I recently purchased a 2017 Highlander XLE used. It already has a trailer hitch, but the trailer wiring is defective. Per Toyota, all XLE trim models of the 2017 Highlander came with a towing package. Therefore, it would theoretically not need a converter box Curt part # C56217. But, there is a defective converter box in the rear cargo area. Is there a connection the 10 pin connector I believe for installing a Curt converter box in a Highlander that came with a towing package? If not, then my car did not come with a towing package after all. But, if all the 2017 Highlanders have a 10 pin connector, does using a converter box provide a level of protection to the cars wiring / electrical system that you dont get by just plugging in a new 4 way harness to the cars plug?
asked by: Phillip H
Expert Reply:
A 2017 Toyota Highlander without the tow package has the same 10 pin connection you have on your XLE. The difference is whether or not it comes with the converter installed. Typically you would need the # 56042 since it does not come with the converter.
You said your converter is bad so you can use the # C56217 for a replacement since it comes with the wiring harness and converter box. The converter does protect the wiring by reducing power draw. It also combines the brake and turn signal functions of your automobile so that they run on one wire to properly activate your trailer's tail lights.
Product Page this Question was Asked From
Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Custom Fit Vehicle Wiring
- Trailer Hitch Wiring
- Vehicle End Connector
- Powered Converter
- No Tow Package
- 4 Flat
- Plug and Lead
- Plug-In
- Hidden
- CURT
more information >
Featured Help Information
Instructions
Miscellaneous Media
Continue Researching
- Shop: Trailer Wiring
- Shop: Curt Auxiliary LED Indicator Lights
- Video: Curt T-Connector Vehicle Wiring Harness Installation - 2019 Toyota Highlander C56217
- Shop: Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Shop: Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Shop: Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector
- Shop: Hollywood Racks Safety LED Light Bar for Bike Racks
- Shop: Trailer Hitch
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Video: How to Choose a Trailer Brake Controller
- Shop: Curt Powered Tail Light Converter with 4-Pole Flat Trailer Connector
- Q&A: What is the Difference Between a Class II and a Class III Hitch?
- Search Results: trailer hitch
- Shop: Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat - 10 Gauge Wires
- Q&A: What is the Difference Between a 4-Way and 7-Way Trailer Connector
- Article: Trailer Wiring Diagrams
- Search Results: trailer wiring
- Shop: Suspension Enhancement
- Video: Curt T-Connector Vehicle Wiring Harness Review C56040
- Search Results: trailer tires and wheels
- Article: How to Measure for Trailer Hitch Drop
- Q&A: Lug Nut Torque Chart for Trailer Wheels
- Q&A: Installation Time for Blue Ox BX1128 Flat Tow Base Plate Kit for 2016 Jeep Grand Cherokee
- Search Results: trailer jack
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Video: The Low-Down on the Curt Powered Tail Light Converter with 4-Pole Flat Trailer Connector
- Shop: Brake Controller
- Shop: Gooseneck Hitch
- Video: Clean Up Your Trailer Wiring
- Q&A: What Is An OEM Prep Package And How Do I Know If I Have It
on Custom Fit Vehicle Wiring
