Troubleshooting Hopkins 4-Way Wiring Harness on 2019 Toyota Highlander
Question:
I have a wiring harness for a 2019 highlander. Does not work. I have power to the factory plug ,nothing out of the harness to the trailer connector. fuse is fine. Suggestions before I send it back. Thanks
asked by: Andy P
Expert Reply:
Since you have already established that the fuse is fine and power is running to the connection for the harness there is not much else that can be done. I suggest double checking all of the connections to make sure they are secure. I would unplug each one and plug it back in to make sure they are fully seated. If that does not solve the problem, it is more than likely a bad wiring harness.
If you are planning to replace it, I recommend the Tekonsha T-One Vehicle Wiring Harness # 118449 instead of the Hopkins. We have found Tekonsha to be the most reliable when it comes to wiring. This basically has the same installation process, so it will be quick and easy.
I have attached the installation video for the Hopkins if you would like to review the process, as well as the Tekonsha for your reference.
Products Referenced in This Question
T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Custom Fit Vehicle Wiring
- Trailer Hitch Wiring
- Converter
- Custom Fit
- 4 Flat
- Tekonsha
more information >
Product Page this Question was Asked From
Hopkins Plug-In Simple Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Custom Fit Vehicle Wiring
- Trailer Hitch Wiring
- Powered Converter
- Custom Fit
- 4 Flat
- Hopkins
more information >
Featured Help Information
Instructions
Miscellaneous Media
Continue Researching
- Shop: Trailer Wiring
- Shop: Brake Controller
- Shop: Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat - 10 Gauge Wires
- Shop: T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Shop: Tekonsha OEM Replacement Vehicle Wiring Harness w Brake Controller Adapter - 7 Way Trailer Connector
- Q&A: No Lights On 2017 Toyota Highlander After Installing Hopkins Plug-In Wiring Harness for Factory Tow
- Q&A: Recommended Complete Towing Setup for 2017 Toyota Highlander SLE AWD for 3,850 lb Trailer
- Video: Redarc Tow-Pro Liberty Brake Controller Installation - 2019 Toyota Highlander
- Shop: Redarc Tow-Pro Liberty Brake Controller - Dash Knob - 1 to 2 Axles - Proportional
- Video: Best 2017 Toyota Highlander Trailer Wiring Options
- Video: Tekonsha Prodigy P3 Trailer Brake Controller Installation - 2017 Toyota Highlander
- Shop: Tekonsha Prodigy P3 Trailer Brake Controller - 1 to 4 Axles - Proportional
- Q&A: How to Determine if 2008 Toyota Highlander is Equipped with Factory Taillight Converter
- Shop: Hopkins Plug-In Simple Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector
- Video: Trailer Wiring Harness Installation - 2017 Toyota Highlander hm11141845
- Q&A: Recommended Trailer Hitch and Trailer Wiring Harness for 2018 Toyota Highlander
- Q&A: Recommended Trailer Wiring For 2017 Toyota Highlander To Tow Camper With 7-Way Connector
- Q&A: Checking Tow Light Wiring Fuse on 2020 Toyota Highlander
- Q&A: 4-Way Trailer Wiring Harness Recommendation for 2018 Toyota Highlander with Tow Package
- Video: Hopkins Custom Fit Vehicle Wiring - Trailer Hitch Wiring - HM11141845 Review
- Shop: Curt Echo Wireless Brake Controller - 7-Way Plug Mount w/ Bluetooth App - 1 to 2 Axle - Proportional
- Video: Tekonsha OEM Replacement Vehicle Wiring Harness Installation - 2018 Toyota Highlander
- Article: What Exactly is Tongue Weight?
- Video: Choosing the Right Trailer Wiring
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Shop: Trailer Hitch
- Search Results: brake controller
- Search Results: trailer brake controller
- Article: Trailer Wiring Diagrams
- Search Results: 90160
on Custom Fit Vehicle Wiring
