Troubleshooting 2017 Toyota Tacoma Sending Power Only to Trailer Right Side Tail Lights
Updated 05/18/2020 | Published 08/05/2017 >
Question:
2017 Toyota Tacoma 6 cyl double cab, 5 foot bed. We hooked a cargo trailer up to truck today for the first time and the truck is sending all the power to the right trailer light. I know its the truck because we hooked it up to a different trailer and it did the same thing. Even when the truck is off, the right back trailer light is on. Please help.
asked by: Corita
Expert Reply:
Since the issue appears to be on the vehicle side for your 2017 Toyota Tacoma, I recommend first checking the connector itself. Look to see if there is any dirt or corrosion built up inside the connector that may preventing a solid connection with the trailer harness. Also check the wires directly behind the connector for any damage.
Another possibility, especially if your Tacoma has the factory tow package, is a blown fuse. Check the fuses under the hood for any blown fuse that might be causing the issue with the left side of the trailer lights. If a replacement is needed, you can simply locate your local Toyota dealer or a local auto parts store for the correct fuse.
Product Page this Question was Asked From
Featured Help Information
Miscellaneous Media
Continue Researching
- Shop: Trailer Wiring
- Q&A: Troubleshooting Low Voltage At Vehicle Side Connector for Trailer Right Signal Lights
- Shop: Curt 4-Way Flat Trailer Connector with Circuit Protected Powered Tail Light Converter
- Q&A: Troubleshooting 4-Way Vehicle Wiring Harness Not Allowing Brake Lights to Work on 2003 Toyota Tacoma
- Shop: Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Q&A: Trailer Turn Signals Flash Very Dim and Show Inconsistent Voltage
- Q&A: Turn Signals on Trailer Not Working When Running Lights are On
- Shop: Power Mountain Tallboy Off-Road Bottle Jack - 8-1/2" to 37-3/4" Lift - 6 Tons
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Q&A: What is the Difference Between a Class II and a Class III Hitch?
- Shop: Trailer Hitch
- Video: Feature Breakdown: Universal Installation Kit for Trailer Brake Controller
- Search Results: trailer wiring
- Article: Trailer Wiring Diagrams
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Search Results: trailer hitch
- Shop: Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat - 10 Gauge Wires
- Video: How to Choose a Trailer Brake Controller
- Q&A: What is the Difference Between a 4-Way and 7-Way Trailer Connector
- Q&A: Lug Nut Torque Chart for Trailer Wheels
- Search Results: trailer tires and wheels
- Video: Firestone Ride-Rite Air Bags with Easy Mount Compressor Feature Breakdown
- Shop: etrailer Trailer Hitch Receiver - Custom Fit - Matte Black Finish - Class III - 2"
- Shop: Suspension Enhancement
- Article: How to Measure for Trailer Hitch Drop
- Shop: Brake Controller
- Search Results: trailer jack
- Shop: Redarc Tow-Pro Liberty Brake Controller w/ Universal Wiring Harness - Dash Knob - Proportional
- Search Results: brake controller
- Shop: Gooseneck Hitch



Mike I.
5/15/2020
How could a blown fuse result in a constant power issue?