Troubleshooting Tekonsha T-One Wiring Harness on 2018 Chevy Equinox
Question:
Was going to use my trailer yesterday, lights did not work. 2018 equinox with out towing package. Im sure purchased from you last early last summer, only place I could find it. I started testing at the car working towards the trailer. Test light power at the battery, power on black box side of wire splice. I can clamp on the ground to test the output plug. sometimes I can get a flash with the turnlights, some times flashes a couple time then nothing, sometimes nothing. No tail lights. My opinion there is something wrong with black box. Help, is there a warranty?
asked by: Larry W
Helpful Expert Reply:
The T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # 118750 for your 2018 Chevy Equinox has a 1 year manufacturer warranty. Because it seems to work part of the time, it sounds like there is a connection issue. I recommend starting with the ground wire with the ring terminal. Make sure the area it is connected to is free of debris and has a bare metal to metal connection.
Next, check each of the connectors to ensure a solid fit without any bent pins. If all that checks out, then check your power wire with your circuit tester to make sure you are getting consistent uninterrupted power. It could be a simple fix like a fuse going bad, or it may be a short in the wire, or a converter issue as you stated. You will need to troubleshoot all of the possibilities.
Product Page this Question was Asked From
T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Custom Fit Vehicle Wiring
- Trailer Hitch Wiring
- Powered Converter
- Custom Fit
- 4 Flat
- Tekonsha
more information >
Featured Help Information
Instructions
Miscellaneous Media
Continue Researching
- Shop: T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Shop: Trailer Wiring
- Video: Tekonsha T-One Vehicle Wiring Harness Installation - 2018 Chevrolet Equinox 118750
- Article: Routing the Power Wire for a Trailer Wiring Harness
- Q&A: Running Battery Lead Wire for Tekonsha Trailer Wiring that Fits 2020 Chevy Equinox
- Q&A: Which Trailer Wiring Harness is Correct for a 2018 Chevrolet Equinox LT
- Q&A: Correct Trailer Wiring Harness for 2018 Chevy Equinox without Factory Tow Package
- Q&A: Troubleshooting Trailer Left Stop/Turn Lights Not Working with Curt # C56375 on a 2018 GMC Terrain
- Shop: 7- and 4-Pole Trailer Connector Socket w/ Mounting Bracket - Vehicle End
- Video: Choosing the Right Trailer Wiring
- Search Results: 44649
- Shop: Trailer Hitch
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Q&A: What is the Difference Between a Class II and a Class III Hitch?
- Shop: Curt Powered Tail Light Converter with 4-Pole Flat Trailer Connector
- Article: Trailer Wiring Diagrams
- Search Results: 68149
- Shop: Brake Controller
- Q&A: What is the Difference Between a 4-Way and 7-Way Trailer Connector
- Video: Tow Ready 4-Pole Mounting Bracket Installation
- Q&A: Recommended Replacement for Atwood Surge Brake Actuator 85778
- Article: How to Choose the Right Trailer Hitch Class
- Search Results: 25580
- Shop: Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat - 10 Gauge Wires
- Video: Draw-Tite Max-Frame Trailer Hitch Installation - 2019 Chevrolet Equinox
- Shop: Fifth Wheel Hitch
- Article: My Trailer Hitch Doesn't Fit
- Shop: Gooseneck Hitch
- Shop: Tekonsha Prodigy P3 Trailer Brake Controller - 1 to 4 Axles - Proportional
- Video: Curt 4-Pole Flat Trailer Connector Mounting Bracket Review
on Custom Fit Vehicle Wiring
