Troubleshooting Trailer Connector on 2017 Chevy Silverado
Updated 05/14/2018 | Published 05/11/2018
Question:
The left blinker has no voltage - Trailer plug on 2017 Silverado
asked by: Dennis
Expert Reply:
It is likely the result of a bad ground, but in order to determine the specific problem you'll need to use a circuit tester such as # PTW2993 to test the connector on your Silverado after disconnecting it from your trailer. Check the wiring going into your harness from your taillights to see if those wires are carrying the correct signals, if not then the issue is with the vehicle wiring. If the signals going to your harness are okay, you'll need to test the signals coming out of the harness, and if they are correct then your issue is likely going to be with the trailer side wiring.
An important issue you will want to take a look at are the ground connections, as they can be the cause of numerous lighting problems. You'll want to make sure your grounds are securely attached to bare metal surfaces free of any paint, dirt or corrosion of any kind. Also check your wiring thoroughly to ensure there are none that are crimped, broken or otherwise damaged. I've added links to a pair of help articles on trailer wiring that you may also find useful.
Product Page this Question was Asked From
Featured Help Information
Miscellaneous Media
Continue Researching
- Q&A: Troubleshooting Factory Trailer Brake Controller in 2017 Chevy Silverado 2500
- Shop: Grille Guard
- Shop: Westin HDX Winch Mount Grille Guard with Punch Plate - Black Powder Coated Steel
- Shop: Brake Controller
- Shop: Westin HDX Winch Mount Grille Guard with Punch Plate - Black Powder Coated Steel
- Shop: Westin HDX Grille Guard with Punch Plate - Black Powder Coated Steel
- Q&A: Will the Westin Grille Guard Interfere With Front Parking Sensors 2017 Chevy Silverado 2500
- Search Results: westin grille guards
- Q&A: Troubleshooting No Power on the Blue Brake Output Wire from a Brake Controller
- Shop: Brophy 4- and 5- Way Flat Circuit Tester
- Shop: LCD Digital Circuit Tester
- Shop: Hook Probe Circuit Tester
- Search Results: testers electrical tools
- Search Results: incandescent light w led testers trailer lights
- Search Results: electrical tools
- Video: LCD Digital Circuit Tester Feature Review
- Video: What to Know About the Hook Probe Circuit Tester
- Video: Brophy 4- and 5- Way Flat Circuit Tester Review
- Video: Feature Breakdown: LCD Digital Circuit Tester
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Shop: Curt Powered Tail Light Converter with 4-Pole Flat Trailer Connector
- Shop: Trailer Hitch
- Q&A: What is the Difference Between a Class II and a Class III Hitch?
- Search Results: trailer hitch
- Article: Trailer Wiring Diagrams
- Shop: Trailer Wiring
- Search Results: trailer wiring
- Q&A: What is the Difference Between a 4-Way and 7-Way Trailer Connector
- Video: How to Choose a Trailer Brake Controller
- Search Results: trailer tires and wheels
on Automotive Tools
