Troubleshooting Trailer Brake Plug Getting 9V at Blue Wire
Published 09/14/2017
Products Featured in This Question
Question:
My voltage coming out of my truck is 12.6v on the blue wire for the electric brakes, when I plug my trailer plug in on the blue wire I'm getting 9v. Is the trailer plug bad?
asked by: Cornel
Expert Reply:
A faulty trailer plug is a possibility. What you can do is check the plug to see if there is any type of corrosion built up that may be hampering it's functionality. If the corrosion is extensive and you are unable to clean it, you'll need to replace your connector with a new one such as the Hopkins 7-Way Connector # H20046 or Pollak 7-Pole Connector # PK12706.
The other thing you'll want to do is check your wiring, making sure there are no wires which are pinched or damaged in any way.
Continue Researching
- Search Results: grease caps
- Q&A: When Should Trailer Wheel Bearings be Replaced
- Shop: Terran Industries Electric Trailer Brakes - Self-Adjusting - 10" - Left/Right Hand - 3.5K
- Shop: LubriMatic Deluxe Bearing Packer
- Shop: Dexter Nev-R-Adjust Electric Trailer Brakes - 10" - Left/Right Hand Assemblies - 3.5K
- Q&A: Should Blue Wire on Trailer Have Power
- Q&A: Does Trailer Lighting Ground Through the Hitch Ball
- Q&A: What Gauge Wire Should be Used to Wire Trailer Brakes
- Shop: Wiring Kit for 2 and 4 Brake Electric Brake Controllers
- Q&A: Is the Dexter Dual Hydraulic Jack System Self Leveling?
- Q&A: Is There An All Lithium Version Of The Progressive Dynamics Replacement Converter Section PD4655V
- Q&A: Replacement Converter for WFCO WF-8955PEC for Lithium Batteries
- Article: It's Fun Until It Breaks: Synthetic or Steel Winch Rope
- Article: Trailer Wiring Diagrams
- Article: Is It Illegal to Leave My Hitch on My Truck?
- Article: 5 Tell-Tale Signs It’s Time to Replace Your Trailer’s Leaf Springs
- Article: Trailer Lighting Requirements
- Article: Trailer Maintenance Schedule
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)