Is There More than One Wiring Color Code Pin Out for 7-Ways on Gooseneck Trailer
Published 11/13/2019 >
Question:
My 6 wires is not giving me whats needed to make everything work right. Black brown white green red. Yellow were do they go on my new plug its a 7 way plug. 6 around 1 in the middle
asked by: Charles L
Expert Reply:
There are two wiring codes that typically get used for 7-way connectors and the only difference is the color of the wires and not the actual pin out. I attached a picture that shows the two common styles. If your trailer uses one style and the connector another you can use the diagram to see what would go where.
The other option is to use a jumper wire from a vehicle battery to apply to each wire (not white as that's ground and would spark) to see what lights up/activates and wire accordingly using the diagrams.
Product Page this Question was Asked From
Hopkins 7-Way RV Style Connector with Molded Cable - Trailer End - 8' Long - RV Standard
- Trailer Wiring
- Trailer Connectors
- Trailer End Connector
- 7 Blade
- Plug and Lead
- Hopkins
more information >
Featured Help Information
Instructions
Continue Researching
- Article: Trailer Wiring Diagrams
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Q&A: Parts Needed to Add Brakes to a 3.5K Single Axle Trailer
- Q&A: What Gauge Wire Should be Used to Wire Trailer Brakes
- Q&A: What is the Difference between the Hopkins Trailer Wiring Harnesses HM20041 and H20046?
- Article: Trailer Lighting Requirements
- Q&A: How to Replace a Lance 6-Pin Plug w/ a Standard 7-Way Connector
- Q&A: Instructions to Wire a Trailer for Electric Brakes
- Q&A: Is there a Weigh Safe 180 Hitch 2 Ball Mount w/a Tongue Weight Scale?
- Q&A: What is AX Auxiliary Pin on Hopkins 7-Way Trailer Connector
- Article: Parts Needed to Add Electric Drum Brakes to a Trailer
- Article: The Best Towing Mirrors
- Article: Trailer Maintenance Schedule


