What is Function of Black Wire on Trailer 7-Way part # HM20048
Question:
Just purchased 7 way trailer harness. What is black wire for?Looking at your on line diagram there is a purple wire for back up lights but i dont see black.there is no purple on this harness. Hm20048 item number
asked by: Dave W
0
Expert Reply:
The black wire of the Hopkins 7-Way Molded Trailer Wire Connector # HM20048 carries the 12 volt accessory circuit. This is the circuit that will typically power interior lights or charge a trailer's battery.
I attached a help article that covers trailer wiring for you to check out as well.
expert reply by:
Jameson C
0

Product Page this Question was Asked From
Hopkins 7-Way Molded Trailer Wire Connector - 11' Long
- Trailer Wiring
- Trailer Connectors
- Trailer End Connector
- 11 - 20 Feet Long
- Plug and Lead
- 7 Round - Blade
- Hopkins
more information >
Featured Help Information
Miscellaneous Media
Continue Researching
- Article: Trailer Wiring Diagrams
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Shop: Progressive Dynamics Replacement Section for AC/DC Power Distribution Panel - 55 Amp
- Search Results: safety chain retainer
- Shop: Buyers Products Weld-On Safety Chain Retainer For 5/16" Chain
- Shop: Progressive Dynamics 4000 Series RV Converter w/ Charge Wizard and AC/DC Distribution Panel - 60 Amp
- Shop: Suspension Enhancement
- Article: Trailer Lighting Requirements
- Search Results: pd4655
- Shop: Taskmaster ST235/75R15 Trailer Tire with Black Vesper Mod Wheel - 5 on 4-1/2
- Article: Parts Needed to Add Electric Drum Brakes to a Trailer
- Shop: Kenda Karrier ST235/85R16 Radial Trailer Tire with 16" Black Mod Wheel - 6 on 5-1/2 - LR E
- Search Results: 5/16 safety chain
- Shop: Kenda Karrier ST225/75R15 Radial Tire with 15" Black Galvstar - 6 on 5-1/2 - Load Range D
- Shop: Round, Pipe Mount Swivel Jack w/ Footplate - Weld On - Sidewind - 15-1/2" Travel - 7K
- Search Results: off road tires
- Video: Trailer Brakes and Wiring Installation
- Q&A: Replacing a DC Convertor as Part of AC Panel on RV
- Search Results: coupler
- Search Results: hitch
- Search Results: weight distribution hitch
- Video: All About the Tow Ready Safety Chain Kit with Clevis Hooks
- Video: In-Depth Review of the Round, Pipe Mount Swivel Jack w/ Footplate
- Video: Detailed Breakdown of the Buyers Products Weld-On Safety Chain Retainer For 5/16" Chain
- Video: Comprehensive Review: Square Direct Weld Jack w/ Footplate
- Video: Hands-On with the 48" Long Safety Chain with 1/4" S-Hook
- Video: Hands-On with the Taskmaster ST235/75R15 Radial Off-Road Tire w/ 15" Vesper Black Mod Wheel
- Q&A: Does The Progressive Dynamics PD4655V Have A Lithium Jumper
- Article: Overview of Lubricating Grease
- Article: Breakaway Kit Installation for Single and Dual Brake Axle Trailers