Which Post On My 7-Way is the 12 Volt Power Source
Question:
I Have No Hot Post On My 7way To Make The HM47675 Work. Witch Post Should Be Hot?
asked by: Rex B
Expert Reply:
The 12v lead should be connected to the first prong clockwise from the top of your 7-way plug, but you will need to double check your existing application to confirm that it is wired this way. The color of this wire is typically black.
I would recommend you use a Hook Probe Circuit Tester # PTW2993, to determine if you have power at this post. If not you should check the wiring on the back of the 7-way connector and then follow it back looking for any cuts, or corrosion that might be shorting out the wire.
I attached a picture to the right that shows how 7-ways are typically wired.
I also attached a link to an FAQ page on trailer wiring that you might find informative.
Products Referenced in This Question
Product Page this Question was Asked From
Hopkins Multi-Tow Trailer Connector Adapter - 7-Way to 5-Wire Flat/4-Wire Flat and 12-V Power Socket
- Trailer Wiring
- Wiring Adapters
- Multi-Function Adapter
- 7 Round - Blade
- Plug Only
- 5 Flat
- 4 Flat
- 12 Volt
- Hopkins
more information >
Featured Help Information
Instructions
Miscellaneous Media
Continue Researching
- Shop: Hopkins Multi-Tow Trailer Connector Adapter - 7-Way to 5-Wire Flat/4-Wire Flat and 12-V Power Socket
- Shop: Pollak 7-Way to 12 Volt Power Outlet Adapter
- Shop: Spare Tire Cover
- Shop: Rampage Spare Tire Cover for Jeep - 33" to 35" - Black Diamond
- Q&A: Powering Trailer Mounted Winch from 7-Way Trailer Connector
- Q&A: Recommended Diode for Charging Line From Motorhome to Towed Vehicle (Toad)
- Q&A: How to Measure to Determine the Size Trailer Brakes Needed For Hydraulic Drum Replacement
- Q&A: How to Make Jumper Wire for Testing 12 Volt Trailer Lighting
- Q&A: How to Power Small 12V Air Compressor Using Trailer Connector
- Q&A: Diode for Preventing Trailer 12 Volt Accessory Circuit From Backfeeding
- Q&A: How Do I Power My Winch?
- Shop: Suspension Enhancement
- Video: Pollak Wiring - Wiring Adapters - PK11896 Review
- Video: Bulldog Winch Wiring Kit Installation - 2004 Ford F-250
- Shop: Bulldog Winch Rear Wiring Kit - Quick Connect to Terminal End - 2 Gauge - 24' Long
- Shop: Flint Hill Goods Connector Adapter - 7Way RV to 4Way Flat - 36" Cord
- Shop: Roadmaster Single Park Light Diode
- Shop: 12 Volt Outlet with Waterproof Cap - 10 Amp - Black
- Shop: Base Plate for Tow Bar
- Video: Firestone Air Command Compressor System Installation - 2021 Ford F-250 Super Duty
- Article: Routing the Power Wire for a Trailer Wiring Harness
- Search Results: air suspension compressor kit
- Video: Choosing the Right Trailer Wiring
- Article: Trailer Wiring Diagrams
- Shop: Trailer Hitch
- Search Results: 44649
- Search Results: 25580
- Shop: Trailer Wiring
- Video: Choosing the Right Brake Controller
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
on Trailer Wiring
