7-Way on 2002 Ford F-350 Does Not Have Power to Center Pin
Updated 07/28/2020 | Published 07/25/2020
Question:
Looking at your wiring diagram for a 7 way round trailer plug, it appears that the center pin should be powered for back-up lights. I tested the terminal with the lights on- no power. I tested the center pin with the truck in reverse and the back up lights on the vehicle, and no power. Does this mean the 7 way is wired incorrectly or what would be needed to supply power to back up lights? I would like to install a back up light on the rear of my camper and would like to utilize the 7 way adapter if possible. This is on a 2002 F350. Thanks in advance for your thoughts.
asked by: Mike
Expert Reply:
The center pin on the 7-way of your 2002 Ford F-350 should be the reverse lights, as you can see by the accompanying diagram. If it is not that means that either the 7-way is wired incorrectly, has a bad/broken wire somewhere, or if you were just testing the pin, the connector could be bad, as it may have corrosion or the wiring leading to the factory tow package port could be bad.
This is assuming you have the factory 7-way on your 2002 F-350, and if you do and the 7-way connector is back you can replace it with the Mighty Cord Replacement 7-Way RV-Style Trailer Connector for Factory Tow Package # A10-7072VP.
For a new connector that will also plug into your factory tow package wiring you will need the Wiring Harness for Factory Tow Package # 74682.
I also highly recommend using Dielectric Grease for Electrical Connectors # 11755 to help prevent any type of corrosion in your connector; using it will increase your 7-way's durability and extend its lifespan.
