Installing 7-Way Trailer Connector on 2001 Ford F350

Updated 03/05/2012 | Published 02/28/2012

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Ford Replacement OEM Tow Package Wiring Harness, 7-Way (Super Duty)

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Question:

I have a 2001 f350 dually i am trying to connect the wiring to my trailer. The brown wire turns on when the truck lights are on, but the brake lights wont work. The green wire turns on when the brakes are pushed, but dont have taillights. I am trying to wire this truck for a six way and a seven way plug. Any Help would be appreciated???

asked by: Robert E

Expert Reply:

If your F350 only has the 4-pole trailer connector, chances are that it is not equipped with the necessary relays that are factory installed when the vehicle is equipped with the factory tow package. The 7-way wiring harness, part # 118243 includes the necessary relays and fuses to activate the tow package so that the running lights will function for you. The relays would install in the large fuse box under the hood, and the fuses would install in the smaller adjacent fuse box. Your owners manual should list exact locations.

To convert the 7-way to a 6-way, you can use an adapter, like part # 47549.

I have provided install instructions for the 118243 wiring harness.

expert reply by: Mike L