TrailManor Owner's Forum - View Single Post - New (old) TV--4-pin to 7-pin question

**dr carver** · 07-20-2018, 06:14 AM

Ken,

Often the wiring harness already exists on the vehicle.
A quick check is to see if you have a plug under the dash (usually near the steering column) in the driver's position to attach a brake controller. If it is there, then there is probably a plug in the rear to attach a 7-pin connector and positions in the fuse panel for fuses and a relay for brakes and trailer battery.

If not, then you need to use the kit such as the one from etrailer.

07-20-2018, 06:14 AM	#4
dr carver Site Sponsor Join Date: May 2012 Location: Interlachen, FL Posts: 40	4 pin to 7 pin Ken, Often the wiring harness already exists on the vehicle. A quick check is to see if you have a plug under the dash (usually near the steering column) in the driver's position to attach a brake controller. If it is there, then there is probably a plug in the rear to attach a 7-pin connector and positions in the fuse panel for fuses and a relay for brakes and trailer battery. If not, then you need to use the kit such as the one from etrailer. __________________ Don & Lory 2003 3023 - Passed on to friends 2013 2720 SL TV - 2011 Ford Expedition w/towing package