Originally Posted by Sirsea
Personally, I would not want my RV dealer mucking with my tow vehicle wiring. My recommendation is take it to your Toyota dealer for installation and wiring of the 7-pin connector. No finger pointing if it is not wired correctly.
x2 on this!!
As I understand it your dealer is going to charge you $200.00 for a piece of wire to run from your battery to the 7 pin plug they installing for you? Did they have a gun handy? That is just criminal!
As Dave said above, what needs to happen is you need your tow vehicle converted from a 4 pin trailer output to a 7 pin trailer output. The additional pins are for trailer brakes, 12v power to the trailer, and reverse lights. SO in other words, part of the correct installation of a 7 pin trailer wiring configuration is the 12v power lead. Most OEM systems have this 12v lead switched off the key so that it does not drain the battery of the tow vehicle when not running. Perhaps he is installing a relay for that purpose and not giving you all the information you need.
Regardless, I would look to your vehicle manufacturer for correct install. Failure to use Toyota approved parts or install method will void certain parts of your warranty.
2013 Coachmen Freedom Express 320BHDS pulled by a 2005 F250 King Ranch CC
A rainy day camping is better than a sunny day at work.