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AUX on 7 pin plug??? Switched?

Discussion in 'Towing' started by ryanf, Jan 10, 2010.

  1. Jan 10, 2010 at 6:30 AM
    #1
    ryanf

    ryanf [OP] Well-Known Member

    Joined:
    Nov 27, 2008
    Member:
    #11079
    Messages:
    257
    Gender:
    Male
    NY
    Vehicle:
    06 AC 4X4 6cly/6spd TRD-OR
    Rain Visors,
    Hey guys, I need to rewire my trailer. I noticed there is a 12+ feed and an AUX in my tow harness. Is the AUX just a higher draw line or is that switched somewhere from in the cab? Switched would be great, but im curious if anyone just knows.
     
  2. Jan 11, 2010 at 12:23 AM
    #2
    MudDog

    MudDog Member

    Joined:
    Oct 19, 2009
    Member:
    #24526
    Messages:
    9
    Gender:
    Male
    Vehicle:
    10 PreRunner SR5
    The center (AUX) pin on a 7 pin connector is supposed to be backup lights.

    Not all trailers have backup lights. My does, but my previous tow vehicle was not wired on the center pin. I ended up wiring it myself and added a relay with additional auxilary backup lights right behind the trailer tires. It really helped backing into camp sites at night.

    Since I got the Tacoma, the backup lights on the trailer have not worked. I've been too lazy to put a meter on the pin and see if I get power when in reverse...
     
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