Trailer wiring harness - Toyota Tundra Forums : Tundra Solutions Forum

subl1minal · #1 (**permalink**) 03-02-2009, 02:05 AM

Ok so I bought a brake controller and a 7-pin plug for my 2000 tundra recently, but haven't had a chance to install it. I looked up under the truck today, and the 4-pin trailer plug goes about a foot and a half up the frame and then plugs into a gray connector. next to it is a slightly larger connector..... same color, looks like it's a place to plug in a 7-pin plug? is it really that easy that all i have to do is buy the small 7-pin plug and harness and then wire in my brake controller?

sr5mike · #2 (**permalink**) 03-02-2009, 07:16 AM

I bought I flat four to 7 pin adapter so that I could still unplug it and use the flat four.

Hickleberry · #3 (**permalink**) 03-02-2009, 07:32 PM

Quote:

Originally Posted by sr5mike

I bought I flat four to 7 pin adapter so that I could still unplug it and use the flat four.

But that would just give you lights, turn signals and brakes???

Roadrash · #4 (**permalink**) 03-02-2009, 07:43 PM

If there is a way to simply plug-n-play that would certainly be pretty sweet. I probably went the hard route by not exploring that option.
I have electric brakes on my trailer also. I retained the stock wiring harness and then wired the brakes separately using just one wire to the trailer. That one wire comes from the controller. The controller was given to me from the place I worked , so I was just happy to have not spent $50-60. Though I had never messed with brake controllers , it was pretty easy to figure out.
I made it easier on myself by wiring the controller without the brake pedal switch trigger , which means I can apply the trailer brakes at any time with no regard to the truck's brakes being applied. However , if you choose to wire it up this way , be aware that the brake lights will not illuminate.
I can provide pics and more info you like.