7 pin with 8 wires

[rocketeerperformance]

I bought an Adventure Trailer Horizon and need to convert my LX450 from 4 pin to 7 pin. I thought it would be fairly easy but I'm stuck as the plug that I bought from etrailer has 8 wires, not 7.

It has the 4 pin connection which is obvious as it hooks right into my existing 4 pin. There is then a white wire which goes to the body for ground. There is then a blue wire which goes to the brake controller.

Then there is a black and a yellow. One of those has to be the 12V for the battery on the Horizon. Which one is it? Black or Yellow? And what is the 8th wire for?

TIA!

 

[Aspen Trails Trailers]

Black is power, yellow normally is back up lights or an additional hot wire.

Bob

 

[rocketeerperformance]

Thanks. Why would I need an additional power lead? Either way. If I hook up the black and it doesn't charge the battery then I can swap over to the yellow. One of the two should be hooked up.

So, the ground is not considered part of the 7 pin then right?

 

[Aspen Trails Trailers]

You have something different than a standard 7pin connector, as it allows you to connect directly to the pre wired 4 wire plug, as I read it. Add on type deal. 4 wire and 7 wire use different colors for the turn lights normally. Some on here have been looking for a 12 way connection for additional power. I have no reason why. More chance of shorts.

You will need to connect to the battery, with a fuse in line most likely.

Bob

 

[rocketeerperformance]

This is the one that I bought:

http://www.towready.com/content/products.aspx?lvl=3&parentid=1501&catID=1575&part=20144

So, white is to ground, blue is to trailer brake controller and black is power lead to the battery with fuse right? Yellow I don't use.

 

[smote]

To which pin on the 7-way does the extra yellow wire run?

 

[ranchmuffler]

The yellow wire on that plug will go to back up.