I'm getting ready to buy a Vibe travel trailer and I need to wire up a 7 wire harness to tow it. The Vibe's are extremely light, coming in at 3000K. Hummer should've have any problems towing that. Can someone help me out with wiring a 7 wire harness up. I only have the 4 pin harness.

Thanks

 

I went out and followed the harness to the front (contains the 4 wires for 4 pin connector) and I noticed it plugs into a connector just behind the battery. This connector coming FROM the battery/fuse has some wires not connected, one of them being blue. This makes 5 wires, what are the other two wires I need to run back from?


I was thinking of buying one of these-
http://www.ebay.com/itm/Venturer-Ele...item53f9e21fd4

 

Heavy-Duty Trailer Wiring Package
The trailer towing harness contains the following
seven trailer circuits:
• Yellow: Left Stop/Turn Signal
• Dark Green: Right Stop/Turn Signal
• Brown: Taillamps
• White: Ground
• Light Green: Back-up Lamps
• Red: Battery Feed
• Dark Blue: Trailer Brake


Light-Duty Trailer Wiring Package
If your vehicle is not equipped with a trailer
towing package, the chassis harness will
contain the following blunt cut circuits:
• Yellow: Left Stop/Turn Signal
• Dark Green: Right Stop/Turn Signal
• White: Ground
• Brown: Tail Lamps


http://schwarttzy.com/wp-content/upl...ers-Manual.pdf

 

Here's the harness that the stock 4 way wires plug into.
I have 4 open ports that i've marked with yellow arrows. Red wire, Black wire, Blue wire, and Green wire

 

read my previous post... Red wire is a battery feed, don't think you need it for towing?.. Blue wire is for trailer brake... Light green wire is for Back-up lamps.. The other wires are for the turn signals, stop lamps, taillights as noted above.

GL

 

Looked at another H3 that has the 7 way harness connected and they don't have the red wire connected. Just the blue and Light green. I get my 7 way harness on Monday and I'll wire it up that day

 

red (battery feed) not necessary unless you want auxiliary power / interior lights.. GL

 

Thanks for the help Hummerz, really appreciate it. Do you know if I can connect into the factory harness at all? I don't know what kind of connectors go on the wires to go into the factory harness

 

metripack or pakcon terminals... get a terminal release tool and pull 1 out of the connector to identify. your local napa should have an assortment of oem terminals. GL