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Old 04-16-2016, 02:48 AM   #21
Senior Member
Join Date: Jul 2010
Location: Waynesville
Posts: 12,960
Originally Posted by Tomgky View Post
I had the same issue with my 2012 Yukon The wire is taped up by the fire wall under the hood. It is red you need to open the fuse box under the hood and hook it up. The fuse (on mine is a 40amp) was already in place all I had to do is buy a metric nut and hook it up. I also found out that if you push the tow haul button while the engine is running it will boost the current to the TT battery.
Brings back memories, the Dealership? didnt have the "Metric nut or the 40A fuse" in their Parts Dept! Youroo!!

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Old 04-16-2016, 11:06 PM   #22
Join Date: Oct 2015
Location: Casselton, ND
Posts: 30
On both Suburbans I have owned I have had to hook up 2 wires on both of them. One was a 2012 1500 and one was a 2008 3/4 T. One wire is for the power to the trailer plug and the other wire is for the power to you trailer brake controller. One wire is taped up on the engine side of the fuse box and the other is between the fuse box and the fender. You have to buy the metric nuts to connect the wires to the 2 posts in the front of the fuse box. There are a bunch of YouTube videos on this including some on the this thread.

2008 Duramax K2500 Suburban
Allison 6SP - DSP5 Tuned
2014 Rockwood 8327SS

2012 Grey Wolf 28BH
2008 2500 Duramax Suburban
arich4387 is offline   Reply With Quote

power, trailer

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