Question about 2007 GMC Sierra 1500
Need to find out where the connection is under the dash for the aux trailer brake controler and mabe what color it is for a 2007 GMC Sierra PU
The connector is located under the dash on the left side of the steering column. Their is a box, remove the cover and starting from the top left the second connector location moving to the right is the one to hook into, make sure that you have the correct wiring harnass adapter for the vehicle, their are two different ones for GM trucks. On the inside of the cover is also a diagram of the lay out of the box.
Posted on Jul 01, 2009
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Posted on Jan 02, 2017
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