Terrain Fog lights on with High Beams mod - TerrainForum.net: GMC Terrain Forum
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post #1 of 1 (permalink) Old 12-21-2017, 05:27 PM Thread Starter
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Join Date: Aug 2016
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Terrain Fog lights on with High Beams mod

I've been searching the net high and low and cannot seam to get an accurate example for my application on how to do this mod. I have a 2010 GMC terrain SLT. I found a youtube video on how to do it to a GMC sierra with a diode in the BCM harness below the steering wheel, But don't know if the terrain uses the same wires and harness for it's lights. I've done this mode on my 06 Chevy Silverado 2500hd by jumping relays with diodes as well, but nothing is the same on the terrain. Anyone ever do any type of mod to make this happen.
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