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Wiring schematic

Old October 26th, 2018, 11:04 PM
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Default Wiring schematic

I found a 2014 GMupfitter wiring schematic for a build out vehicle and was wondering how much was the same as a 2011
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Old October 27th, 2018, 1:39 AM
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Probably not a lot. But the same schematics are available for 2011 from the same source.

https://www.gmupfitter.com/pages/body-builder-manuals
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Old October 27th, 2018, 5:44 PM
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I bought a couple of wiring harnesses out of 2010 models. They were relatively the same, but my 2014 had newer revised fuseboxes and smaller connectors. I think what happens is as GM Updates it's Silverado's and such, minor electrical revisions are passed on to the Exress to keep their parts manufacturing simple.
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