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- - Wiring schematic (https://chevroletforum.com/forum/express-g-series-vans-30/wiring-schematic-92800/)

Rickf

October 26th, 2018 11:04 PM

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

mountainmanjoe

October 27th, 2018 1:39 AM

Probably not a lot. But the same schematics are available for 2011 from the same source.

https://www.gmupfitter.com/pages/body-builder-manuals

dberladyn

October 27th, 2018 5:44 PM

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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