auxillary battery
#2
Not sure about the 2017, but on earlier Duramax vans the on-frame battery was wired directly parallel wit h the main battery. The power distribution center is riveted at the back of the core support near the RH head light.
#3
pappajoe, was wondering if you had luck with finding the factory fuse junction and the blunt end connector ? i am working on a 2017 exp 2500 with the aux battery and can not locate the connector or the fuse junction.
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