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Jerry Newton
Jerry Newton, Chevy Technician
Category: Chevy
Satisfied Customers: 4508
Experience:  ASE Master Technician, L1, Master GM Technician. Over 20 years of bumper to bumper GM experience.
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I have a 04 2500 hd duramax that has no crank no start hvac

Customer Question

I have a 04 2500 hd duramax that has no crank no start hvac blower will not come on no line under prnd12 I have replaced ignition switch didn't help have checked relays und hood fuse box all are good have no power at crank fuze in that box inside has no power to ign o fuze I can put power to this fuse and everything works fine but haven't found where the power should come from for this fuse
Submitted: 1 year ago.
Category: Chevy
Expert:  Jerry Newton replied 1 year ago.

I am attaching a schematic that shows how power routes to the IGN 0 fuse. If you have any questions, just let me know, but this is pretty explanatory.