Anyone have the engine bay fuse box wiring diagrams for the c1-c4?

2003 CHEVROLET 2500

198,000 MILES • 6.0L • V8 • 4WD • AUTOMATIC

BURNSSAM928

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Need to find specifically c2s wiring diagrams for a 03 2500hd with a 6.0 for the under hood fuse box but would gladly take any of the diagrams I can get

Feb 25, 2026 at 6:05 AM

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Sure, I got you covered, her are the fuse panel under hood connector views for the C1, C2, C3 and C4 wiring connectors. Check out the images (below). Let us know if you need anything else.

Images (Click to enlarge)

Feb 26, 2026 at 7:36 AM