Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
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This fuse feeds 12 volts to the body fuse panel then the power travels through all of the fuses and relays in the body fuse panel.Usually if this was a short with one of the body fuse panel components that the smaller fuses feed at the body fuse panel one of the smaller fuses would short out instead.Since the main 125 amp fuse is shorting out like this here this sounds like a fault in the wiring that leads from the 125 amp fuse to the body fuse panel.If you can trace this wire which should be a red wire with black stripe and should be a larger wire in size and see if any damage is found to this wiring needing repaired.
If this was already traced and checked and found to be o.k. let me know so we can continue.
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