Re: Not getting power to fusebox
Does engine crank?
Power from the battery pigtail to junction block next to battery to horn relay buss bar to/through firewall connector then spliced to headlamp switch and ignition switch. Red wire, thick #10 AWG.
Usual culprit is the horn relay buss bar. Remove terminals and clean all, same goes for the junction box next to the battery on the radiator support. In fact, you may want to remove the junction block as rust builds up behind the block and to the rad support providing a high resistance and deadens the battery over time.
You might disconnect the battery and use the beeper of the DMM and connect continuity tester between BAT terminal and IGN terminal on fusebox and listen for beep when ign switch is in IGN. No beep, worn/dirty/burnt contacts in ign switch. Maybe turning the bejesus outta the ign switch might clean u the contacts.
You could always insert a toggle switch between these two terminals to simulate ign.
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