Have a 1990 F150 5.0 have power going to the
firewall on the battery do not have power on the
firewall to the ignition or none of the lights will turn
on on the dash
Found this info for your fuse box. Hope you can read it? Maybe it will help?
Use multimeter and check for voltage going to fuse block. If voltage, begin checking individual pins within each fuse holder for voltage. Make sure there is a good ground.
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