If you still can’t find your specific match, join a Freightliner Business Class owners’ forum—veteran mechanics and owner-operators often have scanned copies of original diagrams from 1994 that aren’t available anywhere else online.
A single misplaced fuse can cripple your truck. The 1994 FL80 does not have the fully computerized diagnostics of modern trucks; it relies on a series of blade fuses, maxi-fuses, and circuit breakers. Using an incorrect diagram can lead to: 1994 freightliner fl80 fuse box diagram