the main UNFUSED stuff on fusible link B is the headlights.
All the rest is FUSED: instrument panel light, tail lights, etc .
So if fuses are NOT blowing, that might suggest headlight related wiring, or the wiring up to & including the fuse block. Sorry i can't be more specific or exhaustive, but there is so much stuff on typical electrical circuits it's very difficult to communicate without the schematic.