96 buick century - lights/brake lights/dome lights, etc not working. have tried replacing several fuses and a circuit breaker in fuse box in glove compartment. is there another fuse box under the hood? what else should i try?

Check fusible links coming off of the starter, with the battery disconnected.

Pull on the various colored wires that have a barrel of foam on them about 1/2" to 2/3" long that indicated that the wire is a fusible link.

If a fusible link stretches, the inside of it is blown. Many circuits can be controlled by the fusible links.
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REPLACEMENT

Fuses protect all the major electrical systems in the car. In case of an
electrical overload, the fuse melts, breaking the circuit and stopping the flow
of electricity.
If a fuse blows, the cause should be investigated and corrected before the
installation of a new fuse. This, however, is easier to say than to do. Because
each fuse protects a limited number of components, your job is narrowed down
somewhat.





Fig. 1: Fuses come in different colors which indicate different
amperage ratings



The amperage of each fuse and the circuit it protects are marked on the fuse
box, which is located under the left side (driver's side) of the instrument
panel and pulls down for easy access. To replace a fuse, simply pull it from the
panel. Insert a new (same amp rating) fuse in its place.

Bad head light switch