under the hood
Yes, there is an alternator fuse for a 1992 Saturn SL2. It is easy to replace and is found in the fuse box of this car.
The cigar lighter actually uses the locks fuse underneath the dash.
You should be able to switch the relay with the horn relay and then check to see if the horn works.
NOT AT ALL
The horn does have a relay. If it just quit all of a sudden, it is probably the relay. If it works sometimes and doesn't sound very good, it is probably the horn. 1996 Saturn horns are very common. They get moisture in them and short out. You can tell if it is an old style horn by looking at where the connector plugs in. If it is green it is old style; if it is black it is new style. They usually short out taking the fuse with them so check the fuse in the under the hood fuse block as well to see if it is blown.
As far as I know, the horn is behind the driver's side headlight.
driver front fender inside
The water pump on a 1996 Saturn sl2 is located in the engine compartment. It sits below the AC compressor.
There are 2 fuse boxes on a 1999 Saturn SL2. The fuse for the tail lights is in the Electrical fuse box under the hood. It is located on the drivers side in front of the battery.
in the fuse/relay box under the hood
Passenger well.
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