A 1992 Heritage doesn't have fuses, they have circuit breakers from the factory. A circuit breaker is looks like a small metal container that is about about a half inch tall and wide and about an inch long. It works like a fuse in that execessive current will trip the circuit breaker just like the ones in your house but as soon as the bi-metal strip inside of it cools, it will reset itself until the next time the current level is exceeded. The current level is determined by the currrent handling capability of the wire in the circuit it is controlling.
Now, the Heritage was notorious of blowing the filaments in the rear tail light bulb. Have you tried a new bulb in it. If that's not what it is, you'll need a test light or a DVOM (digital volt ohm meter) and a schematic to trace out the problem.
The horn is probably not on the same circuit as the tail light. Use the test light or DVOM to check for voltage at the plug on the horn. It's probably got a bad ground or just the horn itself is bad.
Good Luck
steve
3,328 views
Usually answered in minutes!
×