The horn has just stopped working and it is not the fues
Activate the horn switch with a test light on both terminals of the horn.
IF the test light comes on then the horn is bad
IF the test list does not come on test the electrical connection
use the test light on the positive terminal and a known good ground
IF the light comes on, the ground on the horn was not connected properly
IF the light does not come on, there is an electrical issue with the switch, the wire grounding before the horn, or the fuse
SOURCE: cant find the horn on a fiat punto elx
mm i had one once er maybe under the fenders or the grill n light area .. hope this helps ,,, it was 30 yr ago
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