Try some electical cleaner on the horn stalk (turnsignal)--spray it and work it into the contacts--it might work or not--maybe your horn is intermittant too--you can check for voltage at the horn when you press the stalk to confirm the switch is working. If you have voltage at the horn then the switch is OK--it must be the horn that is the problem. Clean the contacts on the horn and see if this might solve the problem. Put 12 volts directly to the horn to verify the horn is working!!!
mark
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