Sorry I miss read your question your horn is under your drivers side head light. You should have constant power to the orange wire terminal A at the horn connector. Also at terminal C black wire at the horn connector that should be a constant ground. Then terminal B at the horn connector black wire that should be ground when pressing the horn button. If all thats good replace the horn. Let me know what you find.
Monday, September 19th, 2011 AT 8:01 PM