For 1990-2009 cars only
| • | A harsh tone results from loose bolts in the sheet metal mounting area. |
| • | A low pitch moan results from too high a current. Adjust the horn as necessary. |
| • | A weak tone results from too low a current. Adjust the horn as necessary. |
| • | A weak strained tone results from a foreign body in the horn that should be shaken out or removed. |
| • | A harsh vibration is caused by the horn contacting the sheet metal. Bend the bracket in order to give the horn clearance and freedom from interference. |
