For 1990-2009 cars only
- Operate the horns to confirm the owner's concern. Refer to Diagnostic System Check - Horns .
- Perform the following general inspections if poor horn tone is evident:
- Operate the horns to determine if the condition still exists. If the condition is still evident, perform the following specific inspections:
- Operate the horns to confirm that the concern has been repaired. Refer to Diagnostic System Check - Horns .
| 2.1. | Inspect for poor terminal connections; repair any poor connections found. |
| 2.2. | Inspect for poor ground connections. Correct the poor ground connections if evident. |
| 2.3. | Ensure that the horn to horn mounting bracket retaining nuts are properly tightened. |
| 2.4. | Ensure that the horn assembly mounting bolt is properly tightened. |
| 2.5. | Ensure that the horn assembly is not making contact with any other objects; if contact is being made, reposition the other object correctly or bend the horn assembly bracket slightly if necessary. |
| 3.1. | Determine the type of tone produced by the horn assembly: |
| • | A low-pitch moan (mooing sound) |
| • | A weak, strained tone |
| 3.2. | If a low-pitch moan (mooing sound) is evident, the current is too high and the horn assembly must be replaced. Refer to Horn Replacement . |
| 3.3. | If a weak, strained tone is evident, one or both of the horns may contain a foreign object; remove the horn assembly and inspect for foreign objects. Refer to Horn Replacement . |
| 3.4. | Remove any foreign objects, and reinstall the horn assembly. |
| 3.5. | If no foreign objects were found in either horn, or if the objects could not be removed, replace the horn assembly. |
