Initial Inspection and Diagnostic Overview

1. Verify the customer concern by operating the horn.
2. Visually inspect for obvious signs of mechanical and electrical damage using the following table:

Visual Inspection Table

Mechanical
- Damaged horn(s).

Electrical
- Fuse 12 (15A)
- Damaged wiring.
- Loose or corroded connections.

3. If a concern is not evident proceed to the Symptom Chart. Symptom Related Diagnostic Procedures