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.
VISUAL INSPECTION CHART
Mechanical
^ Damaged horns
^ Damaged switch
Electrical
^ Blown fuse
^ Damaged wiring harness
^ Loose or corroded connections
^ Damaged horn relay
3. If fault is not visually evident, determine the symptom and proceed to Symptom Chart. Symptom Related Diagnostic Procedures