Flow of Diagnosis

1. Verify the customer concern by operating the horn.
2. Visually inspect for obvious signs of mechanical or electrical damage.

VISUAL INSPECTION CHART

Mechanical
^ Damaged horn(s)

Electrical
^ Blown Battery Junction Box (BJB) fuse(s):
- F13 (15 A)
^ Damaged wiring harness
^ Loose or corroded connectors
^ Damaged horn relay
^ Damaged horn switch

3. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
4. If the fault is not visually evident, determine the symptom and proceed to the Symptom Chart. Symptom Related Diagnostic Procedures