Flow of Diagnosis

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 steering wheel pad horn switch (part of driver side air bag module)

Electrical
^ Blown Battery Junction Box (BJB) Fuse 7 (20 A)
^ Damaged wiring harness
^ Damaged connections
^ Damaged horn relay

3. If the fault is not visually evident, determine the symptom and proceed to Symptom Chart. Symptom Related Diagnostic Procedures