Operation CHARM: Car repair manuals for everyone.

Flow of Diagnosis

1. Verify the customer concern.
2. Visually inspect for obvious signs of mechanical and electrical damage.

Visual Inspection Chart

Mechanical
^ Damaged horn
^ Damaged steering wheel pad horn switch (part of driver side air bag module)
^ Damaged HORN relay
^ Damaged speed control servo (if equipped)

Electrical
^ Blown Fuse:
- 15A HORN
^ Damaged wiring harness
^ Loose or corroded connections

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