Operation CHARM: Car repair manuals for everyone.

Initial Inspection and Diagnostic Overview

As fault diagnosis starts when repairs are taken on, the following procedure is recommended:
1. Verify the customer concern by operating the system.





2. Visually inspect for obvious signs of mechanical or electrical damage.
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 concern is not visually evident, verify the symptom and refer to the Symptom Chart.Symptom Related Diagnostic Procedures