Operation CHARM: Car repair manuals for everyone.

Diagnostic Strategies

Use these steps to plan your diagnostic strategy. If you follow them carefully, you will be sure that you have exhausted most of the possible ways to find a light reminder alarm fault.
1. Gather information from the customer.
2. Verify that the condition described by the customer exists.
3. Find the malfunction by following the Symptom Chart.
4. Confirm the malfunction is eliminated.