Diagnostic Strategies

How to Proceed With Trouble Diagnosis
1. Confirm the symptom or customer complaint.
2. Understand operation description and function description. Refer to "System Description".
3. Carry out the Preliminary Check. Refer to LT-130, "Preliminary Check". Initial Inspection and Diagnostic Overview
4. Check symptom and repair or replace the cause of malfunction.
5. Does the interior room lamp operate normally? If YES: GO TO 6. If NO: GO TO 4.
6. Inspection End.