How to Perform Trouble Diagnosis

A good understanding of the malfunction conditions can make troubleshooting faster and more accurate. In general, each customer feels differently about a problem. It is important to fully understand the symptoms or conditions for a customer complaint.

INFORMATION FROM CUSTOMER

WHAT.......... Vehicle model
WHEN.......... Date, Frequencies
WHERE......... Road conditions
HOW........... Operating conditions, Symptoms

PRELIMINARY CHECK
Check that the following parts are in good order.

- Battery
- Fuse
- System component-to-harness connections