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 malfunction. 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