LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2004 >> SC 430 >> Repair and Diagnosis >> General Information >> Towing >> Introduction >> How To Troubleshoot Ecu Controlled Systems >> How To Proceed With Troubleshooting >> Customer Problem Analysis
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Customer Problem Analysis

HINT:

In troubleshooting, the problem symptoms must be confirmed accurately. Preconceptions should be discarded in order to give an accurate judgement. To clearly understand what the problem symptoms are, it is extremely important to ask the customer about the problem and the conditions at the time it occurred.

Important Points with Customer Problem Analysis 

(Sample) Supplemental Restraint System check sheet. 

Fig 1: Customer Problem Analysis Check Sheet
G03479511Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002