Customer Problem Analysis Check - Lexus IS300 2005 Manual

1. CUSTOMER PROBLEM ANALYSIS
S
The 5 items in the table below are important points in the problem analysis:
S
In troubleshooting, the problem symptoms must be confirmed accurately. Preconceptions should be
discarded in order to give an accurate judgement. To ascertain 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 in the Customer Problem Analysis
D What ----- Vehicle model, system name
D When ----- Date, time, occurrence frequency
D Where ----- Road conditions
D Under what conditions? ----- Running conditions, driving conditions, weather conditions
D How did it happen? ----- Problem symptoms
(Sample) Supplemental restraint system check sheet.

CUSTOMER PROBLEM ANALYSIS CHECK

SUPPLEMENTAL RESTRAINT SYSTEM Check Sheet
Customer's Name
Date Vehicle Brought In
Date Problem First Occurred
Weather
Temperature
Vehicle Operation
2005 LEXUS IS300 (RM1140U)
INTRODUCTION
/ /
Fine Cloudy
Approx.
Starting
Driving [ Constant speed
Other
- HOW TO TROUBLESHOOT ECU CONTROLLED
SYSTEMS
Inspector's
Name
VIN
Production Date
Licence No.
Odometer Reading
Rainy Snowy
Idling
Acceleration
Author :
IN-23
/ /
km
miles
/ /
Other
Deceleration
]
Date :
23