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CUSTOMER PROBLEM ANALYSIS
HINT:
S
In troubleshooting, the problem symptoms must be confirmed accurately and all preconceptions must
be cleared in order to give an accurate judgment. To ascertain what the problem symptoms are, it is
extremely important to ask the customer about the problem and conditions when it occurred.
S
The following 5 items are important points in the problem analysis. Past problems which are thought
to be unrelated and the repair history, etc. may also help in some cases. So, as much information as
possible should be gathered and its relationship with the problem symptoms should be correctly ascer-
tained for a reference in troubleshooting. A customer problem analysis table is provided in Diagnostics
section for each system for your use.
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
2002 CAMRY REPAIR MANUAL (RM881U)
INTRODUCTION
Inspector's
Name
/
/
Fine
Cloudy
Approx.
Starting
Driving
[
Constant speed
Other
–
HOW TO TROUBLESHOOT ECU CONTROLLED
SYSTEMS
Registration No.
Registration Year
Frame No.
Odometer Reading
Rainy
Snowy
Idling
Acceleration
Author :
01–23
/
/
km
miles
/
/
Other
Deceleration
]
Date :
23
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