Important Points in the Customer Problem Analysis
What ––––– Vehicle model, system name
When ––––– Date, time, occurrence frequency
Where ––––– Road conditions
Under what conditions? ––––– Running conditions, driving conditions, weather conditions
How did it happen? ––––– Problem symptoms
(Sample) Supplemental restraint system check sheet.
Supplemental Restraint System Check Sheet
Customer’s Name
Date Vehicle Brought In
Registration No.
Frame No.
Odometer Reading
km
miles
Date Problem First Occurred
Weather
Temperature
Vehicle Operation
Fine Cloudy
Starting Idling
Driving Constant speed Acceleration
Other
Inspector’s
Name
CUSTOMER PROBLEM ANALYSIS CHECK
Registration Year
Rainy Snowy
Other
/ /
/ /
/ /
Approx.
Deceleration[
]
–INTRODUCTION HOW TO TROUBLESHOOT ECU CONTROLLED
SYSTEMS
01–23
23Author: Date:
2002 CAMRY REPAIR MANUAL (RM881U)
CUSTOMER PROBLEM ANALYSIS
HINT:
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.
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.