Important Points with 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 OperationFine Cloudy
StartingIdling
Driving
Constant speed Acceleration
OtherInspector's
Name
CUSTOMER PROBLEM ANALYSIS CHECK
Registration Year
RainySnowyOther / / / /
/ /
Approx.
Deceleration [
]
01±24± INTRODUCTIONHOW TO TROUBLESHOOT ECU CONTROLLED
SYSTEMS
AVENSIS REPAIR MANUAL (RM1018E)
CUSTOMER PROBLEM ANALYSIS
HINT:
In troubleshooting, the problem symptoms must be confirmed accurately, meaning that all preconcep-
tions must be set aside in order to make an accurate judgement. To ascertain what the problem symp-
toms are, it is extremely important to ask the customer about the problem and conditions when it oc-
curred.
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. Therefore, as much informa-
tion as possible should be gathered and its relationship with the problem symptoms should be correctly
ascertained for use as reference in troubleshooting. A customer problem analysis table is provided for
your use in the Diagnostics Section for each system.
0505N±04
ENGINE CONTROL SYSTEM Check Sheet
Customer's Name
Driver's Name
Date Vehicle
Brought in
License No.
VIN
Production Date
Licence No.
Odometer Reading
km
miles
Problem Symptoms
Engine does
not Start
Difficult to
Start
Poor Idling
Poor
Driveability
Engine Stall
Others
Engine does not crankNo initial combustionNo complete combustion
Engine cranks slowly
Other
Incorrect first idleIdling rpm is abnormalHigh ( rpm)Low ( rpm)
Rough idling
Other
HesitationBack fireMuffler explosion (after±fire)Surging
Knocking
Other
Soon after startingAfter accelerator pedal depressed
After accelerator pedal released
During A/C operation
Shifting from N to D
Other
Data Problem
Occurred
Problem Frequency
Condition When
Problem Occurs
Weather
Engine Operation
Engine Temp. Place Outdoor
TemperatureConstant
Sometimes ( times per day/month)Once only
Other
Fine
CloudyRainySnowyVarious/Other
Hot
Warm Cool
HighwaySuburbsInner CityUphillDownhill
Rough road
Other
Cold
Warming upAfter Warming upAny temp.Other
Starting
Just after starting ( min.)IdlingRacing
Driving
Constant speedAccelerationDeceleration
A/C switch ON/OFF
Other
Condition of check engine warning light
(CHK ENG)Remains on Sometimes lights up Does not light up
Normal Malfunction code(s) (code )
Freeze frame data ( )
Normal Malfunction code(s) (code )
Freeze frame data ( )
Normal mode
(Pre±check)
Check Mode DTC InspectionInspector's
Name
Cold (approx. C/ F)
05±4
± DIAGNOSTICSSFI SYSTEM (1ZZ±FE/3ZZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
CUSTOMER PROBLEM ANALYSIS CHECK
05C6L±01
ENGINE CONTROL SYSTEM Check Sheet
Customer's Name
Driver's Name
Date Vehicle
Brought in
License No.
VIN
Production Date
Licence No.
Odometer Reading
km
miles
Problem Symptoms
Engine does
not Start
Difficult to
Start
Poor Idling
Poor
Driveability
Engine Stall
Others
Engine does not crankNo initial combustionNo complete combustion
Engine cranks slowly
Other
Incorrect first idleIdling rpm is abnormalHigh ( rpm)Low ( rpm)
Rough idling
Other
HesitationBack fireMuffler explosion (after±fire)Surging
Knocking
Other
Soon after startingAfter accelerator pedal depressed
After accelerator pedal released
During A/C operation
Shifting from N to D
Other
Data Problem
Occurred
Problem Frequency
Condition When
Problem Occurs
Weather
Engine Operation
Engine Temp. Place Outdoor
TemperatureConstant
Sometimes ( times per day/month)Once only
Other
Fine
CloudyRainySnowyVarious/Other
Hot
Warm Cool
HighwaySuburbsInner CityUphillDownhill
Rough road
Other
Cold
Warming upAfter Warming upAny temp.Other
Starting
Just after starting ( min.)IdlingRacing
Driving
Constant speedAccelerationDeceleration
A/C switch ON/OFF
Other
Condition of check engine warning light
(CHK ENG)Remains on Sometimes lights up Does not light up
Normal Malfunction code(s) (code )
Freeze frame data ( )
Normal Malfunction code(s) (code )
Freeze frame data ( )
Normal mode
(Pre±check)
Check Mode DTC InspectionInspector's
Name
Cold (approx. C/ F)
05±148
± DIAGNOSTICSSFI SYSTEM (1AZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
CUSTOMER PROBLEM ANALYSIS CHECK
05CDT±01
ENGINE CONTROL SYSTEM Check Sheet
Customer's Name
Driver's Name
Date Vehicle
Brought in
License No.
VIN
Production Date
Licence No.
Odometer Reading
km
miles
Problem Symptoms
Engine does
not Start
Difficult to
Start
Poor Idling
Poor
Driveability
Engine Stall
Others
Engine does not crankNo initial combustionNo complete combustion
Engine cranks slowly
Other
Incorrect first idleIdling rpm is abnormalHigh ( rpm)Low ( rpm)
Rough idling
Other
HesitationBack fireMuffler explosion (after±fire)Surging
Knocking
Other
Soon after startingAfter accelerator pedal depressed
After accelerator pedal released
During A/C operation
Shifting from N to D
Other
Data Problem
Occurred
Problem Frequency
Condition When
Problem Occurs
Weather
Engine Operation
Engine Temp. Place Outdoor
TemperatureConstant
Sometimes ( times per day/month)Once only
Other
Fine
CloudyRainySnowyVarious/Other
Hot
Warm Cool
HighwaySuburbsInner CityUphillDownhill
Rough road
Other
Cold
Warming upAfter Warming upAny temp.Other
Starting
Just after starting ( min.)IdlingRacing
Driving
Constant speedAccelerationDeceleration
A/C switch ON/OFF
Other
Condition of check engine warning light
(CHK ENG)Remains on Sometimes lights up Does not light up
Normal Malfunction code(s) (code )
Freeze frame data ( )
Normal Malfunction code(s) (code )
Freeze frame data ( )
Normal mode
(Pre±check)
Check Mode DTC InspectionInspector's
Name
Cold (approx. C/ F)
± DIAGNOSTICSSFI SYSTEM (1AZ±FSE)
05±293
AVENSIS REPAIR MANUAL (RM1018E)
CUSTOMER PROBLEM ANALYSIS CHECK
054JC±04
ENGINE CONTROL SYSTEM Check Sheet
Customer's Name
Driver's Name
Date Vehicle
Brought in
License No.
VIN
Production Date
Licence No.
Odometer Reading
km
miles
Problem Symptoms
Engine does
not Start
Difficult to
Start
Poor Idling
Poor
Driveability
Engine Stall
Others
Engine does not crankNo initial combustionNo complete combustion
Engine cranks slowly
Other
Incorrect first idleIdling rpm is abnormalHigh ( rpm)Low ( rpm)
Rough idling
Other
HesitationBack fireMuffler explosion (after±fire)Surging
Knocking
Other
Soon after startingAfter accelerator pedal depressed
After accelerator pedal released
During A/C operation
Shifting from N to D
Other
Data Problem
Occurred
Problem Frequency
Condition When
Problem Occurs
Weather
Engine Operation
Engine Temp. Place Outdoor
TemperatureConstant
Sometimes ( times per day/month)Once only
Other
Fine
CloudyRainySnowyVarious/Other
Hot
Warm Cool
HighwaySuburbsInner CityUphillDownhill
Rough road
Other
Cold
Warming upAfter Warming upAny temp.Other
Starting
Just after starting ( min.)IdlingRacing
Driving
Constant speedAccelerationDeceleration
A/C switch ON/OFF
Other
Condition of check engine warning light
(CHK ENG)Remains on Sometimes lights up Does not light up
Normal Malfunction code(s) (code )
Freeze frame data ( )
Normal Malfunction code(s) (code )
Freeze frame data ( )
Normal mode
(Pre±check)
Check Mode DTC InspectionInspector's
Name
Cold (approx. C/ F)
± DIAGNOSTICSECD SYSTEM (1CD±FTV)
05±527
AVENSIS REPAIR MANUAL (RM1018E)
CUSTOMER PROBLEM ANALYSIS CHECK
050X4±14
ABS Check SheetInspector 's
Name:
Customer 's Name
Date Vehicle
Brought InVIN
Licence No.
Odometer Reading/ /
/ /
Date Problem First Occurred
Frequency the Problem Occurs/ /
ContinuouslyIntermittently ( times a day)
ABS does not operate.
ABS does not operate efficiently.
ABS Warning LightRemains ONDoes not Light Up
DTC Check1st Time
2nd TimeNormal Code
Malfunction Code (Code )
Normal CodeMalfunction Code (Code )
Symptomskm
miles
Brake Warning
LightRemains ONDoes not Light Up
STOP LIGHT SW
SYSTEM
Freeze Frame Data
#IG ON
VEHICLE SPDON
OFF
NO SYS
ABS
FAIL SF
km/h
MPH Production Date 05±698
± DIAGNOSTICSABS WITH EBD SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
CUSTOMER PROBLEM ANALYSIS CHECK
0542O±04
ABS & EBD & BA Check SheetInspector 's
Name:
Customer 's Name
Date Vehicle
Brought InOdometer Reading/ /
/ /
Date Problem First Occurred
Frequency Problem Occurs/ /
ContinuousIntermittent ( times a day)
ABS does not operate.
ABS does not operate efficiently.
ABS Warning Light
Remains ONDoes not Light Up
DTC Check1st Time
2nd TimeNormal Code
Malfunction Code (Code )
Normal CodeMalfunction Code (Code )
Symptomskm
miles
Brake Warning
Light
(PKB released)Remains ONDoes not Light Up
BA does not operate.
EBD does not operate.
STOP LIGHT SW
SYSTEM
Freeze Frame Data
#IG ON
VEHICLE SPDON
OFF
NO SYS
ABS
BA
FAIL SF
km/h
MPH VIN
Licence No. Production Date 05±754
± DIAGNOSTICSABS WITH EBD & BA & TRC & VSC SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
CUSTOMER PROBLEM ANALYSIS CHECK
Inspector 's
Name:
Customer 's Name
Date Vehicle
Brought InOdometer Reading/ /
/ /
Date Problem First Occurred
Frequency Problem Occurs/ /
ContinuousIntermittent ( times a day)
TRAC does not operate. (Wheels spin when starting rapidly.)
DisplaysDoes not Display
DTC Check1st Time
2nd TimeNormal Code
Malfunction Code (Code )
Normal CodeMalfunction Code (Code )
Symptomskm
miles
Light TRC OFF Indicator
Light SLIP Indicator
Remains ONDoes not Light Up
Check Item
NormalMalfunction Code (Code )
NormalMalfunction Code (Code )
ABS Warning Light
Malfunction
Indicator Light TRC & VSC Check Sheet
Remains ONDoes not Light Up
VSC does not operate. (Wheels sideslip at the time of sharp turning.)
VSC Warning
Indicator
Skid Control
BuzzerDoes not SoundSounds
VSC/TRC OFF SW
SYSTEM
Freeze Frame Data
SHIFT POSITION
YAW RATON
OFF
VSC/TRC
P, NR
D
deg/s
VFAIL
23
4L
MAS CYL PRESS
THROTTLE
MAS PRESS GRADE
G (RIGHT&LEFT)
G (BACK&FORTH)
STEERING ANG
deg
deg
MPa/s
G
G VIN
Licence No.Production Date
± DIAGNOSTICSABS WITH EBD & BA & TRC & VSC SYSTEM
05±755
AVENSIS REPAIR MANUAL (RM1018E)