Page 729 of 1701
PRECAUTIONSANDPREPARATION
I
GA, SR
I
Precautions (Cont'd)
• Before replacing ECM,perform Terminals andReference
Value inspection andmake sureECM functions properly.
Refer toEC-281 forSR engine modelandEC-78 forGA
engine model.
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MEF040D
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Circuit tester
.1
SEF34BN
•
After performing eachTROUBLE DIAGNOSIS, perform
"OVERALL FUNCTIONCHECK"or"DTC (Diagnostic Trou-
ble Code) CONFIRMATION PROCEDURE".
The DTC should notbedisplayed inthe "DTC CONFIRMA-
TION PROCEDURE" ifthe repair iscompleted. The"OVER-
ALL FUNCTION CHECK"shouldbeagood result ifthe
repair iscompleted.
• When measuring ECMsignals withacircuit tester, never
allow thetwo tester probes tocontact.
Accidental contactofprobes willcause ashort circuit and
damage theECM power transistor.
EC-10
Page 730 of 1701

ENGINEANDEMISSION CONTROL OVERALLSYSTEM
Circuit Diagram -Except forAustralia
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EC-11
Page 731 of 1701

ENGINEANDEMISSION CONTROL OVERAllSYSTEM
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EC-12
Page 732 of 1701
ENGINEANDEMISSION CONTROLOVERALLSYSTEM
System Diagram -GA14DE, GA16DE for
Europe andIsrael
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EC-13
Page 733 of 1701
ENGINEANDEMISSION CONTROL OVERALLSYSTEM
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EC-14
Page 734 of 1701
ENGINEANDEMISSION CONTROLOVERALLSYSTEM
System Diagram -GA 16DE except forEurope,
Israel andAustralia
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EC-15
Page 735 of 1701
ENGINEANDEMISSION CONTROL OVERALLSYSTEM
System Diagram -GA 16DE forAustralia
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EC-16
Page 736 of 1701
ENGINEANDEMISSION CONTROLOVERALLSYSTEM
ECCS Component PartsLocation -GA14DE,
GA 16DE forEurope andIsrael
Mass airflow sensor
Throttle positionsensor
Power steering oil
pressure switch
Engine coolant temperature
sensor
IACV-FICDsolenoidvalve
IACV-AAC valveFast
idlecam EGRvalve
&
EVAP canister purgecontrol solenoid valve
Distributor withbuilt-in camshaft position
sensor, powertransistor andignition coil
•
Throttle positionsensor
SEF122R
EC-17