Page 517 of 800
ENGINE CONTROL SYSTEM
CIRCUIT DIAGRAMS90-53
ENGINE-
ECU
(FUSE )
2
(FUSE )15
DIAGNOSIS
CONNECTOR
DIAGNOSIS
CONNECTOR
POWER
STEERING
FLUID PRESSURE
SWITCHENGINE
SPEED
DETECTION
CONNECTOR VEHICLE
SPEED
SENSOR
METER AND
GAUGE
FRONT
SIDE
Wire colour code
B : Black LG : Light green G : Green L : Blue W : White Y : Yellow SB : Sky blue
BR : Brown O : Orange GR : Grey R : Red P : Pink V : Violet PU : Purple
Page 520 of 800
ENGINE CONTROL SYSTEM
CIRCUIT DIAGRAMS90-56
ENGINE CONTROL SYSTEM <4G1-M/T (RHD)> (CONTINUED)
ENGINE CONTROL
RELAY
FUEL
INJECTOR 1FUEL
INJECTOR 2FUEL
INJECTOR 3FUEL
INJECTOR 4
ENGINE-
ECU
ENGINE
CONTROL
OXYGEN
SENSOR
(REAR)ENGINE
CONTROL
OXYGEN
SENSOR
(FRONT)
Page 521 of 800
ENGINE CONTROL SYSTEM
CIRCUIT DIAGRAMS90-57
CAMSHAFT
POSITION
SENSOR
OUTPUT
GNDPOWER
SOURCE
INTAKE AIR
TEMPERATURE
SENSOREMISSION
SOLENOID
VALVE
(PURGE
CONTROL
SYSTEM)EMISSION
SOLENOID
VALVE
(EGR
SYSTEM)ENGINE
CRANK
ANGLE
SENSOR
INLET MANIFOLD
ABSOLUTE PRESSURE SENSORWATER
TEMPERA-
TURE
SENSOR
UNITTHROTTLE
BODY
THROTTLE
SENSOR
Wire colour code
B : Black LG : Light green G : Green L : Blue W : White Y : Yellow SB : Sky blue
BR : Brown O : Orange GR : Grey R : Red P : Pink V : Violet PU : Purple
Page 522 of 800
ENGINE CONTROL SYSTEM
CIRCUIT DIAGRAMS90-58
ENGINE CONTROL SYSTEM <4G1-M/T (RHD)> (CONTINUED)
CHARGING
SYSTEM
·MANUAL AIR
CONDITIONER ·MANUAL AIR
CONDITIONER·AUTOMATIC AIR
CONDITIONER ·AUTOMATIC AIR
CONDITIONER
·COOLING
SYSTEMTHROTTLE
BODY
IDLE SPEED
CONTROL
SERVO
ENGINE-ECU
ENGINE CONTROL
DETONATION
SENSOR
IMMOBILIZER
SYSTEMIGNITION
SYSTEM
FRONT
SIDEFRONT
SIDE
Page 523 of 800
ENGINE CONTROL SYSTEM
CIRCUIT DIAGRAMS90-59
ENGINE-
ECU
(FUSE )
2
(FUSE )15
DIAGNOSIS
CONNECTOR
DIAGNOSIS
CONNECTOR
POWER
STEERING
FLUID PRESSURE
SWITCHENGINE
SPEED
DETECTION
CONNECTOR VEHICLE
SPEED
SENSOR
METER AND
GAUGE
Wire colour code
B : Black LG : Light green G : Green L : Blue W : White Y : Yellow SB : Sky blue
BR : Brown O : Orange GR : Grey R : Red P : Pink V : Violet PU : Purple
Page 526 of 800
ENGINE CONTROL SYSTEM
CIRCUIT DIAGRAMS90-62
ENGINE CONTROL SYSTEM <4G1-A/T (LHD)> (CONTINUED)
ENGINE CONTROL
RELAY
ENGINE-
A/T-ECU
ENGINE
CONTROL
OXYGEN
SENSOR
(REAR)FUEL
INJECTOR 1FUEL
INJECTOR 2FUEL
INJECTOR 3FUEL
INJECTOR 4
ENGINE
CONTROL
OXYGEN
SENSOR
(FRONT)
Page 527 of 800
ENGINE CONTROL SYSTEM
CIRCUIT DIAGRAMS90-63
OUTPUT
GNDPOWER
SOURCE
INTAKE AIR
TEMPERATURE
SENSORCAMSHAFT
POSITION
SENSOR EMISSION
SOLENOID
VALVE
(PURGE
CONTROL
SYSTEM)EMISSION
SOLENOID
VALVE
(EGR
SYSTEM)ENGINE
CRANK
ANGLE
SENSOR
WATER
TEMPERA-
TURE
SENSOR
UNITTHROTTLE
BODY
THROTTLE
SENSOR
INLET MANIFOLD
ABSOLUTE PRESSURE SENSOR
Wire colour code
B : Black LG : Light green G : Green L : Blue W : White Y : Yellow SB : Sky blue
BR : Brown O : Orange GR : Grey R : Red P : Pink V : Violet PU : Purple
Page 528 of 800
ENGINE CONTROL SYSTEM
CIRCUIT DIAGRAMS90-64
ENGINE CONTROL SYSTEM <4G1-A/T (LHD)> (CONTINUED)
CHARGING
SYSTEM
·MANUAL AIR
CONDITIONER ·MANUAL AIR
CONDITIONER·AUTOMATIC AIR
CONDITIONER ·AUTOMATIC AIR
CONDITIONER
·COOLING
SYSTEMTHROTTLE
BODY IDLE
SPEED
CONTROL
SERVO
ENGINE-A/T-ECU
ENGINE CONTROL
DETONATION
SENSOR
IMMOBILIZER
SYSTEMIGNITION
SYSTEM
FRONT
SIDE