Page 675 of 788
ENGINE CONTROL SYSTEM <4G6 (LHD)>
CIRCUIT DIAGRAMS90-37
ENGINE CONTROL SYSTEM <4G6 (LHD)>
M1901000802345
IGNITION
SWITCH (ST)
STARTING
SYSTEM
·COOLING
SYSTEM
·MANUAL AIR
CONDITIONER
ENGINE
CONTROL
RELAY
POWER
SOURCE
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 BACK-UP
POWER SOURCE IGNITION
SWITCH (IG1)
ENGINE-
ECUFUEL
PUMP
RELAY
(1)FUEL
PUMP
RELAY
(2)
COMBINATION
METERBATTERY FUSIBLE
LINK
1
RELAY
BOX
FUEL
TANK
PUMP
NOTE: SEDAN
: WAGON
Page 677 of 788
ENGINE CONTROL SYSTEM <4G6 (RHD)>
CIRCUIT DIAGRAMS90-39
ENGINE CONTROL SYSTEM <4G6 (RHD)>
M1901000802356
NOTE
·FRONT FOG LAMP
·HEADLAMP :
·TAIL LAMP, POSITION LAMP,
LICENCE PLATE LAMP AND
LIGHTING MONITOR BUZZER
·TURN-SIGNAL LAMP
AND HAZARD WARNING LAMP
·WINDSHIELD
WIPER AND WASHER ·REAR FOG LAMP
·REAR WIPER AND WASHERIGNITION
SWITCH (ST)
STARTING
SYSTEM
·COOLING
SYSTEM
·MANUAL AIR
CONDITIONER
ENGINE
CONTROL
RELAY
POWER
SOURCE
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 BACK-UP
POWER SOURCE
IGNITION
SYSTEM
IGNITION
SWITCH (IG1)
ENGINE-ECUFUEL
PUMP
RELAY
(1)FUEL
PUMP
RELAY
(2)
COMBINATION
METERBATTERY FUSIBLE
LINK1
RELAY
BOX
FUEL
TANK
PUMP
Page 682 of 788

INVECS-II 4A/T
CIRCUIT DIAGRAMS90-44
INVECS-II 4A/T (CONTINUED)
INVECS-II 4A/T (CONTINUED)
ENGINE-
A/T-ECUFUSE
3()
SHIFT
SWITCH
ASSEMBLYINHIBITOR
SWITCH
SELECT
SWITCH SHIFT
SWITCH
FUSE
2()
FUSE22()J/C (1) J/C (5)
CONTROL CIRCUIT
COMBINATION
METERSHIFT
POSITION
INDICATOR
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 RELAY
BOXFUSE
3() SHIFT
SWITCH
ASSEMBLY TAIL LAMP
RELAY
RHEOSTAT
INHIBITOR
SWITCH FRONT-ECUTAIL LAMP, POSITION
LAMP, LICENCE
PLATE LAMP AND
LIGHTING MONITOR
BUZZER
ENGINE-
A/T-ECU
THROTTLE
BODY
THROTTLE
SENSOR
DIAGNOSIS
CONNECTORFUSIBLE
LINK
ENGINE CONTROL
SYSTEM
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
1A/T
CONTROL
RELAY
A/T CONTROL
SOLENOID
VALVE ASSEMBLY
ENGINE CONTROL
SYSTEM
ENGINE-
A/T-ECU
NOTE
:
:
:
:
: UNDERDRIVE
SOLENOID VALVE
SECOND
SOLENOID VALVE
DAMPER CLUTCH
CONTROL
SOLENOID VALVE OVERDRIVE
SOLENOID VALVE
LOW AND REVERSE
SOLENOID VALVE
A/T FLUID
TEMPERATURE
SENSOR
FRONT
SIDE
Page 684 of 788

INVECS-II 4A/T
CIRCUIT DIAGRAMS90-46
INVECS-II 4A/T (CONTINUED)
INVECS-II 4A/T (CONTINUED)
ENGINE-
A/T-ECUFUSE
3()
SHIFT
SWITCH
ASSEMBLYINHIBITOR
SWITCH
SELECT
SWITCH SHIFT
SWITCH
FUSE
2()
FUSE22()J/C (1)
CONTROL CIRCUIT
COMBINATION
METERSHIFT
POSITION
INDICATOR
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 FUSE
3() SHIFT
SWITCH
ASSEMBLY TAIL LAMP
RELAY
RHEOSTAT
INHIBITOR
SWITCH FRONT-ECUTAIL LAMP, POSITION
LAMP, LICENCE
PLATE LAMP AND
LIGHTING MONITOR
BUZZER
TAIL LAMP, POSITION
LAMP, LICENCE
PLATE LAMP AND
LIGHTING MONITOR
BUZZER
RELAY
BOX
ENGINE-
A/T-ECU
THROTTLE
BODY
THROTTLE
SENSOR
DIAGNOSIS
CONNECTORFUSIBLE
LINK
ENGINE CONTROL
SYSTEM
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
1
A/T CONTROL
SOLENOID
VALVE ASSEMBLY
NOTE
:
:
:
:
: UNDERDRIVE
SOLENOID VALVE
SECOND
SOLENOID VALVE
DAMPER CLUTCH
CONTROL
SOLENOID VALVE OVERDRIVE
SOLENOID VALVE
LOW AND REVERSE
SOLENOID VALVE
A/T
CONTROL
RELAY
ENGINE CONTROL
SYSTEM
ENGINE-
A/T-ECU
FRONT
SIDE
A/T FLUID
TEMPERATURE
SENSOR
Page 685 of 788
HEADLAMP
CIRCUIT DIAGRAMS90-47
HEADLAMP
M1901001501292
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 DIMMER·
PASSING
SWITCHLIGHTING
SWITCH
( )
( )
COLUMN-ECU POWER
SOURCEIGNITION
SWITCH (IG1) IGNITION
SWITCH (IG2)
COLUMN SWITCH BATTERY
RELAY
BOX
FRONT-ECU
HEADLAMP
RELAY: LO
( )HEADLAMP
RELAY: HI( )
HEADLAMP
(LH)(RH)
COMBINATION
METER RELAY
BOX
HEADLAMP
LEVELLING
SYSTEM
Page 687 of 788
HEADLAMP
CIRCUIT DIAGRAMS90-49
HEADLAMP
M1901001501300
DIMMER·
PASSING
SWITCHLIGHTING
SWITCH COLUMN-ECU
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 ( )
( )
POWER
SOURCEIGNITION
SWITCH (IG1) IGNITION
SWITCH (IG2)
COLUMN SWITCH
·ABS
·BRAKE WARNING LAMP
·CHARGING SYSTEM
·ENGINE CONTROL SYSTEM
·FUEL WARNING LAMP
·INVECS-II 4A/T
·METER AND GAUGE
·OIL PRESSURE WARNING
LAMP
( )HEADLAMP
RELAY: LO BATTERY
RELAY
BOX
FRONT-ECU( )HEADLAMP
RELAY: HI
HEADLAMP
(LH)(RH)
COMBINATION
METER RELAY
BOX
HEADLAMP
LEVELLING
SYSTEM
Page 691 of 788
TAIL LAMP, POSITION LAMP, LICENCE PLATE LAMP AND LIGHTING MONITOR BUZZER
CIRCUIT DIAGRAMS90-53
TAIL LAMP, POSITION LAMP, LICENCE PLATE LAMP AND LIGHTING MONITOR BUZZER
(CONTINUED)
RELAY BOX
(FUSE )
REAR
COMBINATION
LAMP
(TAIL: LH)LICENCE
PLATE LAMP
(LH) (RH)COMBINATION
METER21
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 RELAY BOX
(FUSE )
REAR
COMBINATION
LAMP
(TAIL: LH)LICENCE
PLATE LAMP
(LH) (RH)COMBINATION
METER
21
Page 695 of 788
FRONT FOG LAMP
CIRCUIT DIAGRAMS90-57
FRONT FOG LAMP
M1901011900287
POWER
SOURCEIGNITION
SWITCH (IG2)IGNITION
SWITCH (IG1)
COLUMN-ECU
LIGHTING
SWITCH
COLUMN
SWITCH ETACS-ECU
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 BATTERY
RELAY
BOX
FRONT FOG
LAMP RELAYRELAY
BOX
TAIL LAMP
RELAY
( )
ETACS-
ECU RELAY
BOX
FRONT FOG
LAMP
(LH)(RH)COMBINATION
METERFOG
LAMP
SWITCH FRONT-
ECU
TAIL LAMP,
POSITION LAMP,
LICENCE PLATE
LAMP AND
LIGHTING
MONITOR
BUZZER
RHEOSTAT SPARE
CONNECTOR
FOR FRONT
FOG LAMPTAIL LAMP,
POSITION LAMP,
LICENCE PLATE
LAMP AND
LIGHTING
MONITOR
BUZZER