Mitsubishi Lancer Evolution IX. Manual - part 19

ENGINE CONTROL SYSTEM

CIRCUIT DIAGRAMS

90-55

AUTOMATIC AIR
CONDITIONER

IMMOBILIZER
SYSTEM

ACD AND AYC

ENGINE CONTROL RELAY

ENGINE-
ECU

CLUTCH
SWITCH

IDLE
SPEED
CONTROL
SERVO

·AUTOMATIC AIR
 CONDITIONER
·COOLING SYSTEM

·AUTOMATIC AIR
 CONDITIONER
·COOLING
 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     PU : Purple

J/C(6)

OIL FEEDER
CONTROL
VALVE

ENGINE CONTROL SYSTEM

CIRCUIT DIAGRAMS

90-56

ENGINE CONTROL SYSTEM <RH drive vehicles> (CONTINUED)

J/C (6)

INJECTOR RESISTOR

INJECTOR

INJECTOR

INJECTOR

INJECTOR

FUEL 
PUMP 
RELAY 

(3)

FUEL PUMP
AND 

GAUGE 

UNIT (MAIN)

ENGINE-ECU

J/B

FUEL PUMP 
RELAY (2)

FRONT SIDE

FRONT 
SIDE

ENGINE CONTROL SYSTEM

CIRCUIT DIAGRAMS

90-57

FUEL PUMP 
RESISTOR

ENGINE-
ECU

VEHICLE 
SPEED 
SENSOR

DIAGNOSIS
CONNECTOR

DIAGNOSIS
CONNECTOR

J/B

(FUSE     )

2

J/B

(FUSE     )

15

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

·METER AND
 GAUGE
·WINDSHIELD
 WIPER
 AND WASHER

COOLING SYSTEM

CIRCUIT DIAGRAMS

90-58

COOLING SYSTEM

COOLING SYSTEM <LH drive vehicles>

M1901001001509

INPUT SIGNAL

· A/C SWITCH
· ENGINE
  COOLANT
  TEMPERATURE
  SENSOR

· VEHICLE SPEED
  SENSOR

ENGINE-
ECU

FUSIBLE
LINK

2

ENGINE
CONTROL
RELAY

FAN
CONTROL
RELAY

SMOOTHING
CIRCUIT

FIELD EFFECT
TRANSISTOR
CIRCUIT

INPUT SIGNAL
PROCESSING

DRIVE
CIRCUIT

TEMPERATURE
DETECTION

CURRENT
DETECTION

RADIATOR
FAN MOTOR

FAN CONTROLLER

ENGINE
CONTROL
SYSTEM