Mitsubishi Colt Ralliart. Manual - part 149

ENGINE CONTROL SYSTEM

CIRCUIT DIAGRAMS

90-21

ENGINE CONTROL SYSTEM <4A91-CVT> (CONTINUED)

IGNITION 
SWITCH (IG1)

COMBINATION 
METER

METER 
AND 
A/C-ECU

DIAGNOSIS 
CONNECTOR

EPS-ECU

ENGINE-CVT-ECU

SRS

FRONT SIDE

FUSIBLE 
LINK

6

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

(CAN2)

(CAN1)

·BACK-UP LAMP
·CAN
·CENTRAL DOOR
 LOCKING SYSTEM
·DOOR AJAR WARNING BUZZER
·ELECTRIC RETRACTABLE
 REMOTE CONTROLLED MIRROR
·FOG LAMP
·HEADLAMP
·METER AND GAUGE
·POWER WINDOWS
·REAR WIPER AND WASHER
·ROOM LAMP, LUGGAGE
 COMPARTMENT LAMP AND
 IGNITION KEY CYLINDER
 ILLUMINATION LAMP
·TAIL LAMP, POSITION LAMP,
 LICENCE PLATE LAMP AND
 LIGHTING MONITOR BUZZER
·TURN-SIGNAL LAMP AND
 HAZARD WARNING LAMP
·WINDSHIELD WIPER AND WASHER

Main

Index

Group

TOC

ENGINE CONTROL SYSTEM

CIRCUIT DIAGRAMS

90-22

ENGINE CONTROL SYSTEM <4G15>

M1901000805225

IGNITION 
SWITCH (IG1)

FUSIBLE 
LINK

1

FUEL 
PUMP 
RELAY 1

FUEL 
PUMP 
RELAY 2

FUEL PUMP 
AND GAUGE 
UNIT

ENGINE-
ECU

BATTERY 
BACK-UP

POWER 
SOURCE

POWER 
SOURCE

·ABS AND
 ASC <4G15>
·STOP LAMP

STOP LAMP 
SWITCH

ENGINE 
CONTROL 
RELAY

THROTTLE 
VALVE 
CONTROL 
SERVO 
RELAY

BAROMETRIC 
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

Main

Index

Group

TOC

ENGINE CONTROL SYSTEM

CIRCUIT DIAGRAMS

90-23

ENGINE CONTROL SYSTEM <4G15> (CONTINUED)

OXYGEN
SENSOR (FRONT)

OXYGEN
SENSOR (REAR)

CAMSHAFT 
POSITION 
SENSOR

CRANK 
ANGLE 
SENSOR

DETONATION 
SENSOR

ENGINE 
CONTROL 
RELAY

J/B

INJECTOR 
No.1

INJECTOR 
No.2

INJECTOR 
No.3

INJECTOR 
No.4

ENGINE-
ECU

OIL 
FEEDER 
CONTROL 
VALVE

PURGE 
CONTROL 
SOLENOID 
VALVE

ENGINE 
COOLANT 
TEMPERATURE 
SENSOR

WASTEGATE 
SOLENOID 
VALVE

FUEL 
PRESSURE 
SOLENOID 
VALVE

ENGINE 
CONTROL RELAY

J/B

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

CLUTCH SWITCH 
(FOR ENGINE 
CONTROL)

ENGINE CONTROL SYSTEM <4G15> (CONTINUED)

THROTTLE 
VALVE 
CONTROL 
SERVO

THROTTLE POSITION 
SENSOR

ELECTRONIC 
CONTROL 
THROTTLE 
VALVE

INTAKE AIR 
TEMPERATURE 
SENSOR

(MAIN)

(SUB)

HALL IC

HALL IC

(MAIN)

(SUB)

HALL IC

HALL IC

MOTOR DRIVE 
CIRCUIT

ENGINE- 
ECU

ACCELERATOR PEDAL 
POSITION 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

AIR FLOW
SENSOR

IGNITION SYSTEM

AUDIO SYSTEM

CHARGING 
SYSTEM

·AUTOMATIC AIR
 CONDITIONER
·COOLING SYSTEM AUTOMATIC AIR 

CONDITIONER

(EARTH 7)

(EARTH 8)

ENGINE CONTROL 
RELAY

J/B

FUEL WARNING LAMP, 
OIL PRESSURE WARNING LAMP, 
SEAT BELT WARNING LAMP 
AND BRAKE WARNING LAMP

IMMOBILIZER 
SYSTEM

STARTER

STARTER
RELAY

IGNITION 
SWITCH (ST)

CLUTCH 
SWITCH 
(FOR
 STARTER)

Main

Index

Group

TOC

ENGINE CONTROL SYSTEM

CIRCUIT DIAGRAMS

90-24

ENGINE CONTROL SYSTEM <4G15> (CONTINUED)

IGNITION 
SWITCH (IG1)

COMBINATION 
METER

METER 
AND 
A/C-ECU

DIAGNOSIS 
CONNECTOR

EPS-ECU

ENGINE-
ECU

ASC-ECU

SRS

FRONT 
SIDE

FUSIBLE 
LINK

6

·BACK-UP LAMP
·CAN
·CENTRAL DOOR
 LOCKING SYSTEM
·DOOR AJAR
 WARNING BUZZER
·ELECTRIC RETRACTABLE
 REMOTE CONTROLLED
 MIRROR
·FOG LAMP
·HEADLAMP
·METER AND GAUGE
·POWER WINDOWS
·REAR WIPER
 AND WASHER
·ROOM LAMP, LUGGAGE
 COMPARTMENT LAMP AND
 IGNITION KEY CYLINDER
 ILLUMINATION LAMP
·TAIL LAMP, POSITION
 LAMP, LICENCE PLATE
 LAMP AND LIGHTING
 MONITOR BUZZER
·TURN-SIGNAL LAMP AND
 HAZARD WARNING LAMP
·WINDSHIELD WIPER
 AND WASHER

(CAN2)

(CAN1)

·FRONT WHEEL 
 SPEED SENSOR 
·REAR WHEEL 
 SPEED SENSOR

INPUT SIGNAL

ABS AND ASC 
<4G15>

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

Main

Index

Group

TOC