Mitsubishi Grandis. Manual - part 451

PTC HEATER <RHD>

CIRCUIT DIAGRAMS

90-125

PTC HEATER <RHD>

M1901020600024

CPU

Wire colour code
B : Black     LG : Light green     G : Green     L : Blue     W : White     Y : Yellow     SB : Sky blue
BR : Brown     O : Orange     GR : Gray     R : Red     P : Pink     V : Violet   

PTC 
HEATER 
SWITCH

TAIL LAMP, 
POSITION LAMP, 
LICENCE PLATE 
LAMP AND LIGHTING 
MONITOR BUZZER

·DUAL AUTOMATIC
 AIR CONDITIONER
·SINGLE AUTOMATIC
 AIR CONDITIONER

·DUAL AUTOMATIC
 AIR CONDITIONER
·SINGLE AUTOMATIC
 AIR CONDITIONER

RELAY 
BOX

TAIL LAMP 
RELAY

FRONT-ECU

COMBINATION 
METER

CIGARETTE 
LIGHTER AND 
ASHTRAY 
ILLUMINATION LAMP

FET FOR 
DIPPER

DAYTIME 
DIPPER 
BUTTON

FUSIBLE 
LINK

28

IGNITION 
SWITCH (IG2)

PTC 
HEATER 
RELAY 1

A/C-ECU

PTC 
HEATER 
RELAY 2

PTC 
HEATER 

·FRONT FOG LAMP

·WINDSHIELD
 WIPER AND WASHER

·HEADLAMP
·HEADLAMP WASHER
·REAR FOG LAMP
·TAIL LAMP, POSITION
 LAMP, LICENCE PLATE
 LAMP AND LIGHTING
 MONITOR BUZZER

PTC HEATER <RHD>

CIRCUIT DIAGRAMS

90-126

PTC HEATER <RHD> (CONTINUED)

ENGINE-ECU 
<M/T> OR 
ENGINE-A/T-
ECU <A/T>

INPUT SIGNAL

ENGINE COOLANT 
TEMPERATURE 
SENSOR

A/C-ECU

DIAGNOSIS 
CONNECTOR

30

FUSIBLE 
LINK

·DUAL AUTOMATIC
 AIR CONDITIONER
·SINGLE AUTOMATIC
 AIR CONDITIONER

FRONT 
SIDE

SINGLE AUTOMATIC AIR CONDITIONER <LHD>

CIRCUIT DIAGRAMS

90-127

SINGLE AUTOMATIC AIR CONDITIONER <LHD>

M1901020700010

IGNITION 
SWITCH (ACC)

RELAY 
BOX

A/C-ECU

POWER 
SOURCE

POWER 
SOURCE

·CAN 
·CENTER
 DISPLAY

REFER TO 
POWER 
DISTRIBUTION 
SYSTEM

FRONT 
BLOWER 
RELAY

IGNITION 
SWITCH (IG2)

FRONT 
BLOWER 
MOTOR

OUTSIDE/
INSIDE AIR 
SELECTION 
DAMPER 
CONTROL 
MOTOR

FRONT POWER 
TRANSISTOR

FUSIBLE 
LINK

30

J/B

AUDIO 
SYSTEM

ETACS-ECU

ILLUMINATION 
POWER SOURCE

SINGLE AUTOMATIC AIR CONDITIONER <LHD>

CIRCUIT DIAGRAMS

90-128

SINGLE AUTOMATIC AIR CONDITIONER <LHD> (CONTINUED)

SINGLE AUTOMATIC AIR CONDITIONER <LHD> (CONTINUED)

Wire colour code
B : Black     LG : Light green     G : Green     L : Blue      
W : White     Y : Yellow     SB : Sky blue     BR : Brown 
O : Orange     GR : Gray     R : Red     P : Pink     V : Violet

AMBIENT 
TEMPERATURE 
SENSOR

PHOTO SENSOR

REAR 
HEATER 
CONTROLLER

A/C 
PRESSURE 
SENSOR

MODE SELECTION 
DAMPER CONTROL 
MOTOR AND 
POTENTIOMETER

INTERIOR 
TEMPERATURE 
SENSOR

AIR THERMO 
SENSOR

FRONT AIR MIXING DAMPER CONTROL MOTOR 
AND POTENTIOMETER

J/C(6)

A/C-
ECU

·FRONT FOG LAMP
·HEADLAMP
·HEADLAMP WASHER
·REAR FOG LAMP
·TAIL LAMP, POSITION LAMP,
 LICENCE PLATE LAMP AND
 LIGHTING MONITOR BUZZER
·WINDSHIELD WIPER
 AND WASHER

·CAN 
·CENTRE DISPLAY 
·CENTRAL DOOR LOCKING SYSTEM
 <WITH KEYLESS ENTRY SYSTEM> 
·DOOR AJAR
 WARNING BUZZER 
·DOOR LAMP AND
 LUGGAGE COMPARTMENT LAMP 
·ELECTRIC RETRACTABLE
 REMOTE CONTROLLED
 MIRROR 
·FRONT FOG LAMP 
·HEADLAMP 
·HEADLAMP WASHER
·METER AND GAUGE 
·POWER WINDOWS 
·REAR FOG LAMP 
·REAR WIPER AND WASHER 
·ROOM LAMP, REAR PERSONAL
 LAMP AND IGNITION KEY
 CYLINDER ILLUMINATION LAMP 
·SUNROOF 
·TAIL LAMP, POSITION LAMP,
 LICENCE PLATE LAMP AND
 LIGHTING MONITOR BUZZER 
·TURN-SIGNAL LAMP AND
 HAZARD WARNING LAMP 
·VANITY MIRROR LAMP
·WINDSHIELD WIPER
 AND WASHER

BATTERY 
BACK-UP

·CENTRE DISPLAY
·CIGARETTE LIGHTER AND
 ASHTRAY ILLUMINATION LAMP 
·HEATED SEAT 
·SPARE CONNECTOR
 (FOR NAVIGATION SYSTEM) 
·TAIL LAMP, POSITION LAMP,
 LICENCE PLATE LAMP AND
 LIGHTING MONITOR BUZZER

TAIL LAMP, 
POSITION LAMP, 
LICENCE PLATE 
LAMP AND LIGHTING 
MONITOR BUZZER

·CAN 
·CENTRE
 DISPLAY

CIGARETTE 
LIGHTER AND 
ASHTRAY 
ILLUMINATION 
LAMP

FRONT-ECU

(TAIL LAMP RELAY)

A/C-ECU

·HEATED
 DOOR
 MIRROR 
·REAR
 WINDOW
 DEFOGGER

Wire colour code
B : Black     LG : Light green     G : Green     L : Blue     W : White     Y : Yellow     SB : Sky blue
BR : Brown     O : Orange     GR : Gray     R : Red     P : Pink     V : Violet

26

FUSIBLE 
LINK

J/C (5)

(FUSE     )

5

A/C 
COMPRESSOR 
RELAY

A/C 
REFRIGERANT 
TEMPERATURE 
SWITCH

MAGNETIC 
CLUTCH

A/C 
COMPRESSOR 
ASSEMBLY

ENGINE-ECU 
<M/T> OR 
ENGINE-A/T-ECU 
<A/T>

RELAY 

BOX