Mitsubishi Montero (2002-2004). Manual — part 121

CENTRALIZED JUNCTION

TSB Revision

CIRCUIT DIAGRAMS

90-23

5

Ignition switch (IG2)

10

Red

A/C compressor relay, A/C-ECU, A/C
switch, M-ASTC-ECU, automatic
compressor controller, condenser fan
relay, defogger relay, DRL-ECU, front
blower relay, front-ECU, motor relay
A, outside/inside air selection damper
control motor, rear A/C control unit,
rear A/C switch, rear A/C unit, rear
blower relay, rear cooler switch, rear
cooler control unit, rear cooler unit,
rear fan control switch (front), rear
heater control unit, rear heater switch,
steering wheel sensor, sunroof motor
assembly, tone alarm, transfer-ECU
and valve relay

6

Ignition switch (IG1)

10

Red

Auto-cruise control switch, column
switch, combination meter, ETACS-
ECU, motor antenna-ECU, side step
light-ECU, solenoid valve A, B, SRS-
ECU and vehicle speed sensor

7

−

−

−

8

10

Red

Front propeller shaft speed sensor, G
and yaw rate sensor, input shaft
speed sensor, output shaft speed
sensor, rear propeller shaft speed
sensor, shift switch assembly, SRS-
ECU, transfer shift lever switch and
transmission range switch

9

Fusible link No.1

−

−

−

10

20

Yellow

Combination meter, data link
connector and ETACS-ECU

11

30

Pink

Defogger relay

12

30

Pink

Front blower relay

13

−

−

−

−

14

−

−

−

15

−

−

−

16

−

−

−

17

Ignition switch (IG2)

10

Red

M-ASTC-ECU and motor relay B

18

Defogger relay

10

Red

Remote controlled mirror

19

Fusible link No.4

20

Yellow

Sunroof motor assembly

20

Ignition switch (IG2)

20

Yellow

Heated seat switch

NO. POWER SUPPLY

CIRCUIT

NAME

RATED
CAPACITY (A)

HOUSING
COLOR

LOAD CIRCUIT

CENTRALIZED JUNCTION

TSB Revision

CIRCUIT DIAGRAMS

90-24

CENTRALIZED RELAY

AC203972

17

18

19

20

(IN JUNCTION BLOCK)

AB

1

2

3

4

5

6

7

8

11

13

14

15

9

16

12

10

CONNECTOR NO.

NAME

CONNECTOR NO.

NAME

A-06X

−

B-20X

−

A-07X

Front-ECU

B-21X

Valve relay

A-08X

Front-ECU

B-22X

MFI relay

A-09X

Condenser fan relay

B-23X

Throttle actuator control
motor relay

A-10X

Horn relay

A-11X

Theft-alarm horn relay

B-24X

Fuel pump relay (2)

A-12X

A/C compressor relay

B-25X

Inspection connector

A-13X

Fog light relay

B-53X

Motor relay A

B-19X

Fuel pump relay (1)

B-54X

Motor relay B

CENTRALIZED JUNCTION

TSB Revision

CIRCUIT DIAGRAMS

90-25

AC100710

(RELAY BOX IN ENGINE COMPARTMENT)

FRONT OF
VEHICLE

AE

A-06X

A-07X

A-08X

A-09X

A-10X

A-11X

A-12X

A-13X

2

10

11

21

22

23

24

25

26

27

28

29

30

31

1

3

4

5

1

2

3

4

5

6

7

8

9

2
1

3

4

5

2
1

3

4

5

2
1

3

4

5

2
1

3

4

5

AC203937 AB

B-53X

B-54X

B-19X

B-20X

B-21X

B-22X

B-23X

B-24X

B-25X

1

2

3

4

5

1

2

3

4

5

1

2

3

4

5

1

2

3

4

1

2

3

4

1

2

3

4

1

2

3

4

1

2

3

4

1

2

3

POWER DISTRIBUTION SYSTEM

TSB Revision

CIRCUIT DIAGRAMS

90-26

POWER DISTRIBUTION SYSTEM

M1901000400523