Mitsubishi Montero (2002-2004). Manual - part 120

JOINT CONNECTOR

TSB Revision

CIRCUIT DIAGRAMS

90-19

CENTRALIZED JUNCTION

TSB Revision

CIRCUIT DIAGRAMS

90-20

CENTRALIZED JUNCTION

M1901000300515

FUSIBLE LINK AND FUSE

ENGINE COMPARTMENT

NO. POWER SUPPLY 

CIRCUIT

NAME

RATED 
CAPACITY (A)

HOUSING 
COLOR

LOAD CIRCUIT

1

Battery

Fusible 
link

120

White

Fusible link No.2 and fuses No.6, 8, 9, 
10, 11, 12, 18, 19 (relay box in engine 
compartment) <when the engine is 
stopped>, Fusible links No.3, 4, 5, 
fuses No.13, 14, 15, 16, fog light relay 
and front-ECU <after starting the 
engine> circuit

2

Fusible link No. 1

60

Yellow

Fuses No.10, 11, 12 (in junction 
block) circuit

3

Battery

40

Green

Ignition switch circuit

4

30

Pink

Fuse No.19 (in junction block), 
amplifier, front-ECU, power seat 
assembly and power window relay

5

20

Blue

MFI relay and powertrain control 
module

6

Fusible link No. 1

Fuse

20

Yellow

Fuel pump relay (1), (2)

7

−

−

−

8

15

Blue

Accessory socket relay

9

15

Blue

DRL-ECU

10

25

Transpare
nt

Condenser fan relay

11

20

Yellow

Rear blower relay

12

10

Red

Theft-alarm horn relay

13

Battery

10

Red

Horn relay

14

20

Yellow

A/T control relay

15

10

Red

ETACS-ECU and generator

16

15

Blue

Stoplight switch

17

Ignition switch (ACC)

10

Red

Accessory socket relay, clock, motor 
antenna-ECU, radio and CD player

18

Fusible link No. 1

10

Red

A/C-ECU, cargo space light, clock, 
column switch, combination meter, 
dome light, ETACS-ECU, front door 
light, front-ECU, key reminder switch, 
motor antenna-ECU, radio and CD 
player, rear door light, rear personal 
light, RV meter, side step light-ECU, 
steering wheel sensor, sunroof motor 
assembly, theft-alarm indicator light, 
transfer-ECU and vanity mirror light

19

10

Red

A/C compressor relay

CENTRALIZED JUNCTION

TSB Revision

CIRCUIT DIAGRAMS

90-21

NO. POWER SUPPLY 

CIRCUIT

NAME

RATED 
CAPACITY (A)

HOUSING 
COLOR

LOAD CIRCUIT

20

Fog light relay

20

Yellow

Combination meter and fog light

21

Ignition switch (ACC)

−

−

−

22

20

Yellow

Front-ECU and windshield wiper 
motor

23

Front-ECU (Taillight 
relay)

10

Red

A/C-ECU, A/C switch, A/T shift 
illumination light, Active skid control  
switch, ashtray illumination light, 
automatic compressor controller, 
cigarette lighter illumination light, 
clock, combination meter, fog light 
switch, glove box light, hazard 
warning light switch, heated seat 
switch, heater control panel 
illumination light, position light (RH), 
radio and CD player, rear A/C switch, 
rear cooler switch, rear combination 
light (RH), rear fan control switch 
(front), rear heater switch, rear light 
(RH), remote controlled mirror switch, 
rheostat, RV meter and sunroof 
switch

24

10

Red

License plate light assembly, position 
light (LH), rear combination light (LH) 
and rear light (LH)

25

Front-ECU (Headlight 
relay : Low)

10

Red

Headlight (RH)

26

10

Red

Headlight (LH)

27

Front-ECU (Headlight 
relay : High)

10

Red

Headlight (RH)

28

10

Red

Headlight (LH)

29

Battery

Fusible 
link

−

−

−

30

−

−

−

31

60

Yellow

Valve relay

32

40

Green

Motor relay A, B

33

−

−

−

CENTRALIZED JUNCTION

TSB Revision

CIRCUIT DIAGRAMS

90-22

PASSENGER COMPARTMENT

AC203970

(RELAY BOX IN ENGINE COMPARTMENT)

1

2

3

4

29

5

30

FRONT OF 
VEHICLE

AB

6

7

8

9

10

11

12

13 14

15 16

22

21

17

18

19

20

23 24

25 26

27 28

ACX01517

(CONNECTED DIRECTLY TO BATTERY POSITIVE TERMINAL)

31

32

33

AC

NO. POWER SUPPLY 

CIRCUIT

NAME

RATED 
CAPACITY (A)

HOUSING 
COLOR

LOAD CIRCUIT

1

Ignition switch (ACC) Fuse

15

Blue

A/C-ECU, ETACS-ECU and remote 
controlled mirror switch

2

−

−

−

3

−

−

−

4

15

Blue

Cigarette lighter and RV meter