Mitsubishi Montero (2004+). Manual - part 843

 

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Mitsubishi Montero (2004+). Manual - part 843

 

 

CHECK AT ECU TERMINAL

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-629

24

Input from fog light switch

Fog light switch: ON (When the 
switch is depressed)

0 V

25

Input of driver's seat belt switch 
signal

Driver's seat belt switch: ON 
(seat belts unfastened)

0 V

26

Input of key reminder switch 
signal

Key reminder switch: ON 
(ignition key removed)

0 V

27

Input of hazard warning light 
switch signal

Hazard warning light switch: ON 
(When the switch is depressed)

0 V

28

Input of back door lock key 
cylinder switch (LOCK) signal

Back door lock key cylinder 
switch: LOCK

0 V

29

Input of front passengers's door 
switch signal

Front passenger's door switch: 
ON (Front passenger's door 
open)

0 V

31

Output of data request signal

Always

− 5 V (pulse signal)

34

Input of signal from windshield 
intermittent wiper interval 
adjusting knob

Ignition switch: "ACC,"
Windshield intermittent wiper 
interval adjusting knob: "FAST" 
→ "SLOW"

→ 2.5 V

35

Input of "R" position signal from 
transmission range switch

Ignition switch: "ON,"
Selector lever: "R"

Battery positive voltage

36

Output to ignition key hole 
illumination light

When ignition key hole 
illumination light is on

2 V or less

37

Output to data link connector

When DTC sets

− 12 V (pulse signal)

When input check signal is 
output

− 12 V (when input 

pulse signal is 
fluctuating)

39

Output to seat belt warning light When seat belt warning light is 

on

2 V or less

40

Output to the theft-alarm 
indicator light

When the theft-alarm indicator 
light is on

2 V or less

42

Output to horn

When a horn sounds by the 
keyless entry horn answerback 
function or the theft-alarm 
system

2 V or less

45

Input of back door lock key 
cylinder switch (UNLOCK) signal

Back door lock key cylinder 
switch: UNLOCK

0 V

46

Input of front passenger's door 
lock actuator switch (UNLOCK) 
signal

Front passenger's door lock 
actuator switch: UNLOCK

0 V

47

Input of rear and back door lock 
actuator switch (UNLOCK) 
signals

Rear or back door lock actuator 
switch: UNLOCK

0 V

48

Input signal from the hood switch Hood switch: ON (Hood open)

0 V

49

Output to the theft-alarm horn

When theft-alarm horn is 
sounding

2 V or less

TERMINAL 
NO.

INSPECTION ITEM

INSPECTION CONDITION

NORMAL VALUE

CHECK AT ECU TERMINAL

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-630

2. COLUMN SWITCH

50

Input of driver's and front 
passenger's door lock key 
cylinder switch (LOCK) signals

Driver's or front passenger's door 
lock key cylinder switch: LOCK

0 V

51

Input of front passenger's door 
lock key cylinder switch 
(UNLOCK) signal

Front passenger's door lock key 
cylinder switch: UNLOCK

0 V

52

Input of driver's door lock key 
cylinder switch (UNLOCK) signal

Driver's door lock key cylinder 
switch: UNLOCK

0 V

53

Input of door lock switch signal 
(LOCK)

Door lock switch: LOCK

0 V

54

Input of door lock switch signal 
(UNLOCK)

Door lock switch: UNLOCK

0 V

55

Input of driver's door lock 
actuator switch (LOCK) signal

Driver's door lock actuator 
switch: LOCK

0 V

56

Input of driver's door lock 
actuator switch (UNLOCK) signal

Driver's door lock actuator 
switch: UNLOCK

0 V

TERMINAL 
NO.

INSPECTION ITEM

INSPECTION CONDITION

NORMAL VALUE

5

4

3

2

1

10

9

8

7

6

ACX01512

TERMINAL 
NO.

INSPECTION ITEM

INSPECTION CONDITION

NORMAL VALUE

1

Battery power supply

Always

Battery positive voltage

2

Input of data request signal

Always

− 5 V (pulse signal)

3

SWS communication line

Always

− 12 V (pulse signal)

4

Ground

Always

0 V

6

Output of signal from windshield 
intermittent wiper interval 
adjusting knob

Igniting switch: "ACC,"
Windshield intermittent wipe 
interval adjusting knob: "FAST" 
to "SLOW"

→ 2.5 V

8

Output of backup signal from 
windshield wiper switch

Windshield low-speed wiper 
switch or windshield high-speed 
wiper switch: ON

0 V (when the 
windshield wiper motor 
is on)
12 V (when the 
windshield wiper motor 
is off)

9

Power supply to ignition switch 
(IG1)

Ignition switch: "ON"

Battery positive voltage

10

Output of backup signal from 
headlight switch

Ignition switch: "ON,"
Headlight switch: ON

− 1 V

CHECK AT ECU TERMINAL

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-631

3. FRONT-ECU

NOTE: Terminal voltages can not be measured as 
the front-ECU is installed directly on the relay box. 
Therefore, this information is only for reference.

1 2 3 4 5

7

9 10

6

8

11

21 22 23 24 25

27

26

28 29 30 31

ACX01513

TERMINAL 
NO.

INSPECTION ITEM

INSPECTION CONDITION

NORMAL VALUE

1

Output to the fog light relay

When the fog lights are on

2 V or less

2

Output to headlight (high-beam) When headlights (high-beam) 

are on

Battery positive voltage

3, 4

Battery power supply (for 
headlight)

Always

Battery positive voltage

5

Battery power supply (for 
taillight)

Always

Battery positive voltage

6

Output to headlight (low-beam)

When headlights (low-beam) are 
on

Battery positive voltage

7

Battery power supply (for ECU)

Always

Battery positive voltage

8

Output to taillights

When taillights are on

Battery positive voltage

9

Battery power supply (for 
headlight washer)

Always

Battery positive voltage

11

Output to the headlight washer

When the headlight washer is 
working

Battery positive voltage

21

Output to windshield washer

When windshield washer is on

Battery positive voltage

22

SWS communication line

Always

− 12 V (pulse signal)

23

Input of automatic stop signal to 
windshield wiper

When windshield wiper is on

Battery positive voltage

24

Power supply to ignition switch 
(ACC)

Ignition switch: ACC

Battery positive voltage

25

Input of backup signal from 
headlight switch

Headlight switch: ON

0 V

26

Input of backup signal to 
windshield wiper

Windshield low-speed wiper 
switch or windshield high-speed 
wipe switch: ON

0 V

27

Output to windshield wiper 
(low-speed)

When windshield wiper is on (at 
low speed)

Battery positive voltage

28

Output to windshield wiper 
(high-speed)

When windshield wiper is on (at 
high speed)

Battery positive voltage

30

Power supply to ignition switch 
(IG2)

Ignition switch: ON

Battery positive voltage

31

Ground

Always

0 V

CHECK AT ECU TERMINAL

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-632

4. SUNROOF MOTOR ASSEMBLY

5. RV METER

Refer to GROUP 54A, RV Meter 

P.54A-281

.

5

4

3

2

1

10

9

8

7

6

ACX01514

TERMINAL 
NO.

INSPECTION ITEM

INSPECTION CONDITION

NORMAL VALUE

1

Battery power supply (for motor) Always

Battery positive voltage

2

Power supply to ignition switch 
(IG2)

Ignition switch: ON

Battery positive voltage

3

Battery power supply (for ECU)

Always

Battery positive voltage

5

Ground

Always

0 V

6

Input signal ("CLOSE/DOWN") 
from the sunroof switch 

Sunroof switch: "CLOSE/DOWN" 0 V

7

Input signal ("UP") from the 
sunroof switch 

Sunroof switch: "UP"

0 V

8

Input signal ("OPEN") from the 
sunroof switch 

Sunroof switch: "OPEN"

0 V

10

SWS communication line

Always

− 12 V (pulse signal)

 

 

 

 

 

 

 

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