Mitsubishi Montero (2004+). Manual - part 689

SWS DIAGNOSIS

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-13

<DATA LIST REFERENCE TABLE>

• COLUMN ECU (column switch)

CHECK 
ITEM

ITEM 
NO.

DISPLAY ON 
SCAN TOOL

CHECK CONDITION

NORMAL 
CONDITION

Dimmer 
switch

02

DIMMER SW

Dimmer switch: ON

ON

Dimmer switch: OFF

OFF

Windshield 
washer 
switch

09

FRONT 
WASH.SW

Windshield washer switch: ON

ON

Windshield washer switch: OFF

OFF

Headlight 
washer 
switch

16

H/L WASHER 
SW

Headlight washer switch: ON

ON

Headlight washer switch: OFF

OFF

Headlight 
switch

00

HEADLIGHT 
SW

Lighting switch: HEAD

ON

Lighting switch: Other than HEAD

OFF

Windshield 
high-speed 
wiper switch

07

HI WIPER SW

Wiper switch: HI

ON

Wiper switch: Other than HI

OFF

With or 
without 
windshield 
intermittent 
wiper interval 
adjusting 
knob

15

INT WIPE 
KNOB

Vehicles with intermittent wiper adjusting 
knob

EQUIP

Vehicles without intermittent wiper adjusting 
knob

NON

Windshield 
intermittent 
wiper switch

05

INT WIPER SW Wiper switch: INT

ON

Wiper switch: Other than INT

OFF

Windshield 
low-speed 
wiper switch

06

LO WIPER SW Wiper switch: LO

ON

Wiper switch: Other than LO

OFF

Windshield 
mist wiper 
switch

08

MIST WIPER 
SW

Wiper switch: Mist

ON

Wiper switch: Other than "Mist" position

OFF

Passing light 
switch

03

PASSING SW

Passing light switch: ON

ON

Passing light switch: OFF

OFF

Tail light 
switch

01

TAILLIGHT SW Lighting switch: TAIL

ON

Lighting switch: OFF

OFF

Turn-signal 
light switch 
(LH)

11

T/S LH SW

Turn-signal light switch: LH

ON

Turn-signal light switch: Other than LH

OFF

Turn-signal 
light switch 
(RH)

10

T/S RH SW

Turn-signal light switch: RH

ON

Turn-signal light switch: Other than RH

OFF

SWS DIAGNOSIS

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-14

• ETACS ECU

Rear wiper 
switch

13

REAR WIPER 
SW

Rear wiper switch: INT

ON

Rear wiper switch: Other than INT

OFF

Rear washer 
switch

14

REAR 
WASH.SW

Rear wiper switch: Washer

ON

Rear wiper switch: Other than "Washer" 
position

OFF

CHECK 
ITEM

ITEM 
NO.

DISPLAY ON 
SCAN TOOL

CHECK CONDITION

NORMAL 
CONDITION

CHECK 
ITEM

ITEM 
NO.

DISPLAY ON 
SCAN TOOL

CHECK CONDITION

NORMAL 
CONDITION

BEEP DATA 60

beep data

1. Ignition switch: ACC or ON
2. Carry out the audio preset operation.

ON (2 kHz) (only 
momentarily when 
switch is operated)

Other than the condition above

OFF

Tone alarm

43

BUZZER

1. Ignition switch: LOCK (OFF)
2. Key reminder switch: ON
3. Front door switch: ON (front door open)

ON

When requirements for sounding each 
warning tone alarm are not satisfied

OFF

Front door 
switch

32

FRONT DOOR 
SW

Front door switch (right or left): right or left 
door switch is on (right or left front door is 
open)

ON

Front door switches (right and left): both 
right and left door switches are off (both 
right and left front doors are closed)

OFF

Center 
display input 
signal

62

DISPLAY 
SIGNAL

1. Ignition switch: ACC or ON
2. Carry out the audio preset operation.

YES (only 
momentarily when 
switch is operated)

Other than the condition above

NO

Center 
display sleep 
status

61

DISPLAY 
SLEEP

Ignition switch: LOCK (OFF)

SLEEPING

Ignition switch: ACC or ON

OPERATING

Front door 
switch

32

FRONT DOOR 
SW

Front door switch (right or left): right front 
door or left front door switch is on (right or 
left front door is open):

ON

Front door switch (right or left): Both right 
and left door switches are off (both right and 
left front doors are closed)

OFF

Front fog 
lights

36

F.FOG LIGHT

1. Lighting switch: HEAD or TAIL
2. Fog light switch: ON

ON

Other than the condition above

OFF

SWS DIAGNOSIS

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-15

NOTE: For item number 43, the scan tool also dis-
play "ON" when the light reminder tone alarm or R 
(reverse) position warning tone alarm is triggered.

• FRONT ECU

NOTE: For item number 70, the scan tool also dis-
plays "NG" under the "ECU COMM CHK" when it dis-
plays "NO ACK" under the front-ECU check.

• SUNROOF ECU (sunroof motor assembly)

Headlight 
automatic 
shutdown 
function

35

H/L AUTO-CUT 1. Lighting switch: Other than OFF

2. Ignition switch: from ON or START to 

LOCK (OFF) or ACC

3. Front door switch: ON (front door open)

OFF to ON (after 
approximately one 
second)

When requirements for the headlight 
automatic shutdown are not satisfied

OFF

Ignition 
switch (IG1)

30

IG SW (IG1)

Ignition switch: ON or START

ON

Ignition switch: LOCK (OFF) or ACC

OFF

Ignition 
switch (ACC)

31

IG SW (ACC)

Ignition switch: ACC or ON

ON

Ignition switch: LOCK (OFF) or START

OFF

Transmission 
range switch 
("R" position)

41

INHIBITOR SW Transmission range switch: R position

ON

Transmission range switch: Other than R 
position

OFF

Windshield 
intermittent 
wiper interval

37

INT WIPE 
TIME

1. Ignition switch: ACC or ON
2. Operate the intermittent wiper adjusting 

knob, and change the wiper interval

The scan tool 
displays 
intermittent wiper 
interval in 
response to the 
intermittent wiper 
adjusting knob 
positions

Theft-alarm 
headlights

45

THEFTALM. 
H/L

Keyless entry transmitter panic button: ON

ON

Keyless entry transmitter panic button: OFF OFF

CHECK 
ITEM

ITEM 
NO.

DISPLAY ON 
SCAN TOOL

CHECK CONDITION

NORMAL 
CONDITION

CHECK 
ITEM

ITEM 
NO.

DISPLAY ON 
SCAN TOOL

CHECK CONDITION

NORMAL 
CONDITION

Response by 
the 
front-ECU

70

FRONT ECU 
ACK

Lighting switch is at position other than OFF 
(excluding when high-beam is on) or the 
wiper switch is at position other than OFF

NORMAL ACK

• Ignition switch: ON or START

• Lighting switch: OFF

• Wiper switch: OFF

SLEEP ACK

• Lighting switch: HEAD

• Headlight: High-beam

HI-BEAM ACK

Except above conditions

NO ACK

SWS DIAGNOSIS

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-16

NOTE: For item number 72, the scan tool also dis-
plays "NG" under the "ECU COMM CHK" when it dis-
plays "No response" under the sunroof-ECU check.
<FUNCTION DIAGNOSIS>
The table below shows the service data and their 
normal condition, which are displayed during the 
"FUNCTION DIAG." The row "Normal condition" 
shows values, which are shown when each opera-
tion is made.

• WIPER

CHECK 
ITEM

ITEM 
NO.

DISPLAY ON 
SCAN TOOL

CHECK CONDITION

NORMAL 
CONDITION

Response by 
the 
sunroof-ECU

72

S/R ECU ACK

1. Ignition switch: ON or START
2. While sunroof is off

NORMAL ACK 

→ 

SLEEP ACK (after 
approximately 30 
seconds)

1. Ignition switch: ON or START
2. One of the sunroof switches is on

INPUT CHECK 

→ 

NORMAL ACK

Except above conditions

NO ACK

ITEM

ITEM 
NO.

INPUT SIGNAL

DISPLAY ON SCAN TOOL NORMAL CONDITION

F.WIPER HI

05

Windshield 
intermittent wiper 
switch

INT WIPER SW

OFF

06

Windshield 
low-speed wiper 
switch

LO WIPER SW

OFF

07

Windshield 
high-speed wiper 
switch

HI WIPER SW

ON

08

Windshield mist 
wiper switch

MIST WIPER SW

OFF

09

Windshield washer 
switch

FRONT WASH.SW

OFF

31

Ignition switch 
(ACC)

IG SW (ACC)

ON

70

Response by the 
front-ECU

FRONT ECU ACK

NORMAL ACK or HI-BEAM 
ACK